CN115536573B - 一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法 - Google Patents
一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法 Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000002194 synthesizing effect Effects 0.000 title claims description 7
- 238000006243 chemical reaction Methods 0.000 claims abstract description 48
- -1 vinylcyclopropane carboxamides Chemical class 0.000 claims abstract description 47
- 239000003054 catalyst Substances 0.000 claims abstract description 9
- 239000000376 reactant Substances 0.000 claims abstract description 8
- 238000001308 synthesis method Methods 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 3
- 229920002554 vinyl polymer Polymers 0.000 claims abstract description 3
- QQZOPKMRPOGIEB-UHFFFAOYSA-N 2-Oxohexane Chemical class CCCCC(C)=O QQZOPKMRPOGIEB-UHFFFAOYSA-N 0.000 claims description 24
- 125000003854 p-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Cl 0.000 claims description 12
- 125000004207 3-methoxyphenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(OC([H])([H])[H])=C1[H] 0.000 claims description 10
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 8
- 238000003786 synthesis reaction Methods 0.000 claims description 7
- 230000015572 biosynthetic process Effects 0.000 claims description 6
- 125000004179 3-chlorophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C(Cl)=C1[H] 0.000 claims description 5
- 125000004800 4-bromophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Br 0.000 claims description 5
- 125000004172 4-methoxyphenyl group Chemical group [H]C1=C([H])C(OC([H])([H])[H])=C([H])C([H])=C1* 0.000 claims description 5
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 2
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 claims description 2
- ZQVKTHRQIXSMGY-UHFFFAOYSA-M 4-ethylbenzoate Chemical compound CCC1=CC=C(C([O-])=O)C=C1 ZQVKTHRQIXSMGY-UHFFFAOYSA-M 0.000 claims 2
- 125000000590 4-methylphenyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 claims 2
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 230000009435 amidation Effects 0.000 abstract description 3
- 238000007112 amidation reaction Methods 0.000 abstract description 3
- 238000012216 screening Methods 0.000 abstract description 2
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 49
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 48
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 30
- 239000012074 organic phase Substances 0.000 description 30
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 16
- 239000003960 organic solvent Substances 0.000 description 16
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 15
- 239000003208 petroleum Substances 0.000 description 15
- 238000002360 preparation method Methods 0.000 description 15
- 239000000741 silica gel Substances 0.000 description 15
- 229910002027 silica gel Inorganic materials 0.000 description 15
- 238000001816 cooling Methods 0.000 description 14
- 239000000047 product Substances 0.000 description 14
- 239000000243 solution Substances 0.000 description 14
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical class [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 13
- 238000000605 extraction Methods 0.000 description 13
- 238000002156 mixing Methods 0.000 description 13
- 238000007865 diluting Methods 0.000 description 12
- 238000001035 drying Methods 0.000 description 12
- 239000003480 eluent Substances 0.000 description 12
- 239000007787 solid Substances 0.000 description 12
- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 6
- IANQTJSKSUMEQM-UHFFFAOYSA-N 1-benzofuran Chemical compound C1=CC=C2OC=CC2=C1 IANQTJSKSUMEQM-UHFFFAOYSA-N 0.000 description 4
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 3
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 3
- 125000001037 p-tolyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1*)C([H])([H])[H] 0.000 description 3
- 229910052763 palladium Inorganic materials 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- RMXLHIUHKIVPAB-OWOJBTEDSA-N (e)-1,4-dibromobut-2-ene Chemical compound BrC\C=C\CBr RMXLHIUHKIVPAB-OWOJBTEDSA-N 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- 238000005888 cyclopropanation reaction Methods 0.000 description 2
- 150000001942 cyclopropanes Chemical class 0.000 description 2
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- LQNUZADURLCDLV-UHFFFAOYSA-N nitrobenzene Chemical compound [O-][N+](=O)C1=CC=CC=C1 LQNUZADURLCDLV-UHFFFAOYSA-N 0.000 description 2
- CTSLXHKWHWQRSH-UHFFFAOYSA-N oxalyl chloride Chemical compound ClC(=O)C(Cl)=O CTSLXHKWHWQRSH-UHFFFAOYSA-N 0.000 description 2
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 238000007363 ring formation reaction Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- FYSNRJHAOHDILO-UHFFFAOYSA-N thionyl chloride Chemical compound ClS(Cl)=O FYSNRJHAOHDILO-UHFFFAOYSA-N 0.000 description 2
- CZCUWZUDNNQIGJ-UHFFFAOYSA-N 2-benzylsulfonyl-n-phenylacetamide Chemical compound C=1C=CC=CC=1NC(=O)CS(=O)(=O)CC1=CC=CC=C1 CZCUWZUDNNQIGJ-UHFFFAOYSA-N 0.000 description 1
- ISGZCVYHHCGKCK-UHFFFAOYSA-N 2-ethenylcyclopropane-1-carboxamide Chemical compound NC(=O)C1CC1C=C ISGZCVYHHCGKCK-UHFFFAOYSA-N 0.000 description 1
- HGWUUOXXAIISDB-UHFFFAOYSA-N 3-azabicyclo[3.1.0]hexane Chemical compound C1NCC2CC21 HGWUUOXXAIISDB-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical class [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LVZWSLJZHVFIQJ-UHFFFAOYSA-N Cyclopropane Chemical compound C1CC1 LVZWSLJZHVFIQJ-UHFFFAOYSA-N 0.000 description 1
- 229930194542 Keto Natural products 0.000 description 1
- PEEHTFAAVSWFBL-UHFFFAOYSA-N Maleimide Chemical compound O=C1NC(=O)C=C1 PEEHTFAAVSWFBL-UHFFFAOYSA-N 0.000 description 1
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Natural products CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 239000008346 aqueous phase Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- WPYMKLBDIGXBTP-UHFFFAOYSA-N benzoic acid Chemical compound OC(=O)C1=CC=CC=C1 WPYMKLBDIGXBTP-UHFFFAOYSA-N 0.000 description 1
- 230000000975 bioactive effect Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 238000010523 cascade reaction Methods 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001212 derivatisation Methods 0.000 description 1
- 229940000406 drug candidate Drugs 0.000 description 1
- 125000005610 enamide group Chemical group 0.000 description 1
- 238000005837 enolization reaction Methods 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000010952 in-situ formation Methods 0.000 description 1
- 125000000468 ketone group Chemical group 0.000 description 1
- 150000002596 lactones Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 230000001404 mediated effect Effects 0.000 description 1
- HZVOZRGWRWCICA-UHFFFAOYSA-N methanediyl Chemical compound [CH2] HZVOZRGWRWCICA-UHFFFAOYSA-N 0.000 description 1
- WWIYGBWRUXQDND-UHFFFAOYSA-N methyl 2-(4-chlorophenyl)acetate Chemical compound COC(=O)CC1=CC=C(Cl)C=C1 WWIYGBWRUXQDND-UHFFFAOYSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000003541 multi-stage reaction Methods 0.000 description 1
- SEEYREPSKCQBBF-UHFFFAOYSA-N n-methylmaleimide Chemical compound CN1C(=O)C=CC1=O SEEYREPSKCQBBF-UHFFFAOYSA-N 0.000 description 1
- 239000012044 organic layer Substances 0.000 description 1
- 239000002243 precursor Substances 0.000 description 1
- 229940002612 prodrug Drugs 0.000 description 1
- 239000000651 prodrug Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 229910052707 ruthenium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000006265 spirocyclization reaction Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/02—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring
- C07D209/52—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom condensed with one carbocyclic ring condensed with a ring other than six-membered
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C231/00—Preparation of carboxylic acid amides
- C07C231/02—Preparation of carboxylic acid amides from carboxylic acids or from esters, anhydrides, or halides thereof by reaction with ammonia or amines
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C259/00—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups
- C07C259/04—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups without replacement of the other oxygen atom of the carboxyl group, e.g. hydroxamic acids
- C07C259/08—Compounds containing carboxyl groups, an oxygen atom of a carboxyl group being replaced by a nitrogen atom, this nitrogen atom being further bound to an oxygen atom and not being part of nitro or nitroso groups without replacement of the other oxygen atom of the carboxyl group, e.g. hydroxamic acids having carbon atoms of hydroxamic groups bound to carbon atoms of rings other than six-membered aromatic rings
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C315/00—Preparation of sulfones; Preparation of sulfoxides
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- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/09—Preparation of carboxylic acids or their salts, halides or anhydrides from carboxylic acid esters or lactones
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
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- C07C51/58—Preparation of carboxylic acid halides
- C07C51/60—Preparation of carboxylic acid halides by conversion of carboxylic acids or their anhydrides or esters, lactones, salts into halides with the same carboxylic acid part
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/333—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton
- C07C67/343—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by isomerisation; by change of size of the carbon skeleton by increase in the number of carbon atoms
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- C07C2601/02—Systems containing only non-condensed rings with a three-membered ring
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Abstract
本发明公开了一种合成氮杂双环[3.1.0]己烷‑2‑酮类化合物的方法,反应物为2‑乙烯基环丙烷‑1‑甲酰胺类化合物,反应条件为在O2氛围和碱性条件,在DMF溶剂中以Pd(PPh3)2Cl2为催化剂,一步制得3‑氮杂双环[3.1.0]己烷‑2‑酮类化合物。本发明采用上述结构的一种合成氮杂双环[3.1.0]己烷‑2‑酮类化合物的方法,在钯催化的乙烯基环丙烷甲酰胺的分子内酰胺化获得构象受限的氮杂双环[3.1.0]己烷‑2‑酮类化合物,进一步丰富了这类化合物的合成方法,同时也为工业化筛选提供了更多的候选方法。
Description
技术领域
本发明涉及有机合成技术领域,特别是涉及一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法。
背景技术
氮杂双环[3.1.0]己烷-2-酮类化合物是有用的有机合成子,通常用于多种生物活性分子的选择性功能化,进而用于药物化学中候选药物的后期修饰。目前有很多文献报道氮杂双环[3.1.0]己烷-2-酮类化合物的合成方法,从合成策略上看,可以将这些方法分为以下三类:第一类是金属介导的链烯环丙烷化多米诺反应构建氮杂双环[3.1.0]己烷-2-酮类化合物。比如文献H、V.Adc℃k,E.Chatzopoulou,P.W.Davies.N-烯丙基炔酰胺的发散C-H***-环化级联,化学,国际编辑2015,54,15525-15529,采用的就是在Pd,Au,Rh,Co,Ni和Ru盐催化剂存在下原位生成金属卡宾物质进而生成氮杂双环[3.1.0]己烷-2-酮类化合物的策略;文献N.V.Shcherbakov,D.V.Dar'in,V.Y.Kukushkin,A.Y.Dubovtsev.金催化的硝基苯从苯并呋喃转移到N-烯丙基炔酰胺:3-氮杂双环[3.1.0]己烷的合成[J]Org.Chem。2021,86,12964-12972,是以金属金为催化剂,以苯并呋喃和N-烯丙酰胺为底物,通过生成金-α-亚氨基卡宾的环丙烷化中间体得到氮杂双环[3.1.0]己烷-2-酮类化合物。
第二类是通过取代环丙烷的衍生反应构建氮杂双环[3.1.0]己烷-2-酮类化合物。比如文献S.Manna,A.P.Antonchick.铜催化的苯乙酮与马来酰亚胺的(2+1)环化:环丙烷的直接合成,化学,国际编辑2015,54,14845-14848是在金属铜作为催化剂的条件下,以N-甲基马来酰亚胺和苯乙酮为底物,通过酮基的烯醇化导致配体交换产生环状的中间体进而直接生成环丙烷衍生物,即氮杂双环[3.1.0]己烷-2-酮类化合物。
第三类是通过烷基化亚基前体的碱诱导分子内螺环化的方法构建氮杂双环[3.1.0]己烷-2-酮类化合物,比如文献M.Uematsu,D.M.Brody,D.L.Boger.双卡霉素的基于CBI的类似物的五元内酯前药,TetrahedronLett.2015,56,3101-3104。
综上,虽然目前已经有大量文献报道氮杂双环[3.1.0]己烷-2-酮类化合物的合成方法,但是在仔细设计和调整底物的刚性结构或空间位阻以实现结构多功能烯酰胺的合成,实现烯烃的直接C-H键活化酰胺化仍是一个挑战。
发明内容
本发明的目的是提供一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法,通过钯催化剂催化的乙烯基环丙烷甲酰胺分子内酰胺化获得构象受限的氮杂双环[3.1.0]己烷-2-酮类化合物,进一步丰富了这类化合物的合成方法,同时也为工业化筛选提供了更多的候选方法。
为实现上述目的,本发明提供了一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法,反应物为2-乙烯基环丙烷-1-甲酰胺类化合物,反应条件为在O2氛围和碱性条件,在DMF溶剂中以Pd(PPh3)2Cl2为催化剂,一步制得3-氮杂双环[3.1.0]己烷-2-酮类化合物;
该合成方法中的反应方程式为:
其中R1选自4-氯苯基、3-甲氧基苯基、苯基、3-氯苯基、4-溴苯基、甲苯磺酰基中的一种;
R2选自4-甲基苯基、4-叔丁基苯基、4-甲氧基苯基、3-甲氧基苯基、苯基、4-苯甲酸乙酯、甲氧基中的一种。
优选的,碱性条件为无水K2CO3提供的碱性条件。
优选的,反应温度为40~60℃。
更优选的,反应温度为50℃。
优选的,反应物2-乙烯基环丙烷-1-甲酰胺类化合物的合成路线为:
其中R1选自4-氯苯基、3-甲氧基苯基、苯基、3-氯苯基、4-溴苯基中的一种;
R2选自4-甲基苯基、4-叔丁基苯基、4-甲氧基苯基、3-甲氧基苯基、苯基、4-苯甲酸乙酯中的一种。
优选的,反应物2-乙烯基环丙烷-1-甲酰胺类化合物的合成路线为:
优选的,反应物2-乙烯基环丙烷-1-甲酰胺类化合物的合成路线为:
本发明的有益效果:
(1)2-乙烯基环丙烷-1-甲酰胺在Pd(PPh3)2Cl的催化作用下与C=C键和酰胺配位形成钯环,然后经过还原消除反应最终形成氮杂双环[3.1.0]己烷-2-酮类化合物。反应过程操作简单、官能团兼容性好,钯催化剂廉价易得。
(2)反应步骤仅需一步,实验步骤少,技术难度低,易于操作,反应所使用的Pd(PPh3)2Cl2是廉价、易得的化学化工产品,原料易得成本低;
(3)反应能达到很好的催化效果,反应过程简单,避免了使用多步反应的过程,同时也避免了操作复杂,官能团兼容性差的缺点。
下面通过实施例,对本发明的技术方案做进一步的详细描述。
具体实施方式
下面结合实施例,对本发明进一步描述,实施例中所用各种化学品和试剂如无特别说明均为市售购买。
实施例1
反应物1-(4-氯苯基)-N-(对甲苯基)-2-乙烯基环丙烷-1-甲酰胺的制备
步骤(1):在烤干的两颈烧瓶中加入NaH(4.0g,2.0equiv),充换N2三次,向体系中加入干燥的THF(120mL),将体系降至0℃,向体系中缓慢加入对氯苯乙酸甲酯(9.2g,1.0equiv),将体系恢复至室温搅拌10分钟后重新冷却至0℃,向体系中逐滴加入(E)-1,4-二溴-2-丁烯(12.8g,1.2equiv)并将体系移至35℃沙浴锅中反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,向其加入饱和的氯化铵溶液,乙酸乙酯萃取,分离并合并有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-2-乙烯基环丙烷-1-羧酸甲酯(8.0g,67%)。
步骤(2):在100mL圆底烧瓶中加入1-(4-氯苯基)-2-乙烯基环丙烷-1-羧酸甲酯(11mmol,1.0equiv),KOH(3.1g,5.0equiv)和无水乙醇(30mL),加热回流。待反应完成,减压除去乙醇后向体系中加入水和二氯甲烷,摒弃有机相,保留水相;将水相的PH值调至3-1,二氯甲烷萃取,合并有机相,减压除去有机溶剂,得到目标化合物1-(4-氯苯基)-2-乙烯基环丙烷-1-羧酸(2.3g,93%)。
步骤(3):在100mL圆底烧瓶中加入1-(4-氯苯基)-2-乙烯基环丙烷-1-羧酸(10mmol,1.0equiv),氯化亚砜(1.8g,1.5equiv)和二氯甲烷(30mL),室温搅拌5-10分钟,将体系降至0℃,向体系中逐滴加入三乙胺直至无白烟生成,加入对甲苯胺(1.1g,1.0equiv),恢复至室温反应,反应过程用TLC监测。待反应完成,减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-N-(对甲苯基)-2-乙烯基环丙烷-1-甲酰胺(2.9g,94%)。
1-(4-氯苯基)-4-亚甲基-3-(对甲苯基)-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-氯苯基)-N-(对甲苯基)-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-4-亚甲基-3-(对甲苯基)-3-氮杂双环[3.1.0]己烷-2-酮(93mg,60%)。
产物物为白色固体,产率:60%。
1H NMR(400MHz,CDCl3)δ7.45–7.41(m,2H),7.34–7.31(m,2H),7.24(d,J=7.6Hz,2H),7.11–7.08(m,2H),4.38(d,J=1.2Hz,1H),4.16(d,J=0.8Hz,1H),2.83(q,J=4.0Hz,1H),2.37(s,3H),1.67(dd,J=8.0,4.8Hz,1H),1.54(t,J=4.0Hz,1H).
13C NMR(101MHz,CDCl3)δ173.3,146.8,138.1,133.5,133.4,132.0,130.02,130.00,128.7,127.5,86.8,33.7,25.8,23.7,21.2.
实施例2
3-(4-(叔丁基)苯基)-1-(4-氯苯基)-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入N-(4-(叔丁基)苯基)-1-(4-氯苯基)-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到3-(4-(叔丁基)苯基)-1-(4-氯苯基)-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮(81mg,46%)。
产物物为白色固体,产率:46%。
1H NMR(600MHz,CDCl3)δ7.45(t,J=7.8Hz,4H),7.33(d,J=8.4Hz,2H),7.14(d,J=8.4Hz,2H),4.40(s,1H),4.21(s,1H),2.83(dd,J=7.8,3.6Hz,1H),1.68(dd,J=7.8,4.8Hz,1H),1.55(d,J=5.4Hz,1H),1.33(s,9H).
13C NMR(151MHz,CDCl3)δ173.3,151.0,146.7,133.5,133.4,131.9,130.0,128.7,127.1,126.3,87.0,34.7,33.7,31.3,25.8,23.7.
实施例3
1-(4-氯苯基)-3-(4-甲氧基苯基)-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-氯苯基)-N-(4-甲氧基苯基)-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-3-(4-甲氧基苯基)-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮(96mg,59%)
产物物为白色固体,产率:59%。
1H NMR(600MHz,CDCl3)δ7.43(d,J=8.4Hz,2H),7.32(d,J=9.0Hz,2H),7.12(d,J=9.0Hz,2H),6.95(d,J=9.0Hz,2H),4.37(d,J=0.6Hz,1H),4.14(s,1H),3.81(s,3H),2.83(dd,J=7.8,3.6Hz,1H),1.66(dd,J=7.8,4.8Hz,1H),1.53(t,J=4.2Hz,1H).
13C NMR(151MHz,CDCl3)δ173.5,159.2,147.0,133.5,133.4,130.0,128.9,128.7,127.2,114.7,86.8,55.5,33.7,25.7,23.7.
实施例4
1-(4-氯苯基)-3-(3-甲氧基苯基)-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-氯苯基)-N-(3-甲氧基苯基)-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-3-(3-甲氧基苯基)-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮(78mg,48%)。
产物物为白色固体,产率:48%。
1H NMR(600MHz,CDCl3)δ7.44(d,J=8.4Hz,2H),7.35(d,J=8.4Hz,1H),7.33(t,J=4.2Hz,2H),6.91(dd,J=8.4,1.8Hz,1H),6.81(d,J=7.8Hz,1H),6.77(s,1H),4.41(s,1H),4.23(s,1H),3.81(s,3H),2.84(dd,J=7.8,4.2Hz,1H),1.67(dd,J=7.8,4.8Hz,1H),1.55(t,J=4.2Hz,1H).
13C NMR(151MHz,CDCl3)δ173.2,160.3,146.5,135.7,133.5,133.4,130.1,130.0,128.7,119.8,114.1,113.3,87.2,55.4,33.8,25.7,23.6.
实施例5
1-(4-氯苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-氯苯基)-N-苯基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮(97mg,66%)。
产物物为白色固体,产率:66%。
1H NMR(600MHz,DMSO)δ7.51(dd,J=13.8,8.1Hz,5H),7.43(d,J=8.4Hz,2H),7.28(d,J=7.2Hz,2H),4.41(s,1H),3.97(s,1H),3.13(dd,J=7.8,3.6Hz,1H),1.84(dd,J=7.8,4.2Hz,1H),1.67(t,J=3.9Hz,1H).
13C NMR(151MHz,DMSO)δ173.2,147.4,135.2,134.7,132.4,130.9,129.8,128.8,128.65,128.56,86.6,33.7,26.2,23.2.
实施例6
4-(1-(4-氯苯基)-4-亚甲基-2-氧代-3-氮杂双环[3.1.0]己烷-2-酮)苯甲酸乙酯的制备
在10mL的干燥的史莱克管中加入4-(1-(4-氯苯基)-2-乙烯基环丙烷-1-甲酰胺基)苯甲酸乙酯(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到4-(1-(4-氯苯基)-4-亚甲基-2-氧代-3-氮杂双环[3.1.0]己烷-2-酮)苯甲酸乙酯(88mg,48%)。
产物物为白色固体,产率:48%。
1H NMR(600MHz,CDCl3)δ8.13(d,J=8.4Hz,2H),7.42(d,J=8.4Hz,2H),7.34(t,J=9.0Hz,4H),4.46(d,J=1.2Hz,1H),4.39(q,J=7.2Hz,2H),4.26(d,J=1.2Hz,1H),2.86(dd,J=7.8,3.6Hz,1H),1.69(dd,J=7.8,4.8Hz,1H),1.56(t,J=4.2Hz,1H),1.39(t,J=7.2Hz,3H).
13C NMR(151MHz,CDCl3)δ173.0,165.8,145.9,138.8,133.6,133.1,130.7,130.1,129.9,128.8,127.4,87.5,61.2,34.0,25.7,23.5,14.3.
实施例7
1-(4-氯苯基)-N-甲氧基-2-乙烯基环丙烷-1-甲酰胺的制备
将酸(2.78mmol)、DCM(15mL)和2滴DMF装入干燥的圆底烧瓶中,然后在0℃下逐滴加入草酰氯(0.529g,1.5equiv),将所得混合物在室温搅拌3.5小时并减压浓缩。将残余物溶解在EA(20mL)和K2CO3(0.768g,2.0equiv)、MeONH2·HCl(0.278g,1.2equiv)和水(10mL)。将所得混合物在室温搅拌,TLC检测,待反应完成用乙酸乙酯萃取,有机层依次用饱和的NaHCO3水溶液,盐水洗涤,用无水硫酸钠干燥,过滤并减压浓缩。将粗产物重结晶得到产物1-(4-氯苯基)-N-甲氧基-2-乙烯基环丙烷-1-甲酰胺(0.647g,93%)。
1-(4-氯苯基)-3-甲氧基-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-氯苯基)-N-甲氧基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-氯苯基)-3-甲氧基-4-亚甲基-3-氮杂双环[3.1.0]己烷-2-酮(59mg,47%)。
产物物为白色固体,产率:47%。
1H NMR(400MHz,CDCl3)δ7.37–7.28(m,4H),4.58(s,1H),4.45(s,1H),3.84(s,3H),2.61(dd,J=7.6,4.0Hz,1H),1.61(dd,J=7.6,4.8Hz,1H),1.38(t,J=4.4Hz,1H).
13C NMR(101MHz,CDCl3)δ167.9,140.1,133.7,132.8,129.9,128.8,85.1,62.6,30.3,23.6,22.1.
实施例8
1-(3-甲氧基苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-甲氧基苯基)-N-苯基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(3-甲氧基苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮(76mg,52%)。
产物物为白色固体,产率:52%。
1H NMR(400MHz,CDCl3)δ7.48–7.42(m,2H),7.37–7.33(m,1H),7.32–7.26(m,2H),7.26–7.23(m,2H),6.99–6.93(m,1H),6.91(d,J=8.4Hz,1H),4.33(d,J=0.8Hz,1H),4.14(s,1H),3.88(s,3H),2.50(q,J=4.0Hz,1H),1.83(dd,J=8.0,4.8Hz,1H),1.48(t,J=4.4Hz,1H).
13C NMR(101MHz,CDCl3)δ174.2,159.3,148.0,135.3,130.7,129.4,129.2,128.8,127.85,127.80,127.2,123.9,120.5,110.7,85.8,55.9,32.4,25.8,19.8.
实施例9
4-亚甲基-1,3-二苯基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入N,1-二苯基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到4-亚甲基-1,3-二苯基-3-氮杂双环[3.1.0]己烷-2-酮(64mg,49%)。
产物物为白色固体,产率:49%。
1H NMR(600MHz,CDCl3)δ7.44–7.40(m,2H),7.39–7.35(m,2H),7.31–7.26(m,3H),7.24–7.21(m,1H),7.18–7.15(m,2H),4.32(d,J=1.2Hz,1H),4.10(s,1H),2.77(q,J=4.2Hz,1H),1.65(dd,J=7.8,4.8Hz,1H),1.47(t,J=4.2Hz,1H).
13C NMR(151MHz,CDCl3)δ172.6,145.9,133.8,128.3,127.6,127.5,126.95,126.70,126.5,85.6,33.3,24.7,22.4.
实施例10
1-(3-氯苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(3-氯苯基)-N-苯基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(3-氯苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮(75mg,51%)。
产物物为白色固体,产率:51%。
1H NMR(400MHz,CDCl3)δ7.43–7.37(m,2H),7.37–7.30(m,2H),7.30–7.18(m,3H),7.18–7.14(m,2H),4.34(d,J=1.2Hz,1H),4.12(d,J=1.2Hz,1H),2.79(q,J=3.9Hz,1H),1.64(dd,J=8.0,4.4Hz,1H),1.51(d,J=4.0Hz,1H).
13C NMR(101MHz,CDCl3)δ173.0,146.5,136.9,134.6,134.4,129.8,129.4,128.7,128.1,127.73,127.70,126.8,87.1,33.9,25.9,23.6.
实施例11
1-(4-溴苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入1-(4-溴苯基)-N-苯基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到1-(4-溴苯基)-4-亚甲基-3-苯基-3-氮杂双环[3.1.0]己烷-2-酮(81mg,48%)。
产物物为白色固体,产率:48%。
1H NMR(600MHz,CDCl3)δ7.42–7.38(m,2H),7.39–7.34(m,2H),7.31–7.27(m,3H),7.16–7.13(m,2H),4.32(d,J=1.2Hz,1H),4.11(d,J=1.2Hz,1H),2.76(dd,J=7.8,4.2Hz,1H),1.60(dd,J=7.8,4.8Hz,1H),1.47(t,J=4.2Hz,1H).
13C NMR(101MHz,CDCl3)δ168.3,139.3,137.7,135.2,132.6,132.0,128.9,124.4,122.4,119.8,116.9,38.2,32.4,21.3.
实施例12
N-苯基-1-甲苯磺酰基-2-乙烯基环丙烷-1-甲酰胺的制备
0℃下,在100mL圆底烧瓶中加入无水K2CO3(2.4g,2.0equiv),DMF(40mL)和N-苯基-2-甲苯磺酰乙酰胺(8.8mmol,1.0equiv)),在此温度下搅拌30分钟后逐滴加入(E)-1,4-二溴-2-丁烯(2.26g,1.2equiv),0℃下反应,反应过程用TLC监测。待反应完成往体系中加水,二氯甲烷萃取,待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到N-苯基-1-甲苯磺酰基-2-乙烯基环丙烷-1-甲酰胺(1.3g,43%)。
4-亚甲基-3-苯基-1-甲苯磺酰基-3-氮杂双环[3.1.0]己烷-2-酮的制备
在10mL的干燥的史莱克管中加入N-苯基-1-甲苯磺酰基-2-乙烯基环丙烷-1-甲酰胺(156mg,0.5mmol),无水K2CO3(69mg,1.0equiv),Pd(PPh3)2Cl2(35mg,5mol%),充换O2三次,然后加入无水的DMF(2mL),在沙浴锅中加热至50℃反应,反应过程用TLC监测。待反应结束后将体系自然冷却至室温,用二氯甲烷稀释体系,然后加入水,分离有机相;待萃取完成,合并有机相并用水,饱和氯化钠溶液洗涤有机相;无水硫酸钠干燥,通过减压除去有机溶剂,硅胶拌样,以石油醚和乙酸乙酯为淋洗液过柱得到4-亚甲基-3-苯基-1-甲苯磺酰基-3-氮杂双环[3.1.0]己烷-2-酮(27mg,16%)。
产物为白色固体,产率:16%。
1H NMR(600MHz,CDCl3)δ7.99(d,J=8.4Hz,2H),7.42(t,J=7.8Hz,2H),7.36(d,J=7.8Hz,3H),7.14–7.11(m,2H),4.50(d,J=1.8Hz,1H),4.24(d,J=1.8Hz,1H),3.49(dd,J=8.6,4.8Hz,1H),2.44(s,3H),2.17(dd,J=9.0,5.4Hz,1H),1.56(d,J=4.8Hz,1H).
13C NMR(101MHz,CDCl3)δ165.9,145.2,143.0,136.0,133.6,129.6,129.5,129.2,128.6,127.5,89.9,47.9,26.5,22.3,21.7.
最后应说明的是:以上实施例仅用以说明本发明的技术方案而非对其进行限制,尽管参照较佳实施例对本发明进行了详细的说明,本领域的普通技术人员应当理解:其依然可以对本发明的技术方案进行修改或者等同替换,而这些修改或者等同替换亦不能使修改后的技术方案脱离本发明技术方案的精神和范围。
Claims (4)
1.一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法,其特征在于:反应物为2-乙烯基环丙烷-1-甲酰胺类化合物,反应条件为在O2氛围和碱性条件,在DMF溶剂中以Pd(PPh3)2Cl2为催化剂,一步制得3-氮杂双环[3.1.0]己烷-2-酮类化合物;
该合成方法中的反应方程式为:
;
其中R1选自4-氯苯基、3-甲氧基苯基、苯基、3-氯苯基、4-溴苯基、甲苯磺酰基中的一种;
R2选自4-甲基苯基、4-叔丁基苯基、4-甲氧基苯基、3-甲氧基苯基、苯基、4-苯甲酸乙酯基、甲氧基中的一种。
2.根据权利要求1所述的一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法,其特征在于,反应物2-乙烯基环丙烷-1-甲酰胺类化合物选自1a,1a的合成路线为:
;
其中R1选自4-氯苯基、3-甲氧基苯基、苯基、3-氯苯基、4-溴苯基中的一种;
R2选自4-甲基苯基、4-叔丁基苯基、4-甲氧基苯基、3-甲氧基苯基、苯基、4-苯甲酸乙酯基中的一种。
3.根据权利要求1所述的一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法,其特征在于,反应物2-乙烯基环丙烷-1-甲酰胺类化合物选自1b,1b的合成路线为:
。
4.根据权利要求1所述的一种合成氮杂双环[3.1.0]己烷-2-酮类化合物的方法,其特征在于,反应物2-乙烯基环丙烷-1-甲酰胺类化合物选自1c,1c的合成路线为:
。
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