CN1944447A - Synthetic method for metal porphyrin - Google Patents

Synthetic method for metal porphyrin Download PDF

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CN1944447A
CN1944447A CN 200610114078 CN200610114078A CN1944447A CN 1944447 A CN1944447 A CN 1944447A CN 200610114078 CN200610114078 CN 200610114078 CN 200610114078 A CN200610114078 A CN 200610114078A CN 1944447 A CN1944447 A CN 1944447A
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straight chain
chain fatty
metalloporphyrin
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synthetic method
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佘远斌
孙志成
张天慧
王兰芝
钟儒刚
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Beijing University of Technology
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Beijing University of Technology
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Abstract

The present invention is method of synthesizing metalloporphyrin. Into the mixed solvent comprising two kinds of C1-C8 straight chain fatty acid and nitrobenzene or nitrobenzene derivative, substituted benzaldehyde and pyrrole and soluble transition metal salt are added and reacted through heating reflux for 0.5-1 hr to obtain metalloporphyrin in one reaction step. In the reaction system, the weight ratio between two kinds of straight chain fatty acid is 10-85 %, and the weight fraction of nitrobenzene or nitrobenzene derivative is 0-25 %. Compared with available technology, the present invention has the advantages of capacity of synthesizing several kinds of metalloporphyrin without need of soluble zinc salt, short reaction period and high yield up to 40-60 %.

Description

A kind of synthetic method of metalloporphyrin
Technical field
The present invention relates to a kind of synthetic method of metalloporphyrin.
Background technology
Metalloporphyrin has particular structure, superior physics, chemistry and optical signature, makes it all have very wide application prospect in fields such as biomimetic chemistry, materials chemistry, opto-electronic conversion, pharmaceutical chemistry, analytical chemistry, organic chemistry.The method of at present synthetic metalloporphyrin mainly is a two-step approach, promptly earlier pyrroles and the condensation of (replacement) phenyl aldehyde is generated porphyrin, and porphyrin and reacting metal salt generate metalloporphyrin then.Chinese patent CN 1238355C (Granted publication day: on January 25th, 2006) disclose a kind of synthetic method of metalloporphyrin, this method also is to adopt two-step approach synthetic, at first in organic solvent, add pyrroles, aromatic aldehyde and soluble zinc salt, obtain the mixture of aryl porphines and zinc aryl-porphyrin, add solubility metal target salt again and obtain the corresponding metal porphyrin.The problem that this method exists is: the organic solvent that (1) adds is gone up substantially and is single solvent (seeing embodiment 1~6 and 8~10); (2) adopt two-step approach synthetic; (3) need to add zinc salt as template center; (4) yield only is 20~40%.
Summary of the invention
The object of the present invention is to provide a kind of synthetic method of metalloporphyrin, this method adopts the mixed solvent of two kinds of organic acids and a kind of nitro-compound to replace single solvent, the one-step synthesis metalloporphyrin, and yield can reach more than 40%.
The synthetic method of a kind of metalloporphyrin provided by the present invention may further comprise the steps: by C 1~C 8Add mol ratio in the mixed solvent that two kinds of different straight chain fatty acids and oil of mirbane or nitrobenzene derivative are formed and be 1: 1~3: 1~8 pyrroles, substituted benzaldehyde and soluble transition metal salt, pyrroles's concentration is 10 in the reaction system -2~1mol/L, reflux 0.5~1h, cooling obtains the metalloporphyrin shown in general formula (I).
The weight percent of two kinds of different straight chain fatty acids mentioned above is 10~85%, and is preferred 20~70%, and the weight percent of oil of mirbane or nitrobenzene derivative is 0~25%.
Two kinds of preferred C of different straight chain fatty acids mentioned above 1~C 6Straight chain fatty acid, preferred especially C 1~C 4Straight chain fatty acid, C most preferably 2~C 3Straight chain fatty acid.
Figure A20061011407800041
General formula (I)
In the formula, R 1During=H, R 2=H, NO 2, Cl, CH 3, OCH 3Or OH; R 2During=H, R 1=H, NO 2, Cl, CH 3, OCH 3Or OH; M=Fe, Co, Mn, Cu or Zn.
Soluble transition metal salt mentioned above is the muriate or the acetate of iron, cobalt, manganese, copper, zinc.
At present nearly all chemical research personnel think that to influence metalloporphyrin synthetic factor not only a lot, and the side reaction in the reaction process is also many, and many by products are still unconfirmed, has only the process of using single solvent could control reaction well, and single solvent helps the separation and the purification of product, therefore all be under the prerequisite of single solvent, to improve the method for synthetic metalloporphyrin up to now by changing conditions such as solvent, catalyzer, in the hope of improving the yield of porphyrin, but produce little effect, its maximum yield is no more than 40%.Because during the metalloporphyrin of synthetic different substituents, reaction pair acidity requires different with polarity of solvent and solvability, and the different solubility of by product in the solvent of different acidity, and the acidity of single solvent, polarity and solvability are all non-adjustable, obviously, single solvent can not satisfy metalloporphyrin synthetic diversity.Therefore, the present invention adopts mixed solvent to replace single solvent, has synthesized the metalloporphyrin of a series of different substituents, and yield all is greatly improved.
Adopt the synthetic metalloporphyrin of mixed solvent to have the advantage of the following aspects: (1) mixing acid be solvent be again catalyzer.When a host of facts had proved no acid catalysis, this reaction was difficult to carry out.(2) use the mixing acid solvent can adjust acidity and polarity of solvent to a great extent.Because the requirement to acidity when different substituted benzaldehydes participation porphyrin is synthetic is also different.(3) the proportioning difference of each component in the mixed solvent, its pH value scope difference can satisfy the different requirements of this reaction pair acidity.Experiment shows, selects pK for use aAt the acid as catalyst of 2.0~4.0 scopes, productive rate is higher.(4) in the porphyrin building-up process, the boiling point of solvent is also influential to reaction.The synthetic of metalloporphyrin should carry out under gentle as far as possible condition, and elevated temperature will cause high-molecular weight porphyrin synthesising by-product to increase.The boiling point of mixed solvent is all lower, and the boiling range difference of the mixed solution of its different proportionings makes temperature of reaction be easy to control, has also reduced pyrroles's autohemagglutination simultaneously.(5) the reaction needed oxygenant of generation metalloporphyrin.When adopting single solvent, oxygenant is airborne oxygen, and effect is bad, and the oil of mirbane or derivatives thereof in the mixed solvent is a kind of good oxygenant, helps the synthetic of porphyrin and metalloporphyrin.In addition, the adding of oil of mirbane has also improved the solubleness of reactant and by product greatly, makes product be easy to separate, purify.
As everyone knows, metalloporphyrin belongs to macromolecular cpd, and it is synthetic to be subjected to influence of various factors, thereby how to improve its yield be one of synthetic and maximum difficult point of using of metal current porphyrin.And the present invention adopts mixed solvent one-step synthesis metalloporphyrin, the yield of metalloporphyrin is greatly improved, and maximum has reached 58%, and this is the maximum that present this compounds yield reaches, and degree of purity of production also improves a lot, and all tests by ultimate analysis.
The present invention is with substituted benzaldehyde, pyrroles and soluble transition metal salt direct reaction one-step synthesis metalloporphyrin, and step is simple, and reaction only needs one hour.
Embodiment
Embodiment 1
In the 250mL three-necked flask, (three's weight percent is respectively 57%, 20% to add 60mL propionic acid, 20mL glacial acetic acid and 20mL oil of mirbane, 23%) mixed solvent adds 10mmol phenyl aldehyde and 10mmol pyrroles, afterwards again, add the 0.7g manganese acetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting the tetraphenyl manganoporphyrin (is R in the general formula (I) 1=H, R 2=H, M=Mn), drying is weighed, and its yield is 57.6%, is 99.7% through its purity of liquid chromatographic detection.
Embodiment 2
In the 250mL three-necked flask, (three's weight percent is respectively 58%, 20% to add 60mL propionic acid, 20mL glacial acetic acid and 20mL meta-nitrotoluene, 22%) mixed solvent adds 10mmol paranitrobenzaldehyde and 10mmol pyrroles, afterwards again, add the 0.7g Iron diacetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(right-nitrophenyl) iron porphyrins (is R in the general formula (I) 1=NO 2, R 2=H, M=Fe), drying is weighed, and its yield is 41.5%, is 99.8% through its purity of liquid chromatographic detection.
Embodiment 3
In the 250mL three-necked flask, add 70mL n-caproic acid and 30mL formic acid (weight percent of the two is respectively 65%, 35%) mixed solvent, add 10mmol 4-chloro-benzaldehyde and 10mmol pyrroles again, afterwards, add the 0.7g neutralized verdigris, reflux 1h, cooling, add 30mL methyl alcohol, stir standing over night, suction filtration, getting four-(right-chloro-phenyl-) copper porphyrins (is R in the general formula (I) 1=Cl, R 2=H, M=Cu), drying is weighed, and its yield is 53.4%, is 99.9% through its purity of liquid chromatographic detection.
Embodiment 4
In the 250mL three-necked flask, (three's weight percent is respectively 53%, 23% to add 60mL n-caprylic acid, 20mL formic acid and 20mL oil of mirbane, 24%) mixed solvent adds 10mmol p-tolyl aldehyde and 10mmol pyrroles, afterwards again, add the 0.7g manganese acetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(right-aminomethyl phenyl) manganoporphyrins (is R in the general formula (I) 1=CH 3, R 2=H, M=Mn), drying is weighed, and its yield is 50.8%, is 99.8% through its purity of liquid chromatographic detection.
Embodiment 5
In the 250mL three-necked flask, (three's weight percent is respectively 58%, 21% to add 70mL butanic acid, 20mL formic acid and 20mL oil of mirbane, 21%) mixed solvent adds 10mmol p-tolyl aldehyde and 10mmol pyrroles, afterwards again, add the 0.7g manganese acetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(right-p-methoxy-phenyl) manganoporphyrins (is R in the general formula (I) 1=OCH 3, R 2=H, M=Mn), drying is weighed, and its yield is 56.2%, is 99.7% through its purity of liquid chromatographic detection.
Embodiment 6
In the 250mL three-necked flask, add 60mL propionic acid, 20mL glacial acetic acid and 20mL oil of mirbane (three's weight percent is respectively 57%, 20%, 23%) mixed solvent, add 10mmol p-Hydroxybenzaldehyde and 10mmol pyrroles again, afterwards, add the 0.7g zinc chloride, reflux 1h, cooling, standing over night, suction filtration, getting four-(right-hydroxy phenyl) zinc protoporphyrins (is R in the general formula (I) 1=OH, R 2=H, M=Zn), drying is weighed, and its yield is 42.1%, is 99.8% through its purity of liquid chromatographic detection.
Embodiment 7
In the 250mL three-necked flask, (three's weight percent is respectively 28%, 50% to add 30mL propionic acid, 50mL glacial acetic acid and 20mL Ortho Nitro Toluene, 22%) mixed solvent adds 10mmol Ortho Nitro Benzaldehyde and 10mmol pyrroles, afterwards again, add the 0.7g Cobaltous diacetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(o-nitrophenyl) cobalt porphyrins (is R in the general formula (I) 1=H, R 2=NO 2, M=Co), drying is weighed, and its yield is 41.9%, is 99.9% through its purity of liquid chromatographic detection.
Embodiment 8
In the 250mL three-necked flask, (three's weight percent is respectively 39%, 38% to add 40mL propionic acid, 40mL butanic acid and 20mL oil of mirbane, 23%) mixed solvent adds 10mmol o-chlorobenzaldehyde and 10mmol pyrroles, afterwards again, add the 0.7g manganese acetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(neighbour-chloro-phenyl-) manganoporphyrins (is R in the general formula (I) 1=H, R 2=Cl, M=Mn), drying is weighed, and its yield is 49.6%, is 99.8% through its purity of liquid chromatographic detection.
Embodiment 9
In the 250mL three-necked flask, (three's weight percent is respectively 56%, 20% to add 60mL propionic acid, 20mL glacial acetic acid and 25g para-nitrotoluene, 24%) mixed solvent adds 10mmol o-methyl-benzene formaldehyde and 10mmol pyrroles, afterwards again, add the 0.7g Iron diacetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(neighbour-aminomethyl phenyl) iron porphyrins (is R in the general formula (I) 1=H, R 2=CH 3, M=Fe), drying is weighed, and its yield is 44.6%, is 99.7% through its purity of liquid chromatographic detection.
Embodiment 10
In the 250mL three-necked flask, (three's weight percent is respectively 78%, 10% to add 80mL propionic acid, 10mL glacial acetic acid and 10mL oil of mirbane, 12%) mixed solvent adds 10mmol O-methoxy phenyl aldehyde and 10mmol pyrroles, afterwards again, add the 0.7g manganese acetate, reflux 1h, cooling adds 30mL methyl alcohol, stir, standing over night, suction filtration, getting four-(neighbour-p-methoxy-phenyl) manganoporphyrins (is R in the general formula (I) 1=H, R 2=OCH 3, M=Mn), drying is weighed, and its yield is 40.6%, is 99.8% through its purity of liquid chromatographic detection.
Embodiment 11
In the 250mL three-necked flask, add 60mL propionic acid, 20mL formic acid and 20mL oil of mirbane (three's weight percent is respectively 56%, 22%, 22%) mixed solvent, add 10mmol salicylaldhyde and 10mmol pyrroles again, afterwards, add the 0.7g manganese acetate, reflux 1h, cooling, standing over night, suction filtration, getting four-(neighbour-hydroxy phenyl) manganoporphyrins (is R in the general formula (I) 1=H, R 2=OH, M=Mn), drying is weighed, and its yield is 40.8%, is 99.7% through its purity of liquid chromatographic detection.

Claims (7)

1. the synthetic method of a metalloporphyrin is characterized in that may further comprise the steps: by C 1~C 8Add mol ratio in the mixed solvent that two kinds of different straight chain fatty acids and oil of mirbane or nitrobenzene derivative are formed and be 1: 1~3: 1~8 pyrroles, substituted benzaldehyde and soluble transition metal salt, pyrroles's concentration is 10 in the reaction system -2~1mol/L, reflux 0.5~1h, cooling obtains the metalloporphyrin shown in general formula (I),
Figure A2006101140780002C1
General formula (I)
In the general formula (I), R 1During=H, R 2=H, NO 2, Cl, CH 3, OCH 3Or OH; R 2During=H, R 1=H, NO 2, Cl, CH 3, OCH 3Or OH; M=Fe, Co, Mn, Cu or Zn.
2. according to the synthetic method of claim 1, the weight percent of wherein said two kinds of different straight chain fatty acids is 10~85%, and the weight percent of oil of mirbane or nitrobenzene derivative is 0~25%.
3. according to the synthetic method of claim 1 or 2, wherein said two kinds of different straight chain fatty acids are C 1~C 6Straight chain fatty acid.
4. according to the synthetic method of claim 3, wherein said two kinds of different straight chain fatty acids are C 1~C 4Straight chain fatty acid.
5. according to the synthetic method of claim 4, wherein said two kinds of different straight chain fatty acids are C 2~C 3Straight chain fatty acid.
6. according to the synthetic method of claim 1 or 2, the weight percent of wherein said two kinds of different straight chain fatty acids is 20~70%.
7. according to the synthetic method of claim 1 or 2, wherein said nitrobenzene derivative is a nitrotoluene.
CN 200610114078 2006-10-27 2006-10-27 Synthetic method for metal porphyrin Pending CN1944447A (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102993206A (en) * 2012-12-18 2013-03-27 聊城大学 Method for synthesising tetraphenylporphyrin metal complex via one-step process
CN103664966A (en) * 2013-12-23 2014-03-26 北京工业大学 Method for preparing asymmetric 5,15-bis(p-nitrophenyl)-10, 20-diphenyl porphyrin compound
CN103694246B (en) * 2013-12-23 2015-06-17 北京工业大学 Preparation method of A3B type asymmetric porphyrin compounds
CN105949207A (en) * 2016-05-16 2016-09-21 广东工业大学 Preparation method of Meso-tetra(3,4-dihydroxy phenyl) zinc porphyrin
CN111592550A (en) * 2020-06-08 2020-08-28 沅江华龙催化科技有限公司 Method for synthesizing tetraaryl cobalt porphyrin through cyclization and metallization synchronous reaction
CN111592551A (en) * 2020-06-08 2020-08-28 沅江华龙催化科技有限公司 Method for synthesizing copper porphyrin from aromatic aldehyde, pyrrole and copper salt

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102993206A (en) * 2012-12-18 2013-03-27 聊城大学 Method for synthesising tetraphenylporphyrin metal complex via one-step process
CN103664966A (en) * 2013-12-23 2014-03-26 北京工业大学 Method for preparing asymmetric 5,15-bis(p-nitrophenyl)-10, 20-diphenyl porphyrin compound
CN103694246B (en) * 2013-12-23 2015-06-17 北京工业大学 Preparation method of A3B type asymmetric porphyrin compounds
CN105949207A (en) * 2016-05-16 2016-09-21 广东工业大学 Preparation method of Meso-tetra(3,4-dihydroxy phenyl) zinc porphyrin
CN111592550A (en) * 2020-06-08 2020-08-28 沅江华龙催化科技有限公司 Method for synthesizing tetraaryl cobalt porphyrin through cyclization and metallization synchronous reaction
CN111592551A (en) * 2020-06-08 2020-08-28 沅江华龙催化科技有限公司 Method for synthesizing copper porphyrin from aromatic aldehyde, pyrrole and copper salt

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