DE2248525A1 - Verfahren zur decarboxylierung von ortho- oder para-hydroxyarylcarbonsaeuren - Google Patents

Verfahren zur decarboxylierung von ortho- oder para-hydroxyarylcarbonsaeuren

Info

Publication number
DE2248525A1
DE2248525A1 DE19722248525 DE2248525A DE2248525A1 DE 2248525 A1 DE2248525 A1 DE 2248525A1 DE 19722248525 DE19722248525 DE 19722248525 DE 2248525 A DE2248525 A DE 2248525A DE 2248525 A1 DE2248525 A1 DE 2248525A1
Authority
DE
Germany
Prior art keywords
acid
alkyl
mixture
vehicle
hydrogen
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE19722248525
Other languages
German (de)
English (en)
Inventor
John B Hall
Lekhu Kewalram Lala
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
International Flavors and Fragrances Inc
Original Assignee
International Flavors and Fragrances Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by International Flavors and Fragrances Inc filed Critical International Flavors and Fragrances Inc
Publication of DE2248525A1 publication Critical patent/DE2248525A1/de
Pending legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/50Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions decreasing the number of carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C37/00Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring
    • C07C37/11Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01Preparation of ethers
    • C07C41/18Preparation of ethers by reactions not forming ether-oxygen bonds
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C41/00Preparation of ethers; Preparation of compounds having groups, groups or groups
    • C07C41/01Preparation of ethers
    • C07C41/18Preparation of ethers by reactions not forming ether-oxygen bonds
    • C07C41/30Preparation of ethers by reactions not forming ether-oxygen bonds by increasing the number of carbon atoms, e.g. by oligomerisation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D317/00Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms
    • C07D317/08Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3
    • C07D317/44Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D317/46Heterocyclic compounds containing five-membered rings having two oxygen atoms as the only ring hetero atoms having the hetero atoms in positions 1 and 3 ortho- or peri-condensed with carbocyclic rings or ring systems condensed with one six-membered ring
    • C07D317/48Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring
    • C07D317/62Methylenedioxybenzenes or hydrogenated methylenedioxybenzenes, unsubstituted on the hetero ring with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to atoms of the carbocyclic ring
    • C07D317/64Oxygen atoms

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE19722248525 1971-10-12 1972-10-03 Verfahren zur decarboxylierung von ortho- oder para-hydroxyarylcarbonsaeuren Pending DE2248525A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US18845571A 1971-10-12 1971-10-12

Publications (1)

Publication Number Publication Date
DE2248525A1 true DE2248525A1 (de) 1973-04-19

Family

ID=22693229

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19722248525 Pending DE2248525A1 (de) 1971-10-12 1972-10-03 Verfahren zur decarboxylierung von ortho- oder para-hydroxyarylcarbonsaeuren

Country Status (8)

Country Link
JP (1) JPS4848431A (xx)
AU (1) AU4712972A (xx)
BE (1) BE789996A (xx)
BR (1) BR7207066D0 (xx)
DE (1) DE2248525A1 (xx)
FR (1) FR2156222A1 (xx)
IT (1) IT1050214B (xx)
NL (1) NL7213842A (xx)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637923A1 (de) * 1976-08-23 1978-03-02 Maruzen Oil Co Ltd Verfahren zur reinigung von rohem vinylphenol
WO2020114927A1 (de) * 2018-12-07 2020-06-11 Covestro Deutschland Ag Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysators

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4316995A (en) 1981-02-05 1982-02-23 International Flavors & Fragrances Inc. Process for preparing vinyl phenol
JP4802343B2 (ja) * 2005-02-22 2011-10-26 和歌山県 スチレン誘導体の製造方法
JP6008201B2 (ja) * 2013-05-10 2016-10-19 東レ・ファインケミカル株式会社 スチレン誘導体の製造方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2637923A1 (de) * 1976-08-23 1978-03-02 Maruzen Oil Co Ltd Verfahren zur reinigung von rohem vinylphenol
WO2020114927A1 (de) * 2018-12-07 2020-06-11 Covestro Deutschland Ag Verfahren zur herstellung einer hydroxyverbindung durch decarboxylierung in abwesenheit eines katalysators
US11420918B2 (en) 2018-12-07 2022-08-23 Covestro Intellectual Property Gmbh & Co. Kg Method for producing a hydroxy compound by decarboxylation in the absence of a catalyst

Also Published As

Publication number Publication date
IT1050214B (it) 1981-03-10
NL7213842A (xx) 1973-04-16
BE789996A (fr) 1973-04-12
FR2156222A1 (en) 1973-05-25
BR7207066D0 (pt) 1973-08-30
JPS4848431A (xx) 1973-07-09
AU4712972A (en) 1974-04-04

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