GB1254183A - A process for the selective decarbonylation of nuclear-chlorinated di- and tri-formyl benzenes - Google Patents

A process for the selective decarbonylation of nuclear-chlorinated di- and tri-formyl benzenes

Info

Publication number
GB1254183A
GB1254183A GB08727/69A GB1872769A GB1254183A GB 1254183 A GB1254183 A GB 1254183A GB 08727/69 A GB08727/69 A GB 08727/69A GB 1872769 A GB1872769 A GB 1872769A GB 1254183 A GB1254183 A GB 1254183A
Authority
GB
United Kingdom
Prior art keywords
decarbonylation
formyl
tri
benzenes
chlorinated
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.)
Expired
Application number
GB08727/69A
Inventor
Ernst Dr Roos
Klaus Dr Wagner
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.)
Bayer AG
Original Assignee
Bayer AG
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 Bayer AG filed Critical Bayer AG
Publication of GB1254183A publication Critical patent/GB1254183A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C47/00—Compounds having —CHO groups
    • C07C47/52—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings
    • C07C47/55—Compounds having —CHO groups bound to carbon atoms of six—membered aromatic rings containing halogen
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
    • C07C45/67—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton
    • C07C45/673—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by isomerisation; by change of size of the carbon skeleton by change of size of the carbon skeleton

Abstract

1,254,183. Decarbonylation of nuclearchlorinated di- and tri-formyl-benzenes. FARBENFABRIKEN BAYER A.G. 11 April, 1969 [11 May, 1968] No. 18727/69. Heading C2C. A process for the selective decarbonylation of nuclear-chlorinated di- and tri-formyl benzenes comprises splitting off one carbonyl group from a tetrachlorodiformyl benzene, and one or two carbonyl groups from a trichlorotriformylbenzene by reaction with a substantially stoichiometric quantity of an alkali metal hydroxide or an alkaline earth metal hydroxide. The invention also comprises the following compounds which have been prepared by this process:-
GB08727/69A 1968-05-11 1969-04-11 A process for the selective decarbonylation of nuclear-chlorinated di- and tri-formyl benzenes Expired GB1254183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681768419 DE1768419A1 (en) 1968-05-11 1968-05-11 Process for the selective decarbonylation of nuclear chlorinated di- and tri-formylbenzenes

Publications (1)

Publication Number Publication Date
GB1254183A true GB1254183A (en) 1971-11-17

Family

ID=5699739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08727/69A Expired GB1254183A (en) 1968-05-11 1969-04-11 A process for the selective decarbonylation of nuclear-chlorinated di- and tri-formyl benzenes

Country Status (5)

Country Link
BE (1) BE732759A (en)
DE (1) DE1768419A1 (en)
FR (1) FR2008329A1 (en)
GB (1) GB1254183A (en)
NL (1) NL6907161A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0125803A3 (en) * 1983-04-27 1987-01-21 FISONS plc Pharmaceutically active dihydropyridines

Also Published As

Publication number Publication date
BE732759A (en) 1969-11-10
DE1768419A1 (en) 1971-12-30
NL6907161A (en) 1969-11-13
FR2008329A1 (en) 1970-01-16

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