Preparation of alkyl (alkoxycarbonylcyclohexyl) cyclohexenecarbo

Details Preparation of alkyl (alkoxycarbonylcyclohexyl) cyclohexenecarbo Preparation of alkyl (alkoxycarbonylcyclohexyl) cyclohexenecarbo

1991-09-13

1993-03-16

Killos, Paul J.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

560 76, 560 96, C07C 6974, C07C 6976, C07C 6700

Patent

active

051946696

ABSTRACT:
Disclosed are processes for the preparation of alkyl (alkoxycarbonylcyclohexyl)cyclohexenecarboxylates by the dimerization of alkyl 3-cyclohexenecarboxylates and the dehydrogenation of the alkyl (alkoxycarbonylcyclohexyl) cyclohexenecarboxylates to dialkyl biphenyldicarboxylates. The processes are especially useful for the preparation of dialkyl 4,4'-biphenyldicarboxylates which are intermediates in the preparation of high performance polyesters.

REFERENCES:
patent: 3383402 (1968-05-01), Yunick
patent: 3857874 (1974-12-01), Ichibawa

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