Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1991-02-01
1991-12-10
Reamer, James H.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
560259, 568378, 558260, 558270, C07C 6978
Patent
active
050720198
ABSTRACT:
A method for the manufacture of the four geometric isomers of 4-(2-butenyl)idene)-3,5,5-trimethy-2-cyclohexen-1-one is provided. The process comprises pyrolyzing a compound of the formula ##STR1## wherein R represents lower-alkyl-oxycarbonyl, aryl-oxycarbonyl, or, preferably, lower-alkanoyl, benzoyl or substituted benzoyl.
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Helmlinger Daniel
Kienzle Frank
Widmer Erich
Givaudan Corporation
Reamer James H.
Tavares Robert F.
Vag Linda A.
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