2-(ALKOXY OR ARYLOXY CARBONYL)-4-METHYL-6-(2,6,6-TRIMETHYLCYCLOHEX-1- ENYL)HEX-2-ENOIC ACID COMPOUNDS, ITS PREPARATION AND USE

摘要

Compounds of the formula 1;;wherein, R is hydrogen, alkyl or substituted alkyl, aryl or substituted aryl, are useful intermediates in the synthesis of fragrance ingredients such as Ambrox 2;

主权项

1. A method for the preparation of an ester of formula 4 comprising forming said ester by decarboxylation of the compound of formula 1 wherein R is alkyl or substituted alkyl, aryl or substituted aryl.