Natural and synthetic materials with the insect hormone activity. XII. Synthesis of methyl 3, 7, 11, 11-tetramethyl-2-dodecenoate and some of its homologues

M Romaňuk, L Streinz, F Šorm

Index: Romanuk,M. et al. Collection of Czechoslovak Chemical Communications, 1972 , vol. 37, p. 1755 - 1761

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Citation Number: 3

Abstract

The use of 3, 3-dimethylbutanoic acid (XV)(reUB) instead of homologue VII permitted us to prepare by the same reaction. sequence shorter homologues of both esters VI and XlV. From acid XV and half-ester IX we thus obtained 3, 6, 6-trimethylheptanoic acid (XVI) which on Kolbe reaction with acid XI gave methyl 3, 7, 10, 10-tetramethyl-2-undecenoate (XVII). In a similar manner 6, 6-dimethyl-3-ethylheptanoic acid (XVIII), obtained from acid XV and ...