(+)-Multifidene 1 and (+)-Viridiene 2, the major constituents of some brown algae pheromones, were synthesized in five steps from racemic bicycloheptenone 3via a novel microbiological Baeyer-Villiger oxidation.performed using the fungi Cunninghamella echinulata.
(+)-Multifidence ((+)-1) has been synthesized starting from (R)-(cyclopent-2-enyl)methanol ((+)-2) via its chloroformate 4, Co-mediated radical cyclization reaction to the lactone (+)-6, and introduction of the olefinic side chains.
Stereoselective syntheses of "multifidenes" and related structures. Contribution to the synthetic chemistry of cis-disubstituted alken-1-ylcyclopentenes
作者:Wilhelm Boland、Lothar Jaenicke
DOI:10.1021/jo00394a016
日期:1979.12
BOLAND, WILHELM;KONIG, WILFRIED A.;KREBBER, RALPH;MULLER, DIETER G., HELV. CHIM. ACTA, 72,(1989) N, C. 1288-1292
作者:BOLAND, WILHELM、KONIG, WILFRIED A.、KREBBER, RALPH、MULLER, DIETER G.