Allylsilane-based annulations. Direct stereoselective syntheses of (.+-.)-graveolide and (.+-.)-aromaticin
作者:George Majetich、Jee Seop Song、Alistair J. Leigh、Stephen M. Condon
DOI:10.1021/jo00057a012
日期:1993.2
An allylsilane-based annulation was used to construct a functionalized perhydroazulene. The C(1), C(5), and C(10) stereocenters, characteristic of the helenanolides, were established using a reductive alkylation strategy. Stereoselective syntheses of the pseudoguaianolides graveolide and aromaticin were achieved.