A Fully Synthetic Route to the Neurotrophic Illicinones: Syntheses of Tricycloillicinone and Bicycloillicinone Aldehyde
作者:Thomas R. R. Pettus、Masayuki Inoue、Xiao-Tao Chen、Samuel J. Danishefsky
DOI:10.1021/ja000521m
日期:2000.7.1
The tricycloillicinone synthesis employed a novel strategy to control the regiochemistry of two ortho Claisenrearrangements. A sulfonyl group introduced at C2 of an allyl group effectively suppressed its unwanted rearrangement to the para position (23 → 24). Subsequently, ortho Claisenrearrangement was conducted using a reverse O-prenylated derivative 31 to furnish the de...