First Comprehensive Bakkane Approach: Stereoselective and Efficient Dichloroketene-Based Total Syntheses of (±)- and (−)-9-Acetoxyfukinanolide, (±)- and (+)-Bakkenolide A, (−)-Bakkenolides III, B, C, H, L, V, and X, (±)- and (−)-Homogynolide A, (±)-Homogynolide B, and (±)-Palmosalide C
作者:Timothy J. Brocksom、Fernando Coelho、Jean-Pierre Deprés、Andrew E. Greene、Marco E. Freire de Lima、Olivier Hamelin、Benoît Hartmann、Alice M. Kanazawa、Yanyun Wang
DOI:10.1021/ja0208456
日期:2002.12.1
dichloroketene with dimethylcyclohexenes has been used as the key reaction in an efficient, general approach to the bakkanes. New methods and methodologies that have been developed in this work include spiro beta-methylene-gamma-butyrolactonizations, a vicinal dicarboxylation, an angelic ester preparation, a transesterification, an epoxy ketone double reduction, and a retro aldol-aldol approach to low-energy aldol
二氯乙烯酮与二甲基环己烯的环加成反应已被用作一种有效、通用的巴卡内酯方法中的关键反应。在这项工作中开发的新方法和方法包括螺β-亚甲基-γ-丁内酯化、邻位二羧化、当归酯制备、酯交换、环氧酮双还原和低能量的逆羟醛-羟醛方法醛醇异构体。