Aromatics to Diquinanes: An
Expeditious Synthesis of Tetramethylbicyclo[3.3.0]octane
Framework of Ptychanolide
作者:Vishwakarma Singh、Girish Chandra、Shaikh Mobin
DOI:10.1055/s-0028-1087275
日期:——
An expeditious route to methyl-7-oxo-1,4,5,8-tetra- methylbicyclo(3.3.0)octane-3-carboxylate from a simple aromatic precursor is described. Oxidative dearomatization of 2-hydroxy- methyl-3,4,6-trimethylphenol into spiroepoxycyclohexa-2,4-di- enone, its cycloaddition and triplet-sensitized 1,2-acyl shift, and stereochemical inversion are the key features of our methodology.
描述了从简单的芳族前体制备 7-氧-1,4,5,8-四甲基双环 (3.3.0) 辛烷-3-羧酸甲酯的快速途径。将 2-羟基-甲基-3,4,6-三甲基苯酚氧化脱芳构化为螺环环氧环己-2,4-二烯酮、其环加成和三线态敏化 1,2-酰基转移和立体化学转化是我们方法的关键特征.