General Methodologies Toward cis-Fused Quinone Sesquiterpenoids. Enantiospecific Synthesis of the epi-Ilimaquinone Core Featuring Sc-Catalyzed Ring Expansion
作者:Hilan Kaplan、Victor Rendina、Jason Kingsbury
DOI:10.3390/molecules22071041
日期:——
A stereocontrolled approach to the cis-decalin framework of clerodane diterpenes and biologically active quinonesesquiterpenes is reported. Starting from an inexpensive optically pure tetrahydroindanone, Birch reductive alkylation builds two new contiguous chiral centers—one of which is quaternary and all-carbon-substituted. Also featured is a highly regioselective diazoalkane—carbonyl homologation