[反应-见正文]描述了不寻常的虹吸体代谢产物(-)-baconipyrone C(3)的不对称全合成。关键步骤包括用于制备羧酸17的锡(II)介导的醇醛偶联剂和导致醇8的两种不同的硼介导的醇醛添加剂加成反应。使用改良的Yamaguchi条件形成酯形成24,导致PMB脱保护为(-) -baconipyrone C.
ERYTHRO-SELECTIVE ALDOL CONDENSATION VIA ENAMINOSILANES
作者:Wataru Ando、Hidetoshi Tsumaki
DOI:10.1246/cl.1983.1409
日期:1983.9.5
In the presence of BF3·OEt2, enaminosilanes derived from acyclic and cyclic ketones have been shown to undergo erythro selective kinetic aldolcondensation.