作者:Naoki Miyakoshi、Daisuke Aburano、Chisato Mukai
DOI:10.1021/jo050822k
日期:2005.7.1
A highly stereoselective method for constructing a (2E)-methoxymethylidene-1,6-dioxaspiro[4.5]decane skeleton has been developed on the basis of the palladium(II)-catalyzed ring-closing reaction of the 3,4-dioxygenated-9-hydroxy-1-nonyn-5-one derivatives as a crucial step. The newly developed procedures could be successfully applied to the first total synthesis of five diacetylenic spiroacetal enol
基于钯(II)催化的3,4-二加氧-环己基的闭环反应,开发了一种高度立体选择性的构建(2 E)-甲氧基亚甲基-1,6-dioxaspiro [4.5]癸烷骨架的方法。 9-羟基-1-nonyn-5-one衍生物是至关重要的步骤。新开发的程序可以成功地用于从酒石酸(R,R)-或(S,S)-二乙基酒石酸酯开始的五种二乙炔基螺缩醛烯醇醚天然产物的首次全合成。