Stereoselective synthesis of tetrahydropyran–tetrahydrofuran (THP–THF) core of (+)-muconin via Prins cyclization
作者:J.S. Yadav、U.V. Subba Reddy、B.V. Subba Reddy
DOI:10.1016/j.tetlet.2014.02.096
日期:2014.7
A stereoselective synthesis of tetrahydropyran–tetrahydrofuran (THP–THF) core 2 of (+)-muconin (1) has been achieved using Prins cyclization as a key step to construct tetrahydropyran moiety. Other important transformations such as Wittig olefination, Sharpless epoxidation, regio-, and stereoselective exo-cyclization of the epoxy alcohol, titanocene induced regioselective deoxygenation of 2,3-epoxy
使用Prins环化作为构建四氢吡喃部分的关键步骤,已经实现了(+)-粘蛋白(1)的四氢吡喃-四氢呋喃(THP-THF)核2的立体选择性合成。如Wittig烯化,环氧化夏普勒斯,区域选择性,立体选择性和其它重要转变外型环氧醇的-cyclization,2,3-环氧醇的二茂钛诱导区域选择性脱氧,格氏反应,和Barton-McCombie反应被成功地用于实现合成THP-THF核2。