The New Method for Introduction of an Allyl Group into the Angular Position of 2-(TBS-oxymethyl)-2,3,4,6,7,8-hexahydro-1-benzopyran-5-one and Its Application to Chiral Wieland-Miescher Type Compound Synthesis
作者:Kou Hiroya、Taisuke Takahashi、Katsunori Shimomae、Takao Sakamoto
DOI:10.1248/cpb.53.207
日期:——
group into the angular position of 2-(TBS-oxymethyl)-2,3,4,6,7,8-hexahydro-1-benzopyran-5-one was accomplished using Birch reduction and an enolate trapping reaction. It was determined that the allyl group was introduced via an unexpected conformation-flipped from the initially formed one. Two diastereomeric Wieland-Miescher type compounds, having the allyl group at the angular position, were synthesized
使用桦木还原和烯醇盐捕集将烯丙基立体选择性地引入2-(TBS-氧甲基)-2,3,4,6,7,8-六氢-1-苯并吡喃-5-酮的角位置反应。确定烯丙基是通过意外的构象从最初形成的构象中引入的而引入的。合成了在角位置具有烯丙基的两种非对映异构的Wieland-Miescher型化合物,其为光学纯形式。