Siloxyallenes revisited. A useful functional intermediate for the synthesis of (Z)-β-branched Morita–Baylis–Hillman type adducts and (Z)-chalcones
作者:Kazuhiro Yoshizawa、Takayuki Shioiri
DOI:10.1016/j.tet.2007.02.025
日期:2007.7
Siloxyallenes proved to be a useful functional intermediate in the preparation of (Z)-β-branched Morita–Baylis–Hillman type adducts by the reaction of aldehydes with silylacetylenes or siloxypropynes. Various (Z)-chalcones were stereoselectively synthesized from siloxypropynes via siloxyallenes.
通过醛与甲硅烷基乙炔或甲硅烷氧基丙炔的反应,甲硅烷氧基烯被证明是制备(Z)-β支链的森田-贝利斯-希尔曼型加合物的有用功能中间体。从甲硅烷氧基丙炔经由甲硅烷氧基丙烯立体选择性地合成了各种(Z)-查耳酮。