THE WITTIG-TYPE AND THE CLAISEN REARRANGEMENT OF ALLYLIC 3-PHENYLTHLO-2-PROPEN-1-YL ETHERS
作者:Makoto Wada、Akira Fukui、Hideo Nakamura、Hisashi Takei
DOI:10.1246/cl.1977.557
日期:1977.5.5
Allylic 3-phenylthio-2-propen-1-yl ethers(3) underwent [2,3]-sigmatropic (Wittig-type) rearrangement by treatment of n-butyllithium in tetrahydrofuran (THF) at −40 ∼ −50°C to give the corresponding allylic alcohols (7). On the other hand, the allylic ethers 3 were treated with potassium tert-but oxide in tert-butyl alcohol-N,N-dimethylformamide (DMF) at room temperature to give the corresponding allylic
烯丙基 3-苯硫基-2-丙烯-1-基醚 (3) 通过在四氢呋喃 (THF) 中在 -40 ∼ -50°C 下处理正丁基锂而发生 [2,3]-σ 型(Wittig 型)重排,得到得到相应的烯丙醇 (7)。另一方面,烯丙基醚3在室温下用叔丁醇-N,N-二甲基甲酰胺(DMF)中的叔丁醇钾处理,得到相应的烯丙基烯醇醚(12),其异构化为相应的通过克莱森重排在二甲苯中加热生成醛 (13)。