Preparation of 2-(Tetrahydrofuran-2′-YL)-l,4-Pentadienes From γ-Allenyl Alcohols via Oxymercuration Followed by Palladium(II)-Medlated all Ylation
作者:Robert D. Walkup、Lufeng Guan
DOI:10.1080/00397919208019290
日期:1992.4
Abstract Intramolecular oxymercurations of γ-hydroxy- or γ-silyloxyallenes yielded α-(tetrahydrofuran-2-yl)vinylmercury intermediates which underwent coupling with allylic halides in the presence of palladium(II) chloride. The yields of the resulting 2-(tetrahydrofuran-2′-yl)-1,4-pentadienes diminished when either the vinylmercury compound or the allylic halide was substituted.
摘要 γ-羟基-或γ-甲硅烷氧基丙二烯的分子内氧化汞反应产生α-(四氢呋喃-2-基)乙烯基汞中间体,该中间体在氯化钯(II)存在下与烯丙基卤化物发生偶联。当乙烯基汞化合物或烯丙基卤被取代时,所得 2-(四氢呋喃-2'-基)-1,4-戊二烯的产率降低。