A new stereospecific cross-coupling by the palladium-catalyzed reaction of 1-alkenylboranes with 1-alkenyl or 1-alkynyl halides
作者:Norio Miyaura、Kinji Yamada、Akira Suzuki
DOI:10.1016/s0040-4039(01)95429-2
日期:1979.1
3,2-benzodioxaboroles readily obtainable via hydroboration of 1-alkynes react with 1-alkenyl halides or 1-alkynyl halides in the presence of a catalytic amount of tetrakis(triphenylphosphine)palladium and base to give corresponding conjugated (E)-dienes or (E)-enynes with high regio- and stereospecificity in good yields, respectively.
易于通过1-炔烃的硼氢化而获得的代表性的(E)-1-烯基二甲基戊二烯酮和(E)-1-烯基-1,3,2-苯并二恶唑硼烷在催化剂存在下与1-烯基卤化物或1-炔基卤化物反应量的四(三苯基膦)钯和碱,分别以良好的产率得到相应的具有高区域和立体特异性的共轭(E)-二烯或(E)-烯炔。