0価ルテニウム錯体による置換アルケンおよびジエン類の触媒的鎖状カップリング反応 : 酸化的カップリング機構による化学,位置およびジアステレオ選択的炭素-炭素結合形成反応

概要

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A series of catalytic linear dimerizations of substituted alkenes and dienes are promoted by zero-valent ruthenium complexes. These reactions are considered to proceed by an oxidative coupling mechanism because some key intermediates such as a ruthenacyclopentane have been isolated. The key for the reaction is 4π and 2π coordinations in a 6-electron coordination site on highly Lewis basic Ru (0), where chemo-, prochiral and regio-selective coordination and coupling reaction of substrates are taking place to give the linear dimers.