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首页> 外文期刊>Bulletin of the Chemical Society of Japan >Transition metal-catalyzed carbostannylation of alkynes and dienes
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Transition metal-catalyzed carbostannylation of alkynes and dienes

机译:过渡金属催化的炔烃和二烯的羰基化

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摘要

Carbon-tin bonds in alkynyl-, allyl-, acyl-, alkenyl-, and arylstannanes were found to add to carbon-carbon unsaturated bonds of alkynes, 1,3-dienes and 1,2-dienes in the presence of a catalytic amount of palladium or nickel complexes to give alkenyl-or allylstannanes having various functional groups. Mechanisms are proposed that start with oxidative addition of a carbon-tin bond, or palladacycle formation followed by beta-tin elimination or by the reaction with an organostannane.
机译:发现在催化量的存在下,炔基,烯丙基,酰基,烯基和芳基锡烷中的碳-锡键会添加到炔烃,1,3-二烯和1,2-二烯的碳-碳不饱和键中钯或镍配合物,得到具有各种官能团的烯基-或烯丙基锡烷。提出了从氧化加成碳-锡键,或形成palladacycle,然后消除β-锡或与有机锡烷反应开始的机理。

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