2,2′-Azobis(2-methylpropionitrile)-Mediated Alkyne Hydrostannylation: Reaction Mechanism
作者:Martins S. Oderinde、Robert D. J. Froese、Michael G. Organ
DOI:10.1002/anie.201303736
日期:2013.10.18
free‐radical hydrostannylation of alkynes has been extensively studied and while every published mechanism involves solely radical intermediates, this appears not to be correct. Trace molecular oxygen is necessary for any radical‐mediated hydrostannylation to occur with a wide selection of alkynes, thus leading to a proposed hybrid single‐electron transfer/radical propagation mechanism. AIBN=2,2′‐azobis
不像您想像的那样激进:炔烃的自由基加氢苯乙烯基化已得到广泛研究,尽管每种已公开的机理都只涉及自由基中间体,但这似乎是不正确的。自由基与多种炔烃发生自由基聚合所需的痕量分子氧是必需的,因此导致提出了混合单电子转移/自由基传播机理。AIBN = 2,2'-偶氮二(2-甲基丙腈)。