作者:Mahmood Delawar、Barbara Gehrhus、Peter B. Hitchcock
DOI:10.1039/b507462b
日期:——
observed for the insertion reaction of the thermally stable silylene Si[(NCH(2)Bu(t))(2)C(6)H(4)-1,2][abbrev. as Si(NN)] into the carbon-halogen bond of alkyl or aryl halides RHal (Hal=Cl, Br). In general, depending on the halogen, the reaction either results in a disilane of type (NN)Si(Hal)-(R)Si(NN) for Hal=Cl or a mixture of disilane and the monosilane (NN)Si(R)(Hal) for Hal=Br. The results are put
对于热稳定的甲硅烷基Si [(NCH(2)Bu(t))(2)C(6)H(4)-1,2] [abbrev]的插入反应,观察到异常的产物形成。[Si(NN)]的形式引入烷基或芳基卤化物RHal(Hal = Cl,Br)的碳-卤素键。通常,取决于卤素,该反应会导致Hal = Cl的类型为(NN)Si(Hal)-(R)Si(NN)的乙硅烷或乙硅烷与甲硅烷(NN)Si(R )(Hal)为Hal = Br。将结果与先前建议的机制结合起来。乙硅烷(NN)Si(Hal)-(R)Si(NN)(Hal = Cl或Br)具有热稳定性,温和的热分解作用可生成相应的甲硅烷(NN)Si(R)(Hal)和亚甲硅烷基1。强烈的证据表明1和RHal发生反应的自由基途径。