Reactions of strained organosilicon heterocycles with nonacarbonyldi-iron(0). Part I. Reactivity and mechanism
作者:Colin S. Cundy、Michael F. Lappert、Jacques Dubac、Pierre Mazerolles
DOI:10.1039/dt9760000910
日期:——
The formation of 2,2,2,2-tetracarbonyl-1-sila-2-ferracyclopentanes by the reaction of silacyclobutanes with nonacarbonyldi-iron is described, and the nature of the process discussed. Completely regioselective reactions are found with Me2[graphic omitted](Me)H[Si–CH2 and not Si–C(Me)H cleavage] and with two silabenzocyclobutenes R2[graphic omitted]H2(R = Me or Ph)[C(arly)–Si and not C(alkyl)–Si cleavage]
描述了通过硅烷基环丁烷与九碳二基二铁的反应形成2,2,2,2-四羰基-1-硅2-2-ferracyclopentanes,并讨论了该方法的性质。发现了与Me 2 [未图示](Me)H [Si-CH 2而不是Si–C(Me)H裂解]和两个硅基苯并环丁烯R 2 [未图示] H 2(R = Me或Ph的完全区域选择性反应))[C(芳基)-Si,而不是C(烷基)-Si裂解]。使用XMe [H] 2的两种异构体的混合物(X = Bu n,异构体比例为4:1:X = MeO,异构体比例为7:3)时,该反应是立体特异性的,两者之间的异构体比例没有显着变化反应物和产物。结论是,这种[Fe(CO)4]插入可能是亲电的C-Si裂解反应,并且广泛使用该术语的过程是一致的。