Reactions of Enimines with [Cp*RuCl]<sub>4</sub>: Half-Open Ruthenocene and Related Species Incorporating Heteroatoms
作者:J. Alfredo Gutierrez、Ma. Elena Navarro Clemente、M. Angeles Paz-Sandoval、Atta M. Arif、Richard D. Ernst
DOI:10.1021/om980875a
日期:1999.3.1
germanium, and tin derivatives with [Cp*RuCl]4 have been investigated and found to lead to a variety of products, depending on the nature of the enimine and the reaction conditions. In general, mixtures of products were obtained comprised of Cp*Ru(η5-azadienyl), Cp*Ru(η3-azadienyl)Cl2, and Cp*Ru(η4-amino-1,3-diene)Cl complexes. Significant differences in both product preferences and overall yields were observed
根据亚胺的性质和反应条件,已经研究了亚胺和多种硅,锗和锡衍生物与[Cp * RuCl] 4的反应,并导致产生多种产物。一般情况下,产物的混合物,得到包含的Cp *茹(η的5 -azadienyl)中,Cp *茹(η 3 -azadienyl)氯2,1和Cp *茹(η 4 -氨基环己-1,3-二烯)氯配合物。硅,锗和锡试剂之间观察到在这两种产品偏好和总产率显著差异,最后通常有利于η 5个络合物。溶剂的选择也发挥了重要作用,在η 5相对于苯,四氢呋喃配合物在THF中略有不利。试图转换一个η 4 -aminodiene复杂中,Cp *茹[η 4 -CH 3 CHCHC(CH 3)CHNH(叔丁基)〕,一个η 5 -azadienyl通过与银反应复杂+在K的存在2 CO 3导致的物质的混合物,其中包括期望的η 5复杂以及一个不寻常的Cp *茹(η 3-二亚胺基)Cl物种,它来自于氮中心和内部甲基的