Iron(0) Promotes Aza Cyclization of an Elusive Ferrocenylketene

详细信息    查看全文

• 作者：M. Carmen Ortega-Alfaro ; Alfredo Rosas-S谩nchez ; Bertha E. Zarate-Picazo ; Jos茅 G. L贸pez-Cort茅s ; Fernando Cort茅s-Guzm谩n ; Ruben A. Toscano
• 刊名：Organometallics
• 出版年：2011
• 出版时间：September 26, 2011
• 年：2011
• 卷：30
• 期：18
• 页码：4830-4837
• 全文大小：1004K
• 年卷期：v.30,no.18(September 26, 2011)
• ISSN：1520-6041

文摘

The synthesis of a ferrocenylvinylketene as a stable 畏⁴-[Fe(CO)₃] complex has been successfully accomplished through the reaction of 畏²-[Fe(CO)₄] complex under mild carbonylation conditions. The reactivity of this ferrocenylketene under nucleophilic and thermal conditions has been explored. The mechanism of the thermal formation of a ferrocenylquinolizine through the reaction of the 畏⁴-[Fe(CO)₃] ferrocenylvinylketene complex has been studied computationally within the density functional theory framework. The computational data reveal that this transformation proceeds through olefin isomerization, migration, and cyclization steps. The role of the [Fe(CO)₃] moiety in this process has been established.