Preparation of tricarbonyl(benzene)chromium and ferrocene containing unsaturated amides and nitriles
作者:Jiling Huang、Hong-Xia Jiang、Yao-Zeng Huang
DOI:10.1016/0022-328x(91)80246-g
日期:1991.1
A series of tricarbonyl(benzene) chromium-containing and ferrocene-containing α,β-unsaturated amides and nitriles has been prepared via a variety of arsonium salts with tricarbonyl(benzaldehyde)chromium or monoformyl-ferrocene with high E stereoselectivity in moderate to good yields.
A facile synthesis of (2E)-, (2E, 4E)-unsaturated amides was achieved via arsonium bromides with high stereoselectivity. Its application to the synthesis of related natural products 4 and 5 is also reported.