Sequential Ru−Pd Catalysis: A Two-Catalyst One-Pot Protocol for the Synthesis of N- and O-Heterocycles
作者:Barry M. Trost、Michelle R. Machacek、Brian D. Faulk
DOI:10.1021/ja060812g
日期:2006.5.1
differs between the use of amine versus alcohol nucleophiles. The method also affords heterocyclic products that are synthetically useful intermediates. Through the Z-vinylsilane a variety of stereodefined trisubstituted olefin products can be accessed including several all-carbon motifs. Finally, the utility of these heterocyclic products in total synthesis is demonstrated through concise syntheses
已经开发出一种原子经济、选择性和高度实用的杂环的两金属一锅合成方法,可以有效地提供对映和非对映纯的 N-和 O-杂环产物。此外,在双金属过程中使用手性催化剂可以形成所有可能的非对映异构体,即使是那些传统上由于热力学而难以通过环化路线获得的非对映异构体。有趣的是,使用胺与醇亲核试剂的对映体区分事件的性质不同。该方法还提供杂环产物,它们是合成有用的中间体。通过 Z-乙烯基硅烷,可以访问各种立体定义的三取代烯烃产品,包括几种全碳基序。最后,