Efficient Synthesis of Five- and Seven-Membered-Ring Heterocycles by Rhodium(II)-Catalyzed [3+2] and [3+4] Cycloaddition of Diazodicarbonyl Compounds with Conjugated Dienes
作者:Yong Rok Lee、Jae Cheol Hwang
DOI:10.1002/ejoc.200400452
日期:2005.4
Rhodium(II)-catalyzed reactions of diazodicarbonyl compounds with a variety of conjugated dienes have been examined. These reactions provide a simple and rapid route to dihydrofurans and dihydrooxepines with a variety of substituents on the ring. The formation of these products is interpreted in terms of a stepwise mechanism. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)
已经研究了铑 (II) 催化的重氮二羰基化合物与各种共轭二烯的反应。这些反应为环上具有多种取代基的二氢呋喃和二氢氧杂环庚烷提供了一种简单而快速的途径。这些产物的形成被解释为逐步机制。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)