Carbene Complexes of Nonmetals
Carbene Complexes of Nonmetals
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DOI：
10.1002/ejoc.200400415
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发表时间：
2005-05
影响因子：
2.8
通讯作者：
W. Kirmse
中科院分区：
文献类型：
--
作者：
W. Kirmse
亲电卡宾接受多种n-和π-供体。产品范围从持久叶立德到基质隔离的氙络合物。如果叶立德能热再生卡宾或进行协同的亚甲基转移反应，则它们可以被视为卡宾配合物。根据这些定义，本综述重点关注氧鎓叶立德和碘鎓叶立德。瞬时 π 配合物似乎参与卡宾与芳烃（但不与烯烃）的加成反应。亲核卡宾与路易斯酸形成加合物，其大部分是稳定的并且在结构上已得到很好的表征。直到最近才开始关注可逆系统。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, 德国, 2005)
Electrophilic carbenes accept a variety of n- and π-donors. The products range from persistent ylides to matrix-isolated xenon complexes. Ylides can be viewed as carbene complexes if they regenerate carbenes thermally or undergo concerted methylene transfer reactions. According to these definitions, the present review focuses on oxonium and iodonium ylides. Transient π-complexes appear to be involved in addition reactions of carbenes with arenes (but not with alkenes). Nucleophilic carbenes form adducts with Lewis acids which are, for the most part, stable and have been well characterized structurally. Only recently attention has been directed to reversible systems. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)