A New Class of Singlet Carbene Ligands

被引:35
作者
Alcarazo, Manuel [1 ]
Suarez, Rosa M. [1 ]
Goddard, Richard [1 ]
Fuerstner, Alois [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词
allenes; carbenes; gold; rhodium; zwitterions; N-HETEROCYCLIC CARBENES; COMPLEXES; CHEMISTRY; ALLENES;
D O I
10.1002/chem.201001779
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure Presented) What are you? Deprotonation of fluorenylidene phosphonium salts generates reactive intermediates that can be described as push-pull cumulenes or singlet carbenes (see scheme). Whereas the NMR data are ambiguous, the coordination behavior shows the ready availability of a lone pair at the central C atom. The donor ability of singlet carbene ligands of this new class exceeds that of the commonly used N-heterocyclic carbenes (NHCs). © 2010 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:9746 / 9749
页数:4
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