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Carbodicarbenes: Divalent Carbon(0) Compounds
Author(s) -
Kaufhold Oliver,
Hahn F. Ekkehardt
Publication year - 2008
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200800846
Subject(s) - allene , ylide , divalent , chemistry , olefin fiber , double bond , divalent metal , polarization (electrochemistry) , crystallography , stereochemistry , medicinal chemistry , polymer chemistry , organic chemistry , catalysis , metal
Polarization of CC bonds is the trick! A “push–push” polarization of the double bonds stabilized the nonlinear allene 1 a (∢ CCC 134.8(2)°), which can be described as carbodicarbene 1 b . A similar behavior has been observed for 1,3‐dimethyl‐2‐methyleneimidazoline, which can be seen as an olefin 2 a or an ylide 2 b . Both compounds 1 and 2 act as interesting electron‐rich η 1 ligands for transition metals.