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Heterolytic Dihydrogen Activation by a Frustrated Carbene–Borane Lewis Pair
Author(s) -
Holschumacher Dirk,
Bannenberg Thomas,
Hrib Cristian G.,
Jones Peter G.,
Tamm Matthias
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.200802705
Subject(s) - frustrated lewis pair , borane , heterolysis , carbene , steric effects , adduct , frustration , chemistry , boranes , medicinal chemistry , crystallography , stereochemistry , lewis acids and bases , physics , organic chemistry , catalysis , condensed matter physics , boron
Relief from frustration: The sterically demanding carbene 1,3‐di‐ tert ‐butylimidazolin‐2‐ylidene and B(C 6 F 5 ) 3 , a “frustrated” Lewis pair, is a viable system for the activation of CO, HH, and CH bonds. However, slow rearrangement to an abnormal carbene–borane adduct allows the irreversible formation of a strong BC bond and enables this system to circumvent frustration at the expense of its activity.