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Tuning N‐Heterocyclic Carbenes in T‐Shaped Pt II Complexes for Intermolecular CH Bond Activation of Arenes
Author(s) -
RivadaWheelaghan Orestes,
Ortuño Manuel A.,
Díez Josefina,
Lledós Agustí,
Conejero Salvador
Publication year - 2012
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.201200070
Subject(s) - agostic interaction , chemistry , carbene , intermolecular force , isopropyl , trifluoromethyl , medicinal chemistry , boron , bond cleavage , stereochemistry , catalysis , molecule , organic chemistry , alkyl , metal
Small change matters : T‐shaped Pt II complexes with less flexible substituents, than, for example, isopropyl or tert ‐butyl groups, on N‐heterocyclic carbene (NHC) ligands allow for CH bond activation reactions of aromatic compounds (see scheme; BAr f 4 − =tetrakis[(3,5‐trifluoromethyl)phenyl]borate; F yellow, Pt red). NHC substituents that are not highly branched prevent agostic interactions and reduce the barriers to achieve the CH bond cleavage.