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Oxidative Addition of a Mechanically Entrapped C(sp)–C(sp) Bond to a Rhodium(I) Pincer Complex
Author(s) -
Leforestier Baptiste,
Gyton Matthew R.,
Chaplin Adrian B.
Publication year - 2020
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.202009546
Subject(s) - rhodium , pincer movement , chemistry , oxidative addition , hydrogenolysis , phosphinite , pincer ligand , ligand (biochemistry) , carbon monoxide , photochemistry , medicinal chemistry , stereochemistry , catalysis , organic chemistry , biochemistry , receptor
By use of a macrocyclic phosphinite pincer ligand and bulky substrate substituents, we demonstrate how the mechanical bond can be leveraged to promote the oxidative addition of an interlocked 1,3‐diyne to a rhodium(I) center. The resulting rhodium(III) bis(alkynyl) product can be trapped out by reaction with carbon monoxide or intercepted through irreversible reaction with dihydrogen, resulting in selective hydrogenolysis of the C−C σ‐bond.