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Metal‐Free Reduction of CO 2 to Methoxyborane under Ambient Conditions through Borondiformate Formation
Author(s) -
Sau Samaresh Chandra,
Bhattacharjee Rameswar,
Vardhanapu Pavan K.,
Vijaykumar Gonela,
Datta Ayan,
Mandal Swadhin K.
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201609040
Subject(s) - catalysis , chemistry , tandem , carbene , catalytic cycle , homogeneous catalysis , metal , homogeneous , heterogeneous catalysis , nuclear magnetic resonance spectroscopy , photochemistry , inorganic chemistry , combinatorial chemistry , chemical engineering , organic chemistry , materials science , thermodynamics , physics , engineering , composite material
An abnormal N‐heterocyclic carbene (aNHC) based homogeneous catalyst has been used for the reduction of carbon dioxide to methoxyborane in the presence of a range of hydroboranes under ambient conditions and resulted in the highest turnover number of 6000. A catalytically active reaction intermediate, [aNHC‐H⋅9BBN(OCOH) 2 ] was structurally characterized and authenticated by NMR spectroscopy. A detailed mechanistic cycle of this catalytic process via borondiformate formation has been proposed from tandem experimental and computational experiments.