Journal
TETRAHEDRON
Volume 74, Issue 21, Pages 2523-2546Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tet.2018.04.013
Keywords
N-Heterocyclic carbenes; Mesoionic 1,2,3-triazol-5-ylidenes; MIC metal complexes; Metal-catalyzed reactions
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Funding
- University of Texas at Arlington
- University of Texas at San Antonio
- ACS PRF-ND award [58269-ND1]
- Jain University (India)
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Beyond the classic N-heterocyclic carbenes (NHCs) there is a subclass of NHCs called mesoionic carbenes (MICs). This review focuses on recent advances in the area of 1,2,3-triazol-5-ylidenes as the most abundant class of MICs and their metal complexes. The study of mesoionic 1,2,4- and 1,3,4-trisubstituted 1,2,3-triazol-5-ylidene transition metal complexes is a research area with a history of just-10 years. During this relatively short period, hundreds of these complexes have appeared in the literature, reflecting their high stability and simpler synthesis compared with NHCs. Specifically, this review is focused on advances in the synthesis of 1,2,3-triazol-5-ylidene metal complexes derived from palladium, silver, gold, ruthenium, iridium, rhodium, iron, molybdenum, cobalt, nickel, platinum, and osmium, together with their catalytic, medicinal, and photophysical applications. (C) 2018 Elsevier Ltd. All rights reserved.
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