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Acceptorless and Base‐Free Dehydrogenation of Alcohols Mediated by a Dipyridylamine‐Iridium(III) Catalyst
Author(s) -
Jayaprakash Harikrishnan,
Guo Liwei,
Wang Shengdong,
Bruneau Christian,
Fischmeister Cédric
Publication year - 2020
Publication title -
european journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.825
H-Index - 155
eISSN - 1099-0690
pISSN - 1434-193X
DOI - 10.1002/ejoc.202000584
Subject(s) - chemistry , dehydrogenation , iridium , catalysis , ruthenium , toluene , anisole , base (topology) , organic chemistry , combinatorial chemistry , polymer chemistry , mathematical analysis , mathematics
Several dipyridylamine‐Ir III and dipyridylamine‐Ru II complexes have been evaluated in the acceptorless dehydrogenation of alcohols in the absence of base additives. Iridium catalysts were found superior to ruthenium complexes, and the nature of the bridging nitrogen in dipyridylamine ligands was also evidenced as a key parameter. Catalytic reactions were conducted in toluene, but more sustainable solvents such as anisole and p ‐cymene were found suitable for this transformation.