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A Nickel‐Diamine/Mesoporous Silica Composite as a Heterogeneous Chiral Catalyst for Asymmetric 1,4‐Addition Reactions
Author(s) -
Ishitani Haruro,
Kanai Kan,
Yoo WooJin,
Yoshida Tomoko,
Kobayashi Shū
Publication year - 2019
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201906349
Subject(s) - nitromethane , nickel , catalysis , diamine , mesoporous material , reactivity (psychology) , mesoporous silica , chemistry , enantioselective synthesis , composite number , mcm 41 , heterogeneous catalysis , chemical engineering , materials science , polymer chemistry , organic chemistry , composite material , medicine , alternative medicine , pathology , engineering
A chiral composite material, derived from the deposition of a chiral nickel–diamine complex via wet impregnation to MCM‐41, was shown to be an efficient heterogeneous catalyst for asymmetric 1,4‐addition reactions of 1,3‐dicarbonyl compounds with nitroalkenes, and of nitromethane with alkylidenemalonates. It was discovered that MCM‐41 enhanced the reactivity and improved the stability of the chiral nickel complex that resides within the mesoporous material.