Premium
Manganese Catalysts with C 1 ‐Symmetric N 4 Ligand for Enantioselective Epoxidation of Olefins
Author(s) -
Wang Bin,
Miao Chengxia,
Wang Shoufeng,
Xia Chungu,
Sun Wei
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201103802
Subject(s) - manganese , enantioselective synthesis , hydrogen peroxide , catalysis , ligand (biochemistry) , diamine , chemistry , combinatorial chemistry , organic chemistry , biochemistry , receptor
Bioinspired manganese complexes based on N 4 ligands, with a more rigid, chiral diamine derived from proline and two benzimidazoles, were synthesized and applied to epoxidize olefins with hydrogen peroxide as a clean oxidant. Notably, 60–99 % isolated yields and excellent ee values (up to 95 %) were obtained by using low catalyst loadings (0.01–0.2 mol %; see scheme; F green, S yellow).