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Synlett 1991; 1991(10): 691-692
DOI: 10.1055/s-1991-34756
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Enantioselective Epoxidation of Olefins with Chiral (Salen)manganese(III) Complexes Bearing 4-Methyl-3-[(R)-1-phenylpropyl]salicylideneamine as a Constituent

Naoki Hosoya* , Ryo Irie, Yoshio Ito, Tsutomu Katsuki
  • *Department of Chemistry, Faculty of Science, Kyushu University 33, Hakozaki, Higashi-ku, Fukuoka 812, Japan
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Publication Date:
13 March 2002 (online)

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(Salen)manganese(III) complex 5 [2,2′-[2-methylpropane-1,2-diylbis (nitrilomethylidyne)]-5,5′ - dimethyl-6,6′ - (1-phenylpropyl)diphenolatomanganese (III)] bearing one set of stereogenic centers in the 1-phenylpropyl substituents and a geminally dimethylated ethylenediamine moiety was found to catalyze the enantioselective epoxidation of E olefins just as effectively as the reported (salen)manganese(III) complex 2, which bears two sets of stereogenic centers, in the ring substituents and on the ethylenediamine moiety.