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Synlett 1993; 1993(4): 300-302
DOI: 10.1055/s-1993-22440
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Catalytic Asymmetric Epoxidation with (Salen)manganese(III) Complex Bearing Binaphthyl Groups of Axial Chirality

Hidehiko Sasaki* , Ryo Irie, Tsutomu Katsuki
  • *Department of Chemistry, Faculty of Science, Kyushu University 33, Hakozaki, Higashi-ku, Fukuoka 812, Japan
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Publication Date:
19 March 2002 (online)

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Chiral (salen)manganese(III) complexes bearing binaphthyl groups of axial chirality were newly prepared and used for the asymmetric epoxidation of unfunctionalized olefins as catalysts. Epoxidation of cis-olefins was found to proceed with high enantioselectivity in the presence of pyridine N-oxide, when complex 4a was used as a catalyst.

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