Asymmetric epoxidation reaction

Details Asymmetric epoxidation reaction Asymmetric epoxidation reaction

1992-08-24

1994-10-04

Gerstl, Robert

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

548126, C07F 302

Patent

active

053528140

ABSTRACT:
A process for producing an optically active benzopyran compound of the formula [I] or [II]: ##STR1## in which an olefin compound of the formula [V] or [VI]: ##STR2## is subjected to asymmetric epoxidation reaction, using, as a catalyst, an optically active manganese complex of the formula [III] or [IV]: ##STR3##

REFERENCES:
patent: 4900752 (1990-02-01), Seto et al.
patent: 5097037 (1992-03-01), Matsumoto et al.
Hatayama, Synlett 409, 1992.
Hosoya, Synlett 691, 1991.
World Patents Index of "Berwent" (1993).
J. Med. Chem. 1984, 27, pp. 1127-1131.
Tetrahedron Letters, vol. 32, No. 8, pp. 1055-1058 (1991).
Tetrahedron: Asymmetry, vol. 2, pp. 481-494, 1991.
Tetrahedron Letters, vol. 31, No. 50, pp. 7345-7348, 1990.

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