Asymmetric epoxidation reaction

Details Asymmetric epoxidation reaction Asymmetric epoxidation reaction

1995-05-30

1997-02-04

Nazario-Gonzalez, Porfirio

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548126, 548414, 548416, 548417, 549531, 502171, 556 35, 556 45, C07F 1300, C07F 9547, C07D32300, C07D48700

Patent

active

055999573

ABSTRACT:
An optically active manganese complex of the formula I.sub.a, I.sub.b, I.sub.c and I.sub.d ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 independently represent hydrogen atom, C.sub.1 -.sub.4 alkyl group, phenyl group which may be substituted by a halogen atom, C.sub.1 -.sub.4 alkyl group, C.sub.1 -.sub.4 alkoxyl group, cyano group or nitro group; and any two of R.sup.1, R.sup.2, R.sup.3 and R.sup.4 together form a C.sub.4 -.sub.8 ring, X.sup.- represents a counter anion which may form a salt, Y represents hydrogen atom, halogen atom, C.sub.1 -.sub.4 alkyl group, C.sub.1 -.sub.4 alkoxyl group, nitro group or cyano group, R represents hydrogen atom, C.sub.1 -.sub.4 alkyl group, phenyl group which may be substituted by halogen atom, C.sub.1 -.sub.4 alkyl group or C.sub.1 -.sub.4 alkoxyl group, or substituted silyl group and a process for producing epoxy compounds using the complex as a catalyst.

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