Bismuth enhanced activity of transition metal-bromine catalysis

Details Bismuth enhanced activity of transition metal-bromine catalysis Bismuth enhanced activity of transition metal-bromine catalysis

1973-05-21

1976-01-06

Weinberger, Lorraine A.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 5133

Patent

active

039313042

ABSTRACT:
Addition of non-transitional bismuth ion to oxidation catalysis provided by heavy, transition metal-bromine ion combination containing both cobalt and manganese ions uniquely increases catalytic activity of said combination for converting ortho substituted methyl groups to corresponding carboxylic acid groups on benzene nucleus by a factor much greater than by the addition of equivalent amount of such high catalytically active heavy, transition metal as cobalt and manganese. Such greater catalytic activity is manifested by longer sustained initial rapid rate of oxygen consumption and higher o-dicarboxybenzene yield.

REFERENCES:
patent: 2833816 (1958-05-01), Saffer et al.
patent: 3299125 (1967-01-01), Ichikawa

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