Process for producing a denaturated manganese dioxide catalyst f

Details Process for producing a denaturated manganese dioxide catalyst f Process for producing a denaturated manganese dioxide catalyst f

1991-08-14

1992-12-29

Elmore, Carolyn

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

Organic compounds

Amino nitrogen containing

502324, C07C23106

Patent

active

051753669

ABSTRACT:
A process for preparing an amide by hydrating a cyanohydrin with a denatured manganese dioxide catalyst. The catalyst is prepared by reacting an aqueous permanganate solution and an aqueous manganese (II) compound solution in an acidic aqueous solution at a temperature of 70.degree. C. to 150.degree. C.

REFERENCES:
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patent: 3699164 (1972-10-01), Fine et al.
patent: 4018829 (1997-04-01), Gruber et al.
Database WPI, No. 77-67710Y, Derwent Publications Ltd. London, GB; for JP-A-52 095 597.
Database WPI, No. 76-59058X, Derwent Publications Ltd. London, GB; for JP-A-51 071 299 Abstract.

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