Process for preparation of .alpha.-acetoxy-.alpha.-methyl-N,N'-d

Details Process for preparation of .alpha.-acetoxy-.alpha.-methyl-N,N'-d Process for preparation of .alpha.-acetoxy-.alpha.-methyl-N,N'-d

1986-01-15

1990-07-24

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

558345, C07C23106, C07C23588

Patent

active

049436546

ABSTRACT:
Process for the preparation of .alpha.-acetoxy-.alpha.-methyl-N,N'-diacetylmalonamide wherein hydrocyanic acid or a cyanide is reacted in a first step with acetic anhydride and then in a second step the reaction mixture so obtained is treated with acetic acid in the presence of an acid catalyst, wherein the first step is carried out in the presence of a catalyst based on anion exchange resins in which the functional groups are quaternary ammonium or tertiary amine, such .alpha.-acetoxy-.alpha.-methyl-N,N'-diacetylmalonamides being very useful as activators in bleaching and cleaning compositions which are thus active at lower temperatures.

REFERENCES:
Calmon et al., Ion Exchangers in Organic and Biochemistry, Interscience Publishers, Inc., N.Y., 1957, pp. 662-663.
Dow Chemical Company, Dowex:: Ion Exchanger, Dow Chemical Company, Midland, Michigan, 1964, pp. 7-8 and 34.
Kressman, I. R. E., Manufacturing Chemist, Nov., 1956, pp. 454-458.

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