Process for preparation of .alpha.-acetoxy-.alpha.-methyl-N,N'-diacetyl malonamide
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United States of America Patent
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Jul 24, 1990
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N/A
app pub date -
Jan 15, 1986
filing date -
Feb 2, 1982
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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.
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