C - Chemistry – Metallurgy – 07 – C
Patent
C - Chemistry, Metallurgy
07
C
260/525.3
C07C 237/00 (2006.01)
Patent
CA 1037967
A B S T R A C T A process for the preparation of compounds of the general formula Image (I) (in which n is an integer equal to 1 or 2 and X and Y which may be the same or different are hydrogen atoms or organic groups, except that when n=2 not more than one of X and Y may re- present a hydrogen atom) in which a compound of the general formula Image (II) (in which M ? represents a cation, R represents an aliphatic group containing 1 to 3 carbon atoms and X, Y and n have the meanings given above) is reated with ammonia in an aqueous medium and thereafter the compound of formula (I) is libera- ted by acidification of the reaction medium.
230379
Bertholet Raymond
Hirsbrunner Pierre
Maggi A.g.
Na
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