FORFARANDE FOR FRAMSTELLNING AV POLYACETYLALKYLENDIAMINER GENOM ACETYLERING AV ALKYLENDIAMINER

摘要

1335204 Polyacetylalkylenediamines UNILEVER Ltd 7 July 1971 [7 July 1970] 32850/70 Heading C2C An N,N1-diacetylalkylenediamine is prepared by reacting a diamine H 2 NRNH 2 (in which R is an alkylene or substituted alkylene radical having 2-6 carbon atoms in a straight chain between the N atoms) with acetic acid in a molar ratio of at least 1 : 2, and removing the water of reaction, preferably not until the reaction is more than 50% complete. The product may be further acetylated by reaction with an acetylating agent other than acetic acid, e.g. acetic anhydride, to produce the N,N,N1-tri-and/or N,N,N1,N1-tetraacetylalkylenediamine.