Method of producing ethylenediamines

Details Method of producing ethylenediamines Method of producing ethylenediamines

C - Chemistry, Metallurgy

07

C

260/607.9

C07C 209/62 (2006.01) C07C 209/60 (2006.01) C07C 211/09 (2006.01)

Patent

CA 2003449

Abstract of The Disclosure A method of producing ethylenediamines repre- sented by the general formula Image ( I ) wherein R represents a hydrogen atom, or a methyl or ethyl group, which comprises reacting an aziridine compound of the general formula (II) Image wherein R is as defined, with ammonia in the gaseous phase in the presence of a solid acid catalyst. In another aspect, a method of producing ethylenediamines of the general formula (I), which comprises reacting a reaction product containing an aziridine compound of the general formula (II), obtained by the gaseous phase intramolecular dehydration reaction of an alkanolamine represented by the general formula Image (III) wherein X represents the OH group or the NH2 group, Y represents the NH2 group when X is the OH group and the OH group when X is the NH2 group, and R is as defined, in the presence of a catalyst A, with ammonia in the gaseous phase in the presence of a solid acid catalyst (catalyst B).

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