Preparation of n-(aminoalkyl) piperazine

Details Preparation of n-(aminoalkyl) piperazine Preparation of n-(aminoalkyl) piperazine

C - Chemistry, Metallurgy

07

D

260/267.8

C07D 295/00 (2006.01) C07D 295/023 (2006.01) C07D 295/13 (2006.01)

Patent

CA 1070309

PREPARATION OF N-(AMINOALKYL)PIPERAZINE (D#75,005-4-F) Abstract of the Disclosure An improved process for selectively preparing an N-(aminoalkyl)piperazine compound is disclosed wherein piperazine is contacted with a primary or secondary amino alkanol compound in the presence of a catalytically effective amount of a phosphorus-containing substance at a temperature of from about 250°C to about 350°C under a pressure sufficient to maintain the mixture essentially in liquid phase and the N-(aminoalkyl)piperazine is then recovered from the resultant reaction mixture. In a preferred embodiment piperazine is contacted with monoethanolamine to produce N-(2-aminoethyl)- piperazine.

252750

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