Process for preparing linearly-extended polyalkylenepolyamines

Details Process for preparing linearly-extended polyalkylenepolyamines Process for preparing linearly-extended polyalkylenepolyamines

1988-10-14

1991-07-09

Gerstl, Robert

Organic compounds -- part of the class 532-570 series

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

564480, C07C20916, C07D40314

Patent

active

050307401

ABSTRACT:
A process for preparing linearly-extended polyalkylenepolyamines, such as linear and branched polyethylenepolyamines, comprising contacting a difunctional aliphatic alcohol, such as monoethanolamine, with a reactant amine, such as ethylenediamine, in the presence of a catalyst containing tungsten oxide essentially free of the metals of Groups VIII, IB, and IIB of the Periodic Table. Included among the linearly-extended polyalkylenepolyamines are alcohol-extended piperazines, such as N-(2-hydroxyethyl)-piperazine, and amine-extended piperazines, such as N-(2-aminoethyl)piperazine.

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Unverified Translation of Japanese 48-96475.
Unvarified Translation of Japanese 83-35179.
Abstract of Japanese 53,250 of 10/16/78.

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