Bis(piperazinylalkyl) ether compound and method for the preparat

Details Bis(piperazinylalkyl) ether compound and method for the preparat Bis(piperazinylalkyl) ether compound and method for the preparat

1990-05-02

1991-10-08

Welsh, Maurice J.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D24104

Patent

active

050555812

ABSTRACT:
The invention provides a novel compound which is a bis(4-alkyl-substituted piperazinylalkyl) ether such as bis[2-(4-methylpiperazinyl)ethyl] ether and bis[2-(4-ethylpiperazinyl)ethyl] ether. The compound, which can be prepared by the dehydrochlorination reaction between a 1-alkyl-substituted piperazine and a bis(chloroalkyl) ether, is useful as a catalyst for the urethane-forming reaction between a polyisocyanate compound and a polyol compound to give an advantage that a sufficiently long mixing time is available to ensure full uniformity of the reaction mixture before substantial proceeding of the reaction.

REFERENCES:
patent: 4898876 (1990-02-01), Fujii et al.

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