Propoxylation and reductive alkylation of diethylenetriamine

Details Propoxylation and reductive alkylation of diethylenetriamine Propoxylation and reductive alkylation of diethylenetriamine

1994-06-14

1995-07-04

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

564475, 564503, 564512, C07C20926

Patent

active

054301904

ABSTRACT:
A one-pot reaction process for the coproduction of two polyurethane catalysts which comprises reacting excess diethylenetriamine (DETA) in a reaction vessel with propylene oxide in the presence of a hydrogenation catalyst under conditions and for a period of time to essentially completely react the propylene oxide to give a mixture of DETA and N-2-hydroxypropyldiethylenetriamine (HPDETA), adding formaldehyde and hydrogen to the reaction vessel, reacting the DETA and HPDETA with the formaldehyde and hydrogen under conditions to effect permethylation of the DETA and HPDETA to afford N,N,N',N',N"-pentamethyldiethylenetriamine (PMDETA), a polyurethane catalyst, and N-2-hydroxypropyl-N,N',N',N"-tetramethyldiethylenetriamine (HPTMDETA) a nonfugitive polyurethane catalyst.

REFERENCES:
patent: 4026840 (1977-05-01), Bechara et al.
patent: 4338408 (1982-07-01), Zimmerman et al.
patent: 4433170 (1984-02-01), Zimmerman et al.

Affiliated with

Also associated with

Rating

Propoxylation and reductive alkylation of diethylenetriamine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Propoxylation and reductive alkylation of diethylenetriamine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Propoxylation and reductive alkylation of diethylenetriamine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-761480