Process for preparing oligomers and telechels having carboxy-pip

Details Process for preparing oligomers and telechels having carboxy-pip Process for preparing oligomers and telechels having carboxy-pip

1986-11-17

1988-07-19

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From reactant having a nitrogen atom directly bonded to the...

528372, 544387, 544360, 544357, 25218228, C08G 6362, C09K 300, C07D24104

Patent

active

047586524

ABSTRACT:
A process for preparing oligomers and telechels of poly(carboxy-piperazine) and new oligomers the telechels of poly(carboxy-piperazine), wherein the process involves condensation of piperazine or piperazine-N-carboxylic acid esters or their reaction with piperazine or piperidine derivatives to form an intermediate which is reacted with diphenyl carbonate in the presence of a tertiary amine.

REFERENCES:
patent: 2717896 (1955-09-01), Goldman
patent: 3130179 (1964-04-01), Cotter
patent: 3954770 (1976-05-01), Mayerhoefer et al.
patent: 4165424 (1979-08-01), Hermans
Chemical Abstracts, vol. 82, Nr. 17, Apr. 28, 1975, Columbus, Ohio, M. I. Doroklova, "Synthesis of 1-methyl-piperazine", p. 511 (112033n).
Australian Journal of Chemistry, vol. 19, 1966, Melbourne, D. E. Rivett et al., "Some Reactions of 1,4-Bischlorocarbonylpiperazine", pp. 869-875.
Die Makromolekulare Chemie, Bol. 187, Nr. 6, Jun. 1986.
R. Schwalm et al., "Syntheses of Telechelic Oligo-and poly(carboxypiperazine)s", pp. 1415-1422.

Affiliated with

Also associated with

Rating

Process for preparing oligomers and telechels having carboxy-pip does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for preparing oligomers and telechels having carboxy-pip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for preparing oligomers and telechels having carboxy-pip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-598145