Process for producing 1,6-di(n -cyano-n -guanidino) hexane

Details Process for producing 1,6-di(n -cyano-n -guanidino) hexane Process for producing 1,6-di(n -cyano-n -guanidino) hexane

C - Chemistry, Metallurgy

07

C

260/540.3

C07C 279/28 (2006.01)

Patent

CA 1299584

ABSTRACT OF THE DISCLOSURE The present invention relates to an improved process for producing 1,6-di(N3-cyano-N1-guanidino) hexane from alkali dicyanamide and a hexamethylene diammonium salt in alcoholic solution or suspension. The reaction is carried out in the presence of a limited amount of water and a catalytic amount of a base, preferably a tertiary amine, the pH value of the reaction mixture being 8 to 10 at the beginning of the reaction. When the reaction is completed the reaction mixture, while hot, i.e., above 80°C, is treated with water and the coarsely crystallized product is separated from the liquid phase. Sodium dicyanamide and hexamethylene diamine-dihydrochloride, preferably formed in situ from aqueous 1,6-diamino hexane and aqueous hydrochloric acid, are preferably reacted at pH9 to 9.5 mm-butanol in the presence of 0.1 to 20% by weight of water, relative to the solvent including water. 1,6-di(N3-cyano-N1-guanidino) hexane is obtained in a high yield (85 to 96%), with a high degree of purity (95 to 97%), and with suhstantially increased space- time yield.

576371

Affiliated with

Also associated with

Rating

Process for producing 1,6-di(n -cyano-n -guanidino) hexane 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 producing 1,6-di(n -cyano-n -guanidino) hexane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing 1,6-di(n -cyano-n -guanidino) hexane will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1229375