Process for the preparation of n-substituted...

Details Process for the preparation of n-substituted... Process for the preparation of n-substituted...

C - Chemistry, Metallurgy

07

F

260/501.5

C07F 9/38 (2006.01)

Patent

CA 1275418

ABSTRACT OF THE DISCLOSURE A process for the preparation of an N-substituted aminomethylphosphonic acid represented by the formula: Image wherein R1 is alkyl or carboxylakyl, and R2 is carboxyalkyl, is disclosed. The process comprises: preparing a mixture of an aqueous acidic medium comprising phosphorous acid; an acid selected from the group consisting of sulfuric acid, hydrochloric acid and hydrobromic acid; and a substituted substrate compound represented by the formula: Image wherein R1 and R2 are as defined above, Y is oxygen or sulfur, and R3 is selected from the group consisting of alkyl and carboxyalkyl; heating the mixture to a temperature between about 70°C and 120°C; and thereafter slowly adding formaldehyde to the mixture.

518771

Affiliated with

Also associated with

Rating

Process for the preparation of n-substituted... 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 the preparation of n-substituted..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for the preparation of n-substituted... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1238503