Process for the preparation of vinyldiphosphonic acid and salts

Details Process for the preparation of vinyldiphosphonic acid and salts Process for the preparation of vinyldiphosphonic acid and salts

1987-06-30

1989-05-09

Evans, J. E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

562606, 562607, C07F 938, C07C 5109, C07C 5308, C07C 53122

Patent

active

048287660

ABSTRACT:
An improved process for the preparation of vinyldiphosphonic acid is disclosed. The process involves elimination of a volatile acid from a 1-(O-acyl)-ethane-1,1-diphosphonic acid. The starting materials may be prepared by reacting 1-hydroxyethane-1,1-diphosphonic acid with the corresponding acid or directly by reacting the acid with phosphorous acid and an acyl anhydride.

REFERENCES:
patent: 2708204 (1955-05-01), Bell et al.
patent: 3062792 (1962-11-01), McConnell et al.
patent: 3400147 (1968-09-01), Rogovin et al.
patent: 3468935 (1969-09-01), Peck
patent: 4332736 (1982-06-01), Starner et al.
patent: 4386036 (1983-05-01), Kleiner
patent: 4388252 (1983-01-01), Dursch et al.
patent: 4493803 (1985-01-01), Kleiner et al.
Canavan et al., "J. Chem. Soc." (Jan. 1952) pp. 331-334.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-88493