Process for the preparation of diesters of phosphonocarboxylic a

Details Process for the preparation of diesters of phosphonocarboxylic a Process for the preparation of diesters of phosphonocarboxylic a

1995-07-27

1997-07-15

Richter, Johann

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

Organic compounds

Phosphorus esters

558145, 558 87, C07F 902

Patent

active

056485093

ABSTRACT:
The addition of acid diesters of phosphorous acid onto alpha,beta-unsaturated carboxylic acid derivatives under basic catalysis is achieved with good yields if it is carried out in the presence of alkali metal alcoholates or phenolates and in the presence of halides, oxides or hydroxides of divalent metals. Co-use of these metal compounds allows relatively small mounts of metal alcoholates or phenolates to be used. The resulting reaction mixtures do not contain relatively large amounts of troublesome by-products.

REFERENCES:
patent: 2754319 (1956-07-01), Johnston
patent: 2754320 (1956-07-01), Johnston et al.
patent: 2844558 (1958-07-01), Toy et al.
patent: 2971019 (1961-02-01), Ladd et al.
patent: 3699192 (1972-10-01), Marotti
Yankov et al., Dokl. Bolg. Akad. Nauk 42(12), 75-7 (1989).
Wasielewski et al., J. Prakt. Chem., 331(3), 507-10 (1989).
Zhao et al., Phosphorus Sulfur, 33(1-2), 53-9 (1987).
Mahran et al., Heteroat. Chem., 3(2), 93-9 (1992).
Chem. Abstract, vol. 102, #23 (1985) 204043, Makosza et al.
Comptes rendus de L'Academie bulgare des Sciences, 42, No. 12, 1989, pp. 75-77.

Affiliated with

Also associated with

Rating

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1493428