Oligophosphonic acids, oligophosphinic acids, and process of pre

Details Oligophosphonic acids, oligophosphinic acids, and process of pre Oligophosphonic acids, oligophosphinic acids, and process of pre

1982-03-12

1986-02-25

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

2605024P, 260970, C07F 930, C07F 938

Patent

active

045728070

ABSTRACT:
This invention relates to a process for preparing oligophosphonic or oligophosphinic acids or esters or salts thereof which comprises reacting an alkali metal ester of phosphorous acid or an alkali metal ester of arylphosphonous or alkylphosphonous acid with an olefin polyhalide and, optionally, saponifying the resultant product.

REFERENCES:
patent: 2651656 (1953-09-01), Ladd et al.
patent: 3471552 (1969-10-01), Budnick
patent: 3501555 (1970-03-01), Frank et al.
patent: 3743688 (1973-07-01), Nicholson et al.
patent: 3808273 (1974-04-01), Kerst
Tetrahedron, vol. 26, No. 23, Dec. 1970, pp. 5529-5534.
Journal of the Chemical Society, Jun. 1963, pp. 3351-3360.

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