Process for the preparation of monoalkyl phosphonites

Details Process for the preparation of monoalkyl phosphonites Process for the preparation of monoalkyl phosphonites

1982-11-19

1984-10-02

Sutto, Anton H.

Chemistry of carbon compounds

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

C07F 948

Patent

active

044747110

ABSTRACT:
Monoalkyl phosphonites are prepared by the esterification of phosphonous acids with alcohols at temperatures of about 125.degree. to about 220.degree. C., preferably of about 130.degree. to about 180.degree. C.

REFERENCES:
patent: 2860155 (1958-11-01), Walsh
patent: 3725515 (1973-04-01), Schimmelschmidt et al.
Nifant'ev et al., "Zhurnal Obshchel Khimii", English Translation of vol. 42, No. 7, pp. 1460-1465, 1472-1475.
Houben-Weyl, Methoden der Organischen Chemie (=Methods of Organic Chemistry), vol. XII/1 (1963), p. 64.
Zeitschrift fur Anorganische und Allgemeine Chemie (=Journal of Inorganic and General Chemistry), vol. 399, (1973), p. 2.
G. M. Kosolapoff and J. S. Powell, J. Am. Chem. Soc. 72 (1950), p. 4291.
Soviet Inventors Certificate 172792, to E. E. Nifant'ev et al.
Chemical Abstracts, vol. 75, No. 23, Dec. 10, 1973, p. 410, Item 137424s.
Sovient Inventors Certificate 161748, to N. K. Blisnjuk et al.

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