Preparation of N-(phosphonoacetyl)-L-aspartic acid

Details Preparation of N-(phosphonoacetyl)-L-aspartic acid Preparation of N-(phosphonoacetyl)-L-aspartic acid

1978-08-10

1979-05-15

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 938

Patent

active

041547594

ABSTRACT:
Improved methods for preparation of the tetrasodium and disodium salts of N-(phosphonoacetyl)-L-aspartic acid (PALA) are disclosed. The present methods are well suited for preparation of these products in large amounts. A particular aspect of these methods includes a water-ethanol washing procedure for reducing impurities, including acetic acid, sodium acetate and ethanol, to an acceptable level.

REFERENCES:
patent: 3417098 (1968-12-01), Anatol
patent: 4016148 (1977-04-01), Ratcliffe et al.
Vogel, "Practical Organic Chemistry" (1948), pp. 122-131.

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