Substituted ethane diphosphonic acids and salts

Details Substituted ethane diphosphonic acids and salts Substituted ethane diphosphonic acids and salts

1973-12-06

1976-03-16

Evans, Joseph E.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07F 938

Patent

active

039445992

ABSTRACT:
New and useful substituted ethane diphosphonic acids and salts and esters thereof as exemplified by the ester compound having the formula ##EQU1## tetraethyl, 1,2 dihydroxy ethane-1,1-diphosphonate and processes for preparing the same which generically comprise the "de-oxiranization" of an epoxy ethane diphosphonate having the formula ##EQU2## wherein R.sub.3 is hydrogen, a metal ion, or an organic radical.

REFERENCES:
patent: 2900408 (1959-08-01), Blauer et al.
patent: 3366677 (1968-01-01), Quimby
patent: 3475486 (1969-10-01), Irani et al.
patent: 3525782 (1970-08-01), Jacques et al.
patent: 3544509 (1970-12-01), Carroll et al.
Wagner et al., "Synthetic Organic Chemistry," 1953, pp. 93, 94, 109, 110, 254 and 255.

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