Bisphosphonites

Details Bisphosphonites Bisphosphonites

1979-10-11

1981-04-21

Sutto, Anton H.

Chemistry of carbon compounds

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

252400A, C07F 928

Patent

active

042632307

ABSTRACT:
Novel bisphosphonite compounds of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are each independently selected from the group consisting of hydrogen and alkyl of from 1 to 10 carbon atoms, and R is selected from the group consisting of cyclic, straight or branched chain alkyl of from 5 to 12 carbon atoms, straight or branched chain haloalkyl of from 1 to 12 carbon atoms, phenyl, and alkyl substituted phenyl wherein each alkyl is from 1 to 12 carbon atoms.
The compounds are useful as intermediates for the production of polymers, insecticides, fungicides, pharmaceuticals, catalyst activators, flame retardants and particularly stabilizers, e.g., anti-oxidants.

REFERENCES:
patent: 2957931 (1960-10-01), Hamilton et al.
patent: 3005000 (1961-10-01), Cooper
patent: 3171818 (1965-03-01), Sander
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patent: 3270092 (1966-08-01), Harwood
patent: 3681481 (1972-08-01), Lin
patent: 3825629 (1974-07-01), Hofer et al.
patent: 3845169 (1974-10-01), Maier
patent: 3875264 (1975-04-01), Hofer et al.
patent: 4029721 (1977-06-01), Vollmer et al.
King et al., "Inorganic Chemistry," vol. 17, No. 10, (1978), pp. 2961-2963.

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