Hydrogenation of phenylphosphonic acid

Details Hydrogenation of phenylphosphonic acid Hydrogenation of phenylphosphonic acid

1992-11-05

1994-09-06

Evans, Joseph E.

Organic compounds -- part of the class 532-570 series

Organic compounds

Phosphorus acids or salts thereof

562 11, C07F 938

Patent

active

053449665

ABSTRACT:
A cycloalkyl phosphorus compound is obtained by the catalytic hydrogenation of a substituted or unsubstituted aryl phosphonic acid using a heterogeneous catalyst which is a Group VIII metal on carbon. The hydrogenation is preferably effected in water. The catalyst can be ruthenium or carbon. When phenylphosphonic acid is used as the starting material, a yield of about 95% of essentially pure cyclohexylphosphonic acid can be obtained.

REFERENCES:
patent: 3754085 (1973-08-01), Christensen et al.
patent: 4212990 (1980-07-01), Yasuhara et al.

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