Process for the production of phenylmalonic acid mono-esters

Details Process for the production of phenylmalonic acid mono-esters Process for the production of phenylmalonic acid mono-esters

1980-07-21

1982-06-22

Chan, Nicky

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

560 82, 560 97, C07D30906, C07C 69773

Patent

active

043361960

ABSTRACT:
Sodium salts of phenylmalonic acid mono-esters are produced by reacting a phenylacetic acid ester with carbon dioxide in the presence of a sodium substituted compound, which is prepared by substituting a sodium atom for a hydrogen atom of an organic compound selected from a group consisting of acetylene, cumene, triphenylmethane, methyl-methylthiomethyl-sulfoxide and dimethyl-sulfoxide, at a temperature in a range of -20.degree. C. to -40.degree. C.

REFERENCES:
patent: 2171871 (1939-09-01), Walker
patent: 3560531 (1971-02-01), Normant
patent: 3976677 (1976-08-01), Bottaccio et al.
Benkeser et al., Chem. Rev., 57, 867 (1957).
Morrison et al., "Organic Chemistry", publishers, Allan & Bacon, Boston, 3rd. Ed., 1975, pp. 846-853.

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