Preparation of 7-chloroquinoline-8-carboxylic acids

Details Preparation of 7-chloroquinoline-8-carboxylic acids Preparation of 7-chloroquinoline-8-carboxylic acids

1990-01-16

1991-04-09

Berch, Mark L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21548

Patent

active

050066595

ABSTRACT:
7-Chloroquinoline-8-carboxylic acids of the formula (I) ##STR1## where R is hydrogen, chlorine or methyl, are prepared by direct oxidation of the corresponding 8-methylqunoline compound with nitric acid or nitrogen oxide in the presence of sulfuric acid and a heavy metal catalyst.

REFERENCES:
patent: 3165548 (1965-01-01), Bartholome et al.
patent: 4632696 (1986-12-01), Hagen et al.
patent: 4715889 (1987-12-01), Hagen et al.
patent: 4804404 (1989-02-01), Hagen et al.
"Advanced Organic Chemistry" (3rd Ed.) by Jerry March, p. 1072 (1985).
Advanced Inorganic Chemistry by Cotton and Wilkinson, p. 821 (3rd Ed.).

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