Substituted benzenes useful as intermediates

Details Substituted benzenes useful as intermediates Substituted benzenes useful as intermediates

1992-05-20

1993-10-26

Lee, Mary C.

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

Organic compounds

Nitriles

560 11, 560 18, 562429, 562432, 568 32, 568 39, 568 54, 568 56, 568937, C07C32309, C07C32320, C07C32362

Patent

active

RE0344230

ABSTRACT:
A process for producing a 4-benzoyl-5-hydroxylpyrazole of the formula III: ##STR1## which comprises reacting carbon monoxide and a 5-hydroxypyrazole of the formula II: ##STR2## with a substituted benzene of the formula I: ##STR3## in the presence of a base and a catalyst of Group VIII of the Periodic Table.

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Nakada et al., "Photochemical Dehalogenations of Polyhalobenzenes", Bull. Chem. Soc. Japan, 56(8), 2447-2451 (1983).

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