Intermediates for preparing pyrazole derivatives

Details Intermediates for preparing pyrazole derivatives Intermediates for preparing pyrazole derivatives

1999-02-16

2000-07-18

Rotman, Alan L.

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

Organic compounds

Azo

534581, C09B 3900, C09B 4100

Patent

active

060909277

ABSTRACT:
The invention relates to novel intermediates in a process for preparing compounds having the formula: ##STR1## wherein R.sub.3, R.sub.4, R.sub.6 and Ar are as defined in the description, by reaction of a compound of formula (I) with a compound of formula (II) according to the following reaction scheme: ##STR2## The compounds of formula (IV) are useful as pesticides.

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Redman et al, Journal of the Chemical Society, Perkin Transactions II, pp. 1135-1144 (1978).

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