Process for the preparation of 6-(arylcarbonyl)-4-oximo-dihydrob

Details Process for the preparation of 6-(arylcarbonyl)-4-oximo-dihydrob Process for the preparation of 6-(arylcarbonyl)-4-oximo-dihydrob

1998-10-07

1999-12-28

Lambkin, Deborah C.

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

Organic compounds

Carboxylic acid esters

549 23, C07C32100, C07D33504

Patent

active

060084022

ABSTRACT:
The present invention provides compounds of formula I and processes for the preparation and purification thereof. ##STR1## Compounds of formula I are useful as intermediates in the manufacture of 6-(arylcarbonyl)-4-oximino-dihydrobenzothiopyran herbicidal agents.

REFERENCES:
patent: 4919705 (1990-04-01), Shibata et al.
patent: 4925970 (1990-05-01), Brown
patent: 5468722 (1995-11-01), Shibata et al.
patent: 5506194 (1996-04-01), Nasuno et al.
Kubota et al, "Preparation of Pyrazoles and Their Use as Herbicides", CA 129:41126.
Ramadas, S.R. and Vijaya Krishna, M., Phosporous and Sulfur, 15, 311-315 (1983).
McAndrew, B.A., Journal Chemical Society, Perkin I, 1837-1846 (1979).

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