4-hydroxy-2'-nitrobutyrophenone and tetrahydro-2-(o-nitrophenyl)

Details 4-hydroxy-2'-nitrobutyrophenone and tetrahydro-2-(o-nitrophenyl) 4-hydroxy-2'-nitrobutyrophenone and tetrahydro-2-(o-nitrophenyl)

1992-12-29

1994-01-25

Ivy, C. Warren

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

568335, 568336, C07D30720, C07C 4980, C07C 4982

Patent

active

052817261

ABSTRACT:
There are provided 4-Hydroxy-2'-nitrobutyrophenone and tetrahydro-2-(o-nitrophenyl)-2-furanol and mixtures thereof, important intermediates in the preparation of the crop-selective herbicidal agent 1-{[o-(cyclopropylcarbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyrimidiny l)urea. Also provided is a method for the preparation of 4-halo-2'-nitrobutyrophenone, useful as an intermediate in the preparation of 1-{[o-(cyclopropylcarbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyrimidiny l)urea.

REFERENCES:
patent: 4075346 (1978-02-01), Sasajima et al.
patent: 5009699 (1991-04-01), Brady et al.

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