4-hydroxy-2'-nitrobutyrophenone and...

Details 4-hydroxy-2'-nitrobutyrophenone and... 4-hydroxy-2'-nitrobutyrophenone and...

C - Chemistry, Metallurgy

07

C

C07C 205/45 (2006.01) C07C 201/12 (2006.01) C07D 307/20 (2006.01)

Patent

CA 2112414

There are provided 4-Hydroxy-2'-nitrobutyro- phenone 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-di- methoxy-2-pyrimidinyl)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-pyrimidinyl)urea.

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