Jeffrey W Stack

US Patent:

53649680, Nov 15, 1994

Filed:

Dec 2, 1993

Appl. No.:

8/161382

Inventors:

Marco P. Burello - Cleveland OH
Jeffrey G. Stack - Painesville OH
David A. Cortes - Fairless Hills PA

Assignee:

American Cyanamid Company - Wayne NJ

International Classification:

C07C20936

US Classification:

564416

Abstract:

There is provided o-nitrophenyl cyclopropyl ketone, a key intermediate in the manufacture of the crop-selective, herbicidal agent 1-{[o-(cyclopropylcarbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyrimidiny l)urea and a method for the preparation of said ketone from dihydro-3-acetyl-2(3H)-furanone and o-nitrobenzoyl halide.

US Patent:

54535450, Sep 26, 1995

Filed:

Aug 9, 1994

Appl. No.:

8/287733

Inventors:

Marco P. Burello - cleveland OH
Jeffrey G. Stack - Painesville OH
David A. Cortes - Fairless Hills PA

Assignee:

American Cyanamid Co. - Wayne NJ

International Classification:

C07C20506

US Classification:

568306

Abstract:

There is provided o-nitrophenyl cyclopropyl ketone, a key intermediate in the manufacture of the crop-selective, herbicidal agent 1-{[o-(cyclopropylcarbonyl)phenyl]sulfamoyl}-3-(4,6-dimethoxy-2-pyrimidiny l)urea and a method for the preparation of said ketone from dihydro-3-acetyl-2(3H)-furanone and o-nitrobenzoyl halide.