Process for the preparation of 6-(perfluoroalkyl) uracil compounds from
申请人:American Cyanamid Company
公开号:US06140270A1
公开(公告)日:2000-10-31
An improved process for the preparation of 6-(perfluoroalkyl)uracil compounds having the structural formula I ##STR1## from 2-(N,N-disubstituted)amino-4-(perfluoroalkyl)-1,3-oxazin-6-one compounds having the structural formula II ##STR2##
3-(1,2-Benzisothiazol- and isoxazol-5-yl)-2,4(1H,3H)-pyrimidinedione or
申请人:American Cyanmid Company
公开号:US06156700A1
公开(公告)日:2000-12-05
There are provided 3-(1,2-benzisothiazol- and isoxazol-5-yl)-2,4(1H,3H)-pyrimidinedione or thione compounds of formula I and 3-(1,2-benzisothiazol- and isoxazol-5-yl)-4(3H)-pyrimidinone or thione compounds of formula II ##STR1## Further provided are compositions and methods comprising those compounds for the control of undesirable plant species.
3-(1,2-benzisothiazol- and isoxazol-5-Y1)-2,4(1H,3H)-pyrimidinedione or thione and 3-(1,2-benzisothiazol- and isoxazol-5-y1)-4(3H)-pyrimidinone or thione herbicidal agents