申请人:FMC Corporation
公开号:US04735650A1
公开(公告)日:1988-04-05
Pyridazinylurea N-oxide plant regulators of the formula ##STR1## and acid addition salts thereof; wherein R is alkyl, cycloalkyl or phenyl optionally substituted with halogen; R.sup.1 is hydrogen or alkyl; each X independently is halogen, alkoxy, alkylthio or alkylsulfonyl; p is 0, 1 or 2; and wherein the NHCONRR.sup.1 group is bonded to the pyridazinyl ring in the 3- or 4-position; provided that (a) when X is halogen, p is 1 or 2 and the NHCONRR.sup.1 group is in the 4-position, the halogen is in at least one of the 5- and 6-positions, and (b) when X is halogen, p is 1 or 2 and the NHCONRR.sup.1 group is in the 3-position, the halogen is in at least one of the 4- and 5-positions.
吡啶嘧啶基脲氧化物植物调节剂的化学式为##STR1##及其酸盐;其中R为烷基、环烷基或苯基,可选择地被卤素取代;R.sup.1为氢或烷基;每个X独立地为卤素、烷氧基、烷基硫醚或烷基磺酰基;p为0、1或2;其中NHCONRR.sup.1基与吡啶嘧啶环中的3-或4-位置结合;前提是(a)当X为卤素,p为1或2且NHCONRR.sup.1基位于4-位置时,卤素至少位于5-和6-位置中的一个,以及(b)当X为卤素,p为1或2且NHCONRR.sup.1基位于3-位置时,卤素至少位于4-和5-位置中的一个。