申请人:FMC Corporation
公开号:US04818271A1
公开(公告)日:1989-04-04
Pyridinylurea compounds of the formula ##STR1## and acid addition salts thereof; wherein R is cyclo alkyl, alkenyl, or an alkyl group optionally substituted with halogen, hydroxy, cycloalkyl, alkoxy, dialkylamino or phenyl; R.sup.1 is hydrogen or alkyl; R and R.sup.1 together with the nitrogen atom of the NRR.sup.1 group optionally define a heterocycle containing 4 to 6 ring carbon atoms; X is hydrogen, halogen, haloalkyl, alkoxy, alkylthio or alkylsulfonyl; Y is hydrogen, halogen, haloalkyl, alkoxy, alkylthio or alkylsulfonyl; and wherein the NHCONRR.sup.1 group is bonded to the pyridinyl ring in the 3- or 4-position; provided that at least one of X and Y is other than hydrogen and when both R and R.sup.1 are alkyl, R is 1,1-dimethylethyl or cyclopentyl and R.sup.1 is methyl. The compounds are useful in agriculture as plant growth regulators.
式为##STR1##的吡啶基脲化合物及其酸加成盐;其中R是环烷基,烯基或取代有卤素、羟基、环烷基、烷氧基、二烷基氨基或苯基的烷基基团;R.sup.1是氢或烷基;R和R.sup.1与NRR.sup.1基团的氮原子一起可选地定义含有4到6个环碳原子的杂环;X是氢,卤素,卤代烷基,烷氧基,烷硫基或烷基磺酰基;Y是氢,卤素,卤代烷基,烷氧基,烷硫基或烷基磺酰基;其中NHCONRR.sup.1基团与吡啶基环在3-或4-位上连接;但至少X和Y中的一个不是氢,当R和R.sup.1都是烷基时,R是1,1-二甲基乙基或环戊基,而R.sup.1是甲基。这些化合物在农业中作为植物生长调节剂有用。