Substituted 1-benzoyl-3-thiosemicarbazides, their manufacture and use as plant growth regulants, and agricultural formulations comprising them
申请人:Gulf Oil Corporation
公开号:EP0009324A1
公开(公告)日:1980-04-02
1-Benzoyl-3-thiosemicarbazides of formula I:
wherein
R' is -OH, -NR'R", C1-C4 alkyl or hydrogen;
Q is hydrogen, C1-C4 alkyl or C3-C6 cycloalkyl;
each of R' and R" independently is hydrogen, C1-C10 alkyl, C3-C7 alkoxyalkyl or alkoxyalkoxyalkyl, C3-C6 cycloalkyl, phenyl C1-C2 alkyl where the phenyl group is optionally substituted by halo or C1-C4 alkoxy; or R' and R" taken together with the nitrogen atom to which they are attached form a heterocyclic ring containing from 5 to 7 ring atoms;
each R2 independently is halogen, C1-C4 alkyl, C1-C4 alkoxy, nitro or trifluoromethyl;
m is 0, 1 or 2;
R3 is hydrogen, C1-C4 alkyl, C3-C4 alkenyl containing no α,β unsaturation, C1-C4 hydroxyalkyl, phenyl or benzyl;
R4 is hydrogen or C1-C4 alkyl;
Ar is naphthyl, anthranyl, phenanthryl or a group having one of the following formulae:
each R5 independently is C1-C4 alkyl, halo, nitro, C1-C4 alkoxy or C1-C4 alkylthio, provided that both ortho positions are not substituted by alkyl;
R6 is C1-C4 carbalkoxy, phenoxy, benzyloxy, phenyl, amino, C1-C4 alkylamino or di (C1-C4) alkylamino;
n is 0, 1, 2 or 3;
q is 0 or 1;
the sum of n plus q does not exceed 3; and p is 0 or 1; and agriculturally-acceptable salts and esters thereof, are useful in plant growth regulation. The preparation of these novel compounds is described.
式 I 的 1-苯甲酰基-3-硫代氨基脲:
其中
R'是-OH、-NR'R"、C1-C4 烷基或氢;
Q 是氢、C1-C4 烷基或 C3-C6 环烷基;
R'和 R "各自独立地为氢、C1-C10 烷基、C3-C7 烷氧基烷基或烷氧基烷基、C3-C6 环烷基、苯基 C1-C2 烷基(其中苯基可选择被卤素或 C1-C4 烷氧基取代);或 R'和 R "与它们所连接的氮原子一起形成含有 5 至 7 个环原子的杂环;
每个 R2 独立地为卤素、C1-C4 烷基、C1-C4 烷氧基、硝基或三氟甲基;
m为0、1或2;
R3 是氢、C1-C4 烷基、不含 α、β 不饱和的 C3-C4 烯基、C1-C4 羟基烷基、苯基或苄基;
R4 是氢或 C1-C4 烷基;
Ar 是萘基、蒽基、菲基或具有下式之一的基团:
每个 R5 独立地为 C1-C4 烷基、卤代、硝基、C1-C4 烷氧基或 C1-C4 烷硫基,条件是两个正交位置均未被烷基取代;
R6 是 C1-C4 碳烷氧基、苯氧基、苄氧基、苯基、氨基、C1-C4 烷基氨基或二 (C1-C4) 烷基氨基;
n 是 0、1、2 或 3;
q 为 0 或 1;
n 加 q 之和不超过 3;p 为 0 或 1;以及其农业上可接受的盐和酯,可用于植物生长调节。本文介绍了这些新型化合物的制备方法。