申请人:Sumitomo Chemical Company, Limited
公开号:US04070176A1
公开(公告)日:1978-01-24
A method for controlling the growth of plants, characterized by applying a plant growth regulator containing as active ingredient a benzenesulfonamide derivative represented by the general formula, ##STR1## wherein X is a halogen atom, an alkyl group having 1 to 5 carbon atoms, a nitro group, an amino group, an alkoxy group having 1 to 5 carbon atoms, an alkylthio group having 1 to 5 carbon atoms, an alkylsulfonyl group having 1 to 5 carbon atoms, or a group of the formula R.sub.3 CONH-- (where R.sub.3 is an alkyl group having 1 to 5 carbon atoms); n is an integer of 0 to 5; R.sub.1 is hydrogen, an alkyl group having 1 to 5 carbon atoms, a phenyl group, a group of the formula --(A)--COOR.sub.4 [where R.sub.4 is hydrogen, an alkyl group having 1 to 5 carbon atoms, a cation such as Na.sup.+, K.sup.+, ammonium or a quaternary ammonium ion, and (A) is a group of the formula --(CH.sub.2).sub.m -- (where m is an integer of 1 to 3), or a group of the formula ##STR2## (where R.sub.5 and R.sub.6 are individually hydrogen or an alkyl group having 1 to 5 carbon atoms)]; and R.sub.2 is a straight chain, branched chain or alicyclic alkyl group having 1 to 15 carbon atoms, a hydroxyalkyl group having 1 to 5 carbon atoms, a haloalkyl group having 1 to 5 carbon atoms, a hydroxyl group, an aminoalkyl group having 1 to 5 carbon atoms, a cyano-C.sub.1-5 -alkyl, an alkenyl group having 2 to 5 carbon atoms, a C.sub.1-5 -alkoxy-C.sub.1-5 alkyl group, a sulfoalkyl group having 1 to 5 carbon atoms, a phenyl-substituted alkyl group having 1 to 5 carbon atoms, or a group of the formula --(A)--COOR.sub.4 (where R.sub.4 and (A) are as defined above), when R.sub.1 is hydrogen; is a hydroxyalkyl group having 1 to 5 carbon atoms, a group of the formula --(A)--COOR.sub.4 (where R.sub.4 and (A) are as defined above), a group of the formula --(B)--OOCR.sub.7 [where R.sub.7 is a phenyl group or an alkyl group having 1 to 5 carbon atoms, and (B) is a group of the formula (CH.sub.2).sub.j -- (where j is an integer of 1 to 3), or a group of the formula ##STR3## (where R.sub.5 and R.sub.6 are as defined above)], when R.sub.1 is an alkyl group having 1 to 5 carbon atoms; and is a group of the formula --(A)--COOR.sub.4 (where R.sub.4 and (A) are as defined above), when R.sub.1 is a phenyl group or a group of the formula --(A)--COOR.sub.4 (where R.sub.4 and (A) are as defined above).
一种控制植物生长的方法,其特征在于施用一种植物生长调节剂,其活性成分为一种苯磺酰胺衍生物,其通式表示为##STR1##其中,X是卤素原子、具有1至5个碳原子的烷基、硝基、氨基、具有1至5个碳原子的烷氧基、具有1至5个碳原子的烷硫基、具有1至5个碳原子的烷基磺酰基或式R.sub.3 CONH--(其中R.sub.3是具有1至5个碳原子的烷基)的基团;n是0至5的整数;R.sub.1是氢、具有1至5个碳原子的烷基、苯基、式--(A)--COOR.sub.4[其中R.sub.4是氢、具有1至5个碳原子的烷基、如Na.sup. +,K.sup. +,铵或季铵离子等阳离子,(A)是式--(CH.sub.2).sub.m--(其中m是1至3的整数),或式##STR2##(其中R.sub.5和R.sub.6分别是氢或具有1至5个碳原子的烷基)]的基团;R.sub.2是具有1至15个碳原子的直链、支链或脂环烷基、具有1至5个碳原子的羟基烷基、具有1至5个碳原子的卤代烷基、羟基、具有1至5个碳原子的氨基烷基、氰基-C.sub.1-5-烷基、具有2至5个碳原子的烯基、C.sub.1-5-烷氧基-C.sub.1-5-烷基、具有1至5个碳原子的磺酰基烷基、具有1至5个碳原子的苯基取代烷基或式--(A)--COOR.sub.4(其中R.sub.4和(A)如上所定义),当R.sub.1是氢时;是具有1至5个碳原子的羟基烷基、式--(A)--COOR.sub.4(其中R.sub.4和(A)如上所定义)、式--(B)--OOCR.sub.7[其中R.sub.7是苯基或具有1至5个碳原子的烷基,(B)是式(CH.sub.2).sub.j--(其中j是1至3的整数),或式##STR3##(其中R.sub.5和R.sub.6如上所定义),当R.sub.1是具有1至5个碳原子的烷基时;是式--(A)--COOR.sub.4(其中R.sub.4和(A)如上所定义),当R.sub.1是苯基或式--(A)--COOR.sub.4(其中R.sub.4和(A)如上所定义)时。