CN1049772A - 棉株脱叶剂 - Google Patents
棉株脱叶剂 Download PDFInfo
- Publication number
- CN1049772A CN1049772A CN90107592A CN90107592A CN1049772A CN 1049772 A CN1049772 A CN 1049772A CN 90107592 A CN90107592 A CN 90107592A CN 90107592 A CN90107592 A CN 90107592A CN 1049772 A CN1049772 A CN 1049772A
- Authority
- CN
- China
- Prior art keywords
- methyl
- alkyl
- hydrogen
- group
- cotton plant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 229920000742 Cotton Polymers 0.000 title description 11
- -1 methoxyl group Chemical group 0.000 claims abstract description 42
- 240000002024 Gossypium herbaceum Species 0.000 claims abstract description 31
- 235000004341 Gossypium herbaceum Nutrition 0.000 claims abstract description 31
- 239000003153 chemical reaction reagent Substances 0.000 claims abstract description 24
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 18
- 239000001257 hydrogen Substances 0.000 claims abstract description 18
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims abstract description 16
- 229940100389 Sulfonylurea Drugs 0.000 claims abstract description 13
- 239000000654 additive Substances 0.000 claims abstract description 9
- 229910052783 alkali metal Inorganic materials 0.000 claims abstract description 9
- 150000001340 alkali metals Chemical class 0.000 claims abstract description 9
- 125000003170 phenylsulfonyl group Chemical group C1(=CC=CC=C1)S(=O)(=O)* 0.000 claims abstract description 9
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims abstract description 8
- HJHVZLOQUKOPAG-UHFFFAOYSA-N COCl(F)F Chemical compound COCl(F)F HJHVZLOQUKOPAG-UHFFFAOYSA-N 0.000 claims abstract description 3
- 125000004786 difluoromethoxy group Chemical group [H]C(F)(F)O* 0.000 claims abstract description 3
- 125000001072 heteroaryl group Chemical group 0.000 claims abstract description 3
- 125000000250 methylamino group Chemical group [H]N(*)C([H])([H])[H] 0.000 claims abstract description 3
- 150000003839 salts Chemical class 0.000 claims description 26
- 230000000694 effects Effects 0.000 claims description 23
- 150000001875 compounds Chemical class 0.000 claims description 22
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 claims description 13
- 239000002837 defoliant Substances 0.000 claims description 12
- GHDLZGOOOLEJKI-UHFFFAOYSA-N benzenesulfonylurea Chemical compound NC(=O)NS(=O)(=O)C1=CC=CC=C1 GHDLZGOOOLEJKI-UHFFFAOYSA-N 0.000 claims description 11
- 150000002431 hydrogen Chemical class 0.000 claims description 11
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims description 10
- 239000000460 chlorine Substances 0.000 claims description 10
- 229910052801 chlorine Inorganic materials 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 8
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 6
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical class OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 claims description 6
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 5
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical compound [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 claims description 4
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 claims description 4
- GDTBXPJZTBHREO-UHFFFAOYSA-N bromine Substances BrBr GDTBXPJZTBHREO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052794 bromium Inorganic materials 0.000 claims description 4
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 4
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 claims description 4
- 229910052760 oxygen Inorganic materials 0.000 claims description 4
- 239000001301 oxygen Substances 0.000 claims description 4
- 125000003118 aryl group Chemical group 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 229910052731 fluorine Inorganic materials 0.000 claims description 3
- 125000005913 (C3-C6) cycloalkyl group Chemical group 0.000 claims description 2
- 125000006012 2-chloroethoxy group Chemical group 0.000 claims description 2
- PXGOKWXKJXAPGV-UHFFFAOYSA-N Fluorine Chemical compound FF PXGOKWXKJXAPGV-UHFFFAOYSA-N 0.000 claims description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 2
- 239000005864 Sulphur Chemical group 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical group [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000011737 fluorine Substances 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 229930192474 thiophene Natural products 0.000 claims description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims 2
- 150000001447 alkali salts Chemical class 0.000 abstract description 4
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract description 2
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 abstract 1
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 9
- 239000003795 chemical substances by application Substances 0.000 description 9
- 241000219146 Gossypium Species 0.000 description 8
- 239000002253 acid Substances 0.000 description 8
- 150000001408 amides Chemical class 0.000 description 8
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- 238000011010 flushing procedure Methods 0.000 description 7
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- 159000000000 sodium salts Chemical class 0.000 description 5
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- IAZDPXIOMUYVGZ-UHFFFAOYSA-N Dimethylsulphoxide Chemical compound CS(C)=O IAZDPXIOMUYVGZ-UHFFFAOYSA-N 0.000 description 4
- 101100387924 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) DOS2 gene Proteins 0.000 description 4
- 101100467517 Schizosaccharomyces pombe (strain 972 / ATCC 24843) raf2 gene Proteins 0.000 description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000004359 castor oil Substances 0.000 description 4
- 235000019438 castor oil Nutrition 0.000 description 4
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 4
- 239000000839 emulsion Substances 0.000 description 4
- ZEMPKEQAKRGZGQ-XOQCFJPHSA-N glycerol triricinoleate Natural products CCCCCC[C@@H](O)CC=CCCCCCCCC(=O)OC[C@@H](COC(=O)CCCCCCCC=CC[C@@H](O)CCCCCC)OC(=O)CCCCCCCC=CC[C@H](O)CCCCCC ZEMPKEQAKRGZGQ-XOQCFJPHSA-N 0.000 description 4
- 239000006210 lotion Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
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- 230000008635 plant growth Effects 0.000 description 4
- 229920000151 polyglycol Polymers 0.000 description 4
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- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 244000046052 Phaseolus vulgaris Species 0.000 description 3
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- 150000002191 fatty alcohols Chemical class 0.000 description 3
- 230000035784 germination Effects 0.000 description 3
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- 238000009331 sowing Methods 0.000 description 3
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- UDPGUMQDCGORJQ-UHFFFAOYSA-N (2-chloroethyl)phosphonic acid Chemical compound OP(O)(=O)CCCl UDPGUMQDCGORJQ-UHFFFAOYSA-N 0.000 description 2
- NFAOATPOYUWEHM-UHFFFAOYSA-N 2-(6-methylheptyl)phenol Chemical compound CC(C)CCCCCC1=CC=CC=C1O NFAOATPOYUWEHM-UHFFFAOYSA-N 0.000 description 2
- DGBKTJIQJQNAIN-UHFFFAOYSA-N 2-butyl-3-methylbutanedioic acid Chemical class CCCCC(C(O)=O)C(C)C(O)=O DGBKTJIQJQNAIN-UHFFFAOYSA-N 0.000 description 2
- ANHAEBWRQNIPEV-UHFFFAOYSA-N 2-chloroethyl dihydrogen phosphate Chemical compound OP(O)(=O)OCCCl ANHAEBWRQNIPEV-UHFFFAOYSA-N 0.000 description 2
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N47/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid
- A01N47/08—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom not being member of a ring and having no bond to a carbon or hydrogen atom, e.g. derivatives of carbonic acid the carbon atom having one or more single bonds to nitrogen atoms
- A01N47/28—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N<
- A01N47/36—Ureas or thioureas containing the groups >N—CO—N< or >N—CS—N< containing the group >N—CO—N< directly attached to at least one heterocyclic ring; Thio analogues thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Agronomy & Crop Science (AREA)
- Pest Control & Pesticides (AREA)
- Plant Pathology (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Dentistry (AREA)
- General Health & Medical Sciences (AREA)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Environmental Sciences (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Indole Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Nitrogen And Oxygen As The Only Ring Hetero Atoms (AREA)
Abstract
用于棉株脱叶之试剂除含有常规添加剂外还包
含苯磺酰或杂芳磺酰脲I或者其碱金属或碱土金属
盐:
其中A是取代的苯基、苄基或杂芳基,R2是氢或甲
基,R3是甲基、甲氧基、二氟甲氧基、氯或甲氨基、R4
是甲基、甲氧基、二氟甲氧基或乙氧基,Z是CH或
N。
Description
本发明是关于用于棉株脱叶的试剂,该脱叶剂除含有常规添加剂外还包括如通式Ⅰ所示的苯磺酰或杂芳磺酰脲类或其碱金属或者碱土金属的盐类:
其中A是结构式为A-1至A-5的芳基或杂芳基:
其中R1是氯、甲酯基、乙酯基、2-氯乙氧基、或者2-甲氧基乙氧基,R2为氢或者甲基,R3为甲基、甲氧基、二氟甲氧基、氯或者甲氨基,R4为甲基,甲氧基、二氟甲氧基或者乙氧基,Z为CH或N。
本发明还涉及用于棉株脱叶之试剂,该脱叶剂除含有常规添加剂外还包括苯磺酰或杂芳磺酰脲类Ⅰ或者其碱金属或碱土金属的盐,以及作为增效剂的化合物即由N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺(Ⅱ)组成的化合物:
DE-A3413565披露了取代的苯磺酰脲类脱叶剂对棉株脱叶作用效果,其中实施例也清楚地说明通过同时干燥棉株叶可使其叶脱落。
US-A4127405描述了苯磺酰脲对于矮生菜豆的除草作用,其中苯磺酰脲的苯环在磺酰基邻位用氟原子取代或者不取代,脱叶效应被描述为除草作用的伴随症状,但是,对于棉株的脱叶效果不够理想。
另外,EP-A0291851及EP-A136061介绍了在磺酰基邻位上含有烷氧基羰基基团的苯磺酰脲类,可是,其中只描述了它的除草和生长调节作用,而未提及脱叶效应。
EP-A0318620介绍了在磺酰基之邻位上含有烷氧基羰基基团和在间位上含有杂脂肪族基的苯磺酰脲类,但是,也只描述了这些物质的除草和生长调节特性,它们对棉株具有生长抑制作用。
DE-A3413490介绍了在磺酰基邻位上含有烷氧基羰基的苯磺酰脲类,其中烷氧基羰基的烷氧基部分还带有肟基,尽管该文献指出这些化合物作脱叶剂的可能应用,但是强调棉作物应具有良好的耐受度,这些化合物才可以用作棉作物的除草剂。
EP-A7687介绍了在磺酰基邻位上带有烷氧基羰基之苯磺酰脲类对于矮生菜豆的脱叶效应,对于幼期棉株只有除草作用而没有脱叶作用。
在EP-A237292、EP-A30142和US4127405中介绍了杂芳磺酰脲类可以用作除草剂,有些情况下发现对于矮生菜豆还具有相应的脱叶作用。
人们也知道,一般来说,磺酰脲类的生物作用起始是非常缓慢的,Proc.Br.Crop.Prot.Conf.Weeds 1980,I 7-14指出,在用磺酰脲Glean 处理时,敏感作物的除草作用或干枯进行得很缓慢,并伴随有缺绿病和枯斑,以及嫩枝的干枯和叶脉的脱色现象。
DE-A3905916披露了N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺用于植物组织的干燥和脱落。
在用作促进作物收获之脱落剂和干燥剂方面具有很大的商业效益。尤其是在大规模棉作物载培中,为有效利用收割机收获作物荚壳,采用脱叶剂是基本要求,鉴于收获的原因,在对绿叶部分脱叶时最好使残留作物的干燥和枯萎进行彻底,否则,受枯萎叶残留物所带进的污垢而严重影响纤维质量。另外,到目前为止所采用的脱叶剂根本不能有效地防止植物叶的再发芽,而且,工业有机磷化合物含有难以接受的臭味,受到环境兼容性限制,还有,脱叶作用对温度的依赖性也不可取,如在有N-苯基-N′-(1,2,3-噻唑-5-基)-脲时便出现这种情况。
本发明的目的在于提供新的和更好的脱叶剂,特别适用于棉株。
我们发现本发明的目的可以通过将本文开始时所定义的脱叶试剂用用于棉株脱叶而实现。
特别优选的化合物Ⅰ,其中的取代基具有如下含义:
A是由R1取代的苯基A-1,R2是氢,R3是氯、甲基或甲氧基,R4是甲基或甲氧基,Z是CH或N;化合物Ⅰ或者为这样的磺酰脲类,其中A是基团A-5,R2是氢,R3是甲基,R4是甲氧基,Z是N。
表1和表2中所列的例子是商业品。
表2
杂芳磺酰脲Ⅰb(其中A=A-2至A-5,R2=H)
化合物序号 A R3R4Z 公开文献
10 A-5 CH3OCH3N EP-A30142
11 A-3 OCH3OCH3CH EP-A237292
EP-A 232 067
12 A-4 OCH3OCH3CH JP 59-219281
公开日83.4.20
CA 102,220 905
13 A-2 OCH3OCH2CH EP-A51466
表1和表2中所列出的商品是已知的,例如商品名为Glean Ally 、Express 、Logran 、Setoff 、Muster 、Londax 、Oust 、Classic 、Beacon 、Harmony 或者Remedy 。这些产品按照引用文献所述的方法便可进行制备。
化合物Ⅰ呈酸性,因为位于磺酰基与羰基之间之氮原子上的质子很容易失去,因此,加碱便可以得到相应的碱式盐,适合的碱为碱金属或碱土金属氢氧化物,例如氢氧化钠、氢氧化钾或者碱金属或碱土金属醇化物,优先采用的甲醇钠或甲醇钾。
苯磺酰或杂芳磺酰脲Ⅰ适合作收获棉桃前之棉株的脱叶剂,它以非常低的施用比率发生作用,而且有效地防止新芽的生长。有关作用方式,绿色肿胀的叶的脱叶作用胜过其干燥作用,因此有助于获得较高的纤维质量。
采用喷雾、雾化、撒粉、撒播或浇淋便可以使用苯磺酰或杂芳磺酰脲Ⅰ,例如呈直接可喷雾的溶液形式,粉以及悬浮液形式使用,包括浓缩的水溶液、油状或其它悬浮液、分散液、乳化液、油分散液、膏体、粉末、撒播剂或颗粒。施用方式完全取决于预定的应用,在任何情况下都要保证其活性成分均匀分散。
含有中熔点和高熔点的矿物油组分如煤油、柴油、煤焦油、植物油、动物油、脂肪烃、环烃和芳香烃类如苯、甲苯、二甲苯、石腊、四氢化萘、烷基化萘或其衍生物如甲醇、乙醇、丙醇、丁醇、氯仿、四氯化碳、环己醇、环己酮、氯苯或异佛尔酮、或强极性溶剂,如二甲基甲酰胺、二甲基亚砜、N-甲基吡咯烷酮或水比较适合于制备直接喷雾溶液、乳化液、膏体或油分散液。
通过加水可以将上述乳化液浓缩物、膏体或可润湿的粉末(喷雾粉、油分散液)制备成水溶液状应用,为制备乳化液、膏体或油分散液,可通过采用润湿剂、粘合剂、分散剂或乳化剂将溶于油或溶剂中的此类物质在水中进行均质,不过,也可以制备出由活性物、润湿剂、粘合剂、分散剂或乳化剂以及可能的溶剂或油组成的、适合用水稀释的浓缩物。
适宜的表面活性剂有木素磺酸、萘磺酸及苯磺酸的碱金属、碱土金属盐和铵盐、烷芳基磺酸盐、烷基硫酸盐、烷基磺酸盐、二丁基萘磺酸的碱金属和碱土金属盐类、月桂醚硫酸盐、脂肪醇硫酸盐、脂肪酸碱金属和碱土金属盐、硫酸化十六烷醇、十七烷醇及十八烷醇的盐、硫酸化脂肪醇乙二醇醚的盐、磺化萘和萘衍生物与甲醛的缩合物、萘或萘磺酸与苯酚和甲醛的缩合物、聚氧乙烯辛基酚醚、乙氧基化异辛基酚、辛基酚、壬基酚、烷基酚聚乙二醇醚、三丁基苯基聚乙二醇醚、烷芳基聚醚醇、异十三醇、脂肪醇/环氧乙烷缩合物、乙氧基化蓖麻油、聚氧乙烯烷基醚、乙氧基化聚氧丙烯、月桂醇聚乙二醇醚乙缩醛、山梨醇酯、木素亚硫酸盐废液以及甲基纤维素。
通过将活性组分与固形载体结合可以制备出粉末状的、可撒播的、涂层的、浸渍过的均匀颗粒。固形载体可以是矿土、如硅胶、硅石、硅酸盐、滑石、陶土、attaclay、石灰石、石灰、白垩、红玄武土、黄土、粘土、白云土、硅藻土、硫酸钙、硫酸镁、氧化镁、研磨塑料、肥料如硫酸铵、磷酸铵、硝酸铵、尿素及植物产品,如谷物粗粉、磨碎的树皮、木粉填料、坚果外壳粉、纤维素粉及其它固形载体。
按重量计,配方中含有0.1~95,优选为0.5~90的活性组分。
配方实施例如下:
Ⅰ.将90份(重量)1号化合物与10份N-甲基-2-吡咯烷酮混合,获得适合于呈非常小的液滴状使用的溶液。
Ⅱ.将20份(重量)2号化合物溶于由下列成分组成的混合物中;80份二甲苯、10份由8~10摩尔环氧乙烷与1摩尔油酸N-单乙醇酰胺组成的加合物、5份十二烷基苯磺酸钙盐及5份由40摩尔环氧乙烷与1摩尔蓖麻油组成的加合物。通过将该溶液倒入100,000份水中使其均匀分散于水中,从而获得活性组分含量为0.02%(重量)的分散水溶液。
Ⅲ.将20份(重量)11号化合物溶于由下列成分组成的混合物中:40份环己酮、30份异丁醇、20份由7摩尔环氧乙烷与1摩尔异辛基苯酚组成的加合物以及10份由40摩尔环氧乙烷与1摩尔蓖麻油组成的加合物。通过将该溶液倒入100,000份水中使其均匀分散,获得活性组分含量为0.02%(重量)的分散水溶液。
Ⅳ.将20份(重量)11号化合物溶解于由下列成分组成的混合物中:25份环己醇、65份沸点为210~280℃的矿物油组分及10份由40摩尔环氧乙烷与1摩尔蓖麻油组成的加合物。通过将该溶液倒入100,000份水中使其均匀分散,获得活性组分含量为0.02%(重量)的分散水溶液。
Ⅴ.将20份(重量)4号化合物与3份二异丁基萘2-磺酸钠盐、17份由亚硫酸废液提取之木素磺酸钠盐及60份硅胶粉末进行充分混合,于锤磨机中将混合物磨细,通过将混合物均匀分散于20,000份水中,获得活性组分含量为0.1%(重量)的喷洒液。
Ⅵ.将3份(重量)7号化合物与97份粉碎陶土混合,采用这种方法便可以获得活性组分含量为3%(重量)的粉剂。
Ⅶ.将30份(重量)9号化合物与由92份硅胶粉和8份石蜡油组成的混合物进行充分混合,混合物被喷雾到硅胶表面,采用这种方法获得具有良好粘合性的活性组分配方。
Ⅷ.将20份(重量)8号化合物与2份十二烷基苯磺酸钙、8份脂肪醇聚乙二醇醚、2份苯磺酸/脲/甲醛缩合物的钠盐及68份石蜡矿物油充分混合,获得稳定的油状分散液。
Ⅸ.将10份(重量)10号化合物与4份二异丁基萘-2-磺酸钠盐、20份由亚硫酸废液提取的木素磺酸钠盐、38份硅胶及38份陶土充分混合,于锤磨机中将混合物锤磨,通过将混合物均匀分散于10,000水中,获得活性组分含量为0.1%(重量)的喷洒液。
例如,采用具有增效作用的添加剂如有机溶剂、润湿剂和油可以改善其作用和作用速率。这样就可以使得实际活性组分应用比率减少。
主要是通过喷雾植物叶将试剂施用于植物,例如采用水作载体按大约100~1,000升/公顷(l/ha)喷洒液的传统喷洒法进行使用,其试剂可以采用低体积和超低体积方法还可以微粒状使用。
使用新试剂时其施用比率为0.1~3,000,较好的为0.5~1,000,最好为1~500克/公顷(g/ha)。
该试剂既可单独使用,也可以与其它试剂或其它活性组分混合使用。必要时也可以添加其它脱叶剂、干燥剂、作物保护剂或农药,这取决于预期用途。
我们还发现新试剂与如下所述活性组分(A)-(C)组成的混合物能更好地控制棉株干燥或脱叶后不希望有的再发芽。从而保证或提高有效脱叶:
(A)除草活性组分包括:
a.乙酰氯苯胺,例如2-氯-N-(2,6-二甲基苯)-N-(1H-吡唑基-1-甲基)-乙酰胺(通称:metazachlor),公开于德国公开号DOS2,648,008;
b.取代喹啉-8-羧酸,例如3,7-二氯喹啉-8-羧酸,公开于EP-A104389,以及3-甲基-7-氯喹啉-8-羧酸,公开于EP-A60429;
c.环己酮衍生物,例如2-〔(1-乙氧基亚氨基)-丁基〕-5-〔2-(乙硫基)-丙基〕-3-羟基-2-环己烯基-1-酮(通称:sethoxydim),公开于德国公开DOS2,822,304,以及2-〔1-乙氧基亚氨基)-丁基〕-3-羟基-5-(2H-四氢噻喃-3-基)-2-环己烯基-1-酮(通称:cycloxydim),公开于德国公开DOS3,121,355,
d.苯氧基烷烃羧酸,如(4-氯-2-甲基苯氧基)-乙酸;
e.3-异丙基-1H-2,1,3-苯并噻二嗪-4(3H)-酮2,2-二氧化物,公开于德国公开DOS1,542,836(Bentazon );
f.二硝基苯胺,如N-(1-乙基丙基)-3,4-二甲基-2,6-二硝基苯胺,公开于德国公开DOS2,241,408;
g.咪唑啉酮,如2-〔4,5-二氢化-4-甲基-4-(1-甲基乙基)-5-氧代-1H-咪唑-2-基〕-3-喹啉-羧酸(Scepter );
h.3,4,5,6-四氢苯邻二甲酰亚胺,例如N-〔5-乙基α-氯丙烯酸盐)-4-氯苯基〕-3,4,5,6-四氢苯邻二甲酰亚胺,公开于EP-A0240659,
i.二苯醚,如5-〔2-氯-4-(三氟甲基)-苯氧基〕-2-硝基苯甲酸钠盐(Blazer ),公开于DE-A2311638,或者乙氧基羰基甲基5-〔2-氯-4-(三氟甲基)-苯氧基〕-2-硝基苯甲酸盐(Superblazer )。
优选混合组分有:2-甲基-6-乙基乙氧基甲基-2-乙酰氯苯胺,2-甲基-6-乙基-N-(甲氧基-1-甲基乙基)-2-乙酰氯苯胺,2,6-二甲基-N-(1H-吡唑基-1-甲基)-2-乙酰氯苯胺,2,6-二甲基-N-(甲氧基甲基)-2-乙酰氯苯胺,3-甲基-7-氯喹啉-8-羧酸(盐、酯),3,7-二氯喹啉-8-羧酸(盐、酯),2-〔(1-乙氧基亚氨基)-丁基〕-5-〔2-乙硫基)-丙基〕-3-羟基-2-环己-1-酮(盐),2-〔(1-反式-氯烯丙氧基亚氨基)-丁基〕-5-〔2-(乙硫基)-丙基〕-3-羟基-2-环己-1-酮(盐),2-〔(1-反式-氯烯丙氧基亚氨基)-丙基〕-5-〔2-(乙硫基)-丙基〕-3-羟基-2-环己-1-酮(盐),2-〔(1-乙氧基亚氨基)-丁基〕-5-〔2H-四氢噻喃-3-基)-3-羟基-2-环己-1-酮(盐),2-〔(1-乙氧基亚氨基)-丙基〕-5-(2,4,6-三甲基苯基)-3-羟基-2-环己-1-酮(盐)、2-甲基-4-氯苯氧基乙酸(盐、酯、酰胺),2-〔2-甲基-4-氯苯氧基〕-丙酸(盐、酯、酰胺),4-〔2-甲基-4-氯苯氧基〕-丁酸(盐、酯、酰胺),4-〔2,4-二氯苯氧基〕-丁酸(盐、酯、酰胺)、2-〔2,4-二氯苯氧基〕-丙酸(盐、酯、酰胺),2,4-二氯苯氧基乙酸(盐、酯、酰胺)、3,5,6-三氯吡啶基-2-氧代乙酸(盐、酯、酰胺),3-(1-甲基乙基)-1H-2,1,3-苯并噻二嗪-4-(3H)-酮2,2-二氧化物(盐),3-(1-甲基乙基)-1-氰基-2,1,-3-苯并噻二嗪-4-(3H)-酮2,2-二氧化物(盐),N-(1-乙基丙基)-3,4-二甲基-2,6-二硝基苯胺,2-〔4,5-二氢-4-甲基-4-(1-甲基乙基)-5-氧代-1H-咪唑基-2-基〕-3-喹啉羧酸、N-〔5-(乙基α-氯丙烯酸盐)-4-氯苯基〕-3,4,5,6-四氢苯邻二甲酰亚胺,钠5-〔2-氯-4-(三氟甲基)-苯氧基〕-2-硝基苯甲酸盐,乙氧基羰基甲基5-〔2-氯-4-(三氟甲基)-苯氧基〕-2-硝基苯甲酸盐、5-〔2-氯-4-(三氟甲基)-苯氧基〕-2-硝基苯甲酸甲基磺酰胺。
(B)脱叶剂和干燥剂,如参见《棉株基础参考丛书》(Ⅰ)第14章143~153页“棉株生理学-棉株生产脱叶生理学”由Cathey,G.W.1986出版,(Physiology of defoliation in Cotton Production,in Cotton Physiology(J.R.Mauney,J.McD.Stewart著)The Cotton Foundation Reference Book Series No.1,Chapter 14,143-153),以及《BARC专题论文集》(8)第61~74页,题为“农业化学药品展望-脱落与干燥化学操作”,由Morgan,P.W.1985出版,(Chemical manipulation of abscission and desiccation,in Agricultural Chemicals of the Future(J.L.Hilton,著)BARC Symposium 8,61-74,Rowman & Allanheld,Totowa)。
a.脲衍生物,如N-苯基-N′-1,2,3-噻二唑-5-基脲、公开于德国公开DOS2,506,690和DOS2,619,861,N-苯基-N′-1,3,4-噻二唑-2-基脲,公开于德国公开DOS3,612,830,或者N-苯基-N′-2-氯吡啶-3-基脲,公开于德国公开DOS2,843,722;
c.S、S、S-三丁基三硫代磷酸盐和S、S、S-三丁基三硫代亚磷酸盐;
f.氯化镁和氯化钠;
g.1,2-二氢哒嗪-3,6-二酮;
h.7-恶二环〔2.2.1〕庚烷-2,3-二羧酸(通称endothall);
i.6,7-二氢二吡啶酚(1,2-α:2′,1′-C)吡啶鎓离子,如二溴-水合盐(通称diquat)及1,1′二甲基-4、4′-二吡啶鎓离子如二氯或二甲基硫酸盐(通称Paraquat)。
优选的混合物成分为:N-苯基-N′-1,2,3-噻二唑-5基脲,N-苯基-N′-1,3,4-噻二唑-2-基脲、N-苯基-N′-2-氯吡啶-3-基脲,N-(3,4-二氯苯基)-N′,N′-二甲基脲,2-氯乙基膦酸,S、S、S-三丁基三硫代磷酸盐,S、S、S-三丁基三硫代亚磷酸盐,2,3-二氢-5,6-二甲基-1,4-dithiine 1,1,4,4-四氧化物,N-(膦酰基甲基)-甘氨酸(盐)、1,2-二氢哒嗪-3,6-二酮,高氯酸盐,7-恶二环〔2.2.1〕庚烷-2,3-二羧酸(盐、酯、酰胺),1,1-乙烯-2、2-二吡啶鎓二溴化物。
(c)由下列成分组成的生长阻滞剂:
a.季铵盐,包括N,N-二甲基氮杂环庚鎓盐,N,N-二甲基哌啶鎓盐,N,N-二甲基六氢哒嗪鎓盐,N,N-二甲基四氢哒嗪鎓盐,N-甲基吡啶鎓盐,N,N-二甲基吡咯烷鎓盐以及N,N,N-三甲基-N-2-氯乙基铵盐,尤其是N-2-氯乙基-N-三甲基氯化铵(通称chloromequat chloride)和N,N-二甲基哌啶鎓氯化物(通称mepiquat chloride);
b.嘧啶化合物,例如公开于US3818009及《植物生长调节期刑》(Journal of Plant Growth Regulatlon)1988、7.27(例如通称为ancymidol或flurprimidol嘧啶化合物),
c.吡啶化合物,公开于德国公开DOS3015025,
d.降冰片二氮杂环丁烯,公开于德国公开DOS2615878及DOS2742034,
e.具有生长调节作用的三唑化合物,公开于EP-A88104320.2,《1982野草国际会议文集》第1卷3页,题为“英国植物保护”,由Croydon,BCPC出版公司1982出版(in British Crop Protection,Conference-Weeds 1982,Vol.1,BCPC Publications,Croydon,1982,Page3),《植物细胞生理学》(Plant Cell Physiol.)25卷611页,《农药科学》(Pestio.Sci.)19卷153页。《农业作物科学杂志》(J.Agron.Crop Soi.)158期324页或《植物生长调节杂志》(J.Plant Growth Regul.)4期181页,例如1-苯氧基-3-(1H-1,2,4-三唑-1-基)-4-羟基-5,5-二甲基己烷,
f.2-酰基-3-羟基环己-2-烯-1-酮,如公开于EP-A126713或123001,
g.1-(4-氯苯氧基)-3,3-二甲基-1-〔1,2,4-三唑-1-基〕-丁烷-2-酮(通称triadimefon),N-〔2,4-二甲基-5-〔三氟甲基磺酰氨基〕〕-苯乙酰胺(通称mefluidide),2-氯-2′、6′-二乙基-N-〔甲氧基甲基〕-N-乙酰苯胺(通称alachlor),S-乙基二丙基硫代氨基甲酸盐(通称EPTC),琥珀2,2-二甲基酰肼(通称daminozid)。
优选的混合物成分为:N、N、N-三甲基-N-2-氯乙基铵盐,N,N-二甲基哌啶鎓盐,N-甲基吡啶鎓盐,α-环丙基-α-(4-甲氧基苯基)-5-嘧啶甲醇、α-环丙基-α-(4-三氟甲氧基苯基)-5-嘧啶甲醇,5-(4-氯苯基)-3、4、5、9、10-五氮杂四环-〔5.4.1.02,6.08,11〕十二-3,9-二酮,全-顺式-8-(4-氯苯基)-3、4、8-三氮杂四环-〔4.3.1.0.02,5.07,9〕癸-3-酮,琥珀单-N、N-二甲基酰肼,乙基N、N-二丙基硫代氨基甲酸盐,N-2,4-二甲基-5-(三氟甲基)-磺酰氨基苯基乙酰胺,1-(4-氯苯氧基)-3,3-二甲基-1-(1,2,4-三唑-1-基)-2-丁酮,2-丙基羰基-5-乙氧基羰基-3-羟基-2-环己烯-1-酮,1-(1,2,4-三唑-1-基)-1-甲氧基-2-(2,4-二氯苯基)-丙-2-醇,2,2-二甲基-4-(1,2,4-三唑-1-基)-6-苯氧基己-3-醇,2,2-二甲基-4-(1,2,4-三唑-1-基)-5-(4-氯苯基)-戊-3-醇,2,2-二甲基-4-(1,2,4-三唑-1-基)-5-(4-氯苯基)-戊-4-烯-1-醇,2,2-二甲基-4-(1,2,4-三唑-1-基)-5-环己基戊-4-烯-3-醇,1-(5-甲基-1,3-二恶烷-5-基)-4-(1,2,4-三唑-1-基)-4-(4-三氟甲基苯基)-丙烯-2-醇、
当将化合物Ⅰ与取代N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺Ⅱ混合时,可以获得特别优良的混合物:
其中R5是氢、氟或氯、R6是:
a)基团:
其中R7是氢、氯、溴、氰基或者C1-C6-烷基,R8是氢、C1-C3-烷基、C1-C8-链烯基、C3-或C4-炔基、C1-C8-烷氧基烷基、C1-C8-烷基硫代烷基、苯基-C1-C8-烷基或C3-C6-环烷基、或者
b)基团
其中X是氧或硫,n是0或1,R9是氢或C1-C4烷基,它们可以被羟基、卤素、氰基、巯基、C1-C4-烷氧基、C1-C4-硫代烷基、C1-C4烷基羰基氧或C1-C4-烷氧基羰基-C1-C4-硫代烷基所取代,R10是氢或C1-C3-烷基,或者
c)基团OR11,
其中R11是C1-C4-烷基,C3-或C4-链烯基,C3-或C4-炔基,C1-C4-烷基羰基,C1-C4-烷氧基羰基-C1-C4-烷基,尤其是四氢糠基、二氢吡喃甲基、二氢硫代吡喃甲基、四氢吡喃甲基或四氢硫代吡喃甲基。
由化合物Ⅰ与N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺Ⅱa组成的混合物,其中R5定义同上,R6是基团:
其中R7和R8定义同上,优选的是R7为氯或溴,R8是C1-C4-烷基,例如最好乙基或甲基。
DE-A3905916详细介绍了N-取代四氢苯邻二甲酰亚胺Ⅱ的制备过程,它们可由3,4,5,6-四氢邻苯二甲酸酐以及相应取代的苯胺衍生物获得,即可以通过还原相应硝基化合物来获得。通常,反应要在20~200℃,较好的为40~150℃,于惰性溶剂中进行,合适溶剂的例子是低链烷羧酸,例如冰乙酸或丙酸,或者是非质子传递溶剂,如甲苯或二甲苯,且有酸性催化剂存在,如芳族磺酸。化合物Ⅱ和Ⅱa的制备可以与下列文件中所介绍的方法相类似进行制备,EP-A240659、300387、300398、236916、313963、319791及320677或DE-A-3109035及3533440或GB-A2071100。
苯磺酰或杂芳苯磺酰脲Ⅰ与四氢苯邻二甲酰亚胺Ⅱ可以按100∶1~1∶100(重量)比的混合物进行使用,较好比例是50∶1~1∶50。
使用实例
以下是用作比较试剂:
A.6,7-二氢二吡啶酚(1,2-α:2′.1′-C)吡啶鎓,如二溴化-水合盐(diquat),
公开于DE-A3413565以及
E 增效剂
公开于EP-A0240659。
活性组分呈预调配成的商品形式被使用,或者按以下所述进行调配:
将10份(重量)8-D的每种化合物4份二异丁基萘-α-磺酸钠盐,20份由亚硫酸盐废液制备的木素磺酸钠盐,38份硅胶及38份陶土充分混合,于锤磨机中将混合物磨细,通过将混合物均匀分散于10,000份水中,获得活性组分含量为0.1%(重量)的喷洒液。
按照第9页例Ⅲ配方调配化合物E
配方中水的量变为1000l/ha(升/公顷)。
所用实验作物是于温室条件(相对湿度为50~70%)下生长的各种Stoneville 825品种的新生6片叶棉株。
使用实例1
用所述的活性组分配方水溶液(按喷洒液重量计,加有0.15%脂肪醇烷氧基化物Plurafac LF700)处理棉株叶至流出液滴。使用活性组分10天以后,测量脱落的叶片数及脱叶度(用%表示)。没有处理过的对照棉株则没有出现叶片脱落现象。18天以后测量棉株的再发芽情况(白天/夜晚温度25/18℃)。
〔注:++++表示大量再发芽,+表示少量再发芽,0表示没有再发芽)含有活性组分 转变过的 脱叶(程度) 再发芽
的试剂序号 施用比率〔公斤/公顷〕 〔%〕
1 0.016 90*0
2 0.016 100*0
10 0.016 83 0
3 0.016 67 +
4 0.016 90 0
13 0.016 68 ++++
8 0.016 91 ++
比较试剂A 0.250 65*++++
比较试剂B 0.250 46 ++++
*)表示叶片可检测的干燥(枯萎)症状。
使用实例1的结果表明,即使采用较低的施用比率,新试剂也会使作物脱叶并且有效地抑制再发芽,其效果明显优于比较试剂。
使用实例2
用所述的活性组分配方水溶液(按喷洒液重量计,加有0.15%脂肪醇烷氧基化物Plurafac LF700)处理棉株叶至流出液滴,使用活性组分9天以后,测量脱落的叶片数及脱叶度,没有处理过的对照棉株则未出现叶片脱落现象(白天/夜间温度25/18℃)。
含有活性成份 转变过的施用 脱叶(程
的试剂序号 比率(公斤/公顷) 度)〔%〕
1 0.032 80*
2 0.032 91*
10 0.032 82
4 0.032 82
13 0.032 45
8 0.032 97*
7 0.032 84
9 0.032 47
比较试剂A 0.032 0
0.1 0
比较试剂B 0.032 0
0.1 0
比较试剂C 0.032 34
比较试剂D 0.032 0
*)表示叶片可检测的干燥(枯萎)症状。
使用实施例2结果表明,与商业活性组分A、B、C以及苯磺酰脲D相比,新试剂作为脱叶剂具有明显优良的作用。
使用例例3
用所述的活性组分配方水溶液(按喷洒液重量计,加有0.15%脂肪醇烷氧基化物Plurafac LF700)处理棉株叶至流出液滴,使用活性组分13天以后,测量脱落叶片数及脱叶度,没有处理过的对照棉株则未出现叶片脱落现象,21天以后,检测棉株的再发芽情况(白天/夜间温度26/18℃)。〔注:++++表示大量再发芽,+表示少量再发芽,0表示没有再发芽)
含活性成份 转变过的施用比率 脱叶(程度) 再发芽
的试剂序号 〔公斤/公顷〕 〔%〕
10 0.016 80 ++
10+E 0.016+0.125 94 +
E 0.125 77 ++++
结果表明,N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺E增加了噻吩磺酰脲10作为棉株脱叶剂的活性,并且大大抑制了棉株再发芽。
Claims (6)
2、用于棉株脱叶之试剂,除含有常规添加剂外还包括苯磺酰或杂芳酰脲类Ⅰ或者其碱金属或碱土金属的盐,以及作为增效剂的N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺分子式为Ⅱa组成的化合物:
其中R5是氢、氟或氯,R6是
a)基团:
其中R7是氢、氯、溴、氰基或者C1-C6-烷基,R8是氢、C1-C8-烷基、C1-C8链烯基,C3-或C4-炔基,C1-C8-烷氧基烷基,C1-C8-烷基硫代烷基、苯基-C1-C8-烷基或C3-C6-环烷基,或者
b)基团:
其中X是氧或硫,n是0或1、R9是氢或C1~C4烷基,它们可以被羟基、卤素、氰基、巯基、C1-C4-烷氧基、C1-C4-硫代烷基、C1-C4-烷基羰基氧或C1-C4-烷氧基羰基-C1-C4-硫代烷基所取代,R10是氢或C1-C3-烷基,或者
c)基团:OR11,其中R11是C1-C4-烷基、C3-或C4链烯基、C3-或C4-炔基、C1-C4-烷基羰基、C1-C4-烷氧基羰基-C1-C4-烷基、尤其是四氢糠基、二氢吡喃甲基、二氢噻喃甲基、四氢吡喃甲基或四氢噻喃甲基。
3、用于棉株脱叶之试剂,除含有常规添加剂外还包含如权利要求1的或2所述的苯磺酰脲Ⅰ,其中A是由R1取代的苯基A-1,R2是氢,R3是甲基或甲氧基,R4是氯、甲基或甲氧基,Z是CH或N。
4、用于棉株脱叶之试剂,除含有常规添加剂外还包含如权利要求1或2所述的噻吩磺酰脲Ⅰ,其中A是基团A-5,R2是氢、R3是甲基、R4是甲氧基、Z是氮。
5、用于棉株脱叶之试剂,除含有常规添加剂外还包含苯磺酰或杂芳苯磺酰脲Ⅰ以及如权利要求2所述的作为增效剂的N-苯基-3,4,5,6-四氢苯邻二甲酰亚胺分子式为Ⅱa,其中R6是氢,R6是基团:
其中R7是氯或溴,R8是甲基或乙基。
6、用于棉株脱叶的方法,其中如权利要求1或2或3或4或5所述试剂具有脱叶剂作用的用量为对于棉株能够产生脱叶作用。
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DE3926056 | 1989-08-07 |
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CN (1) | CN1049772A (zh) |
AU (1) | AU628613B2 (zh) |
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ES (1) | ES2032251B1 (zh) |
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IL (1) | IL95268A (zh) |
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CA1082189A (en) * | 1976-04-07 | 1980-07-22 | George Levitt | Herbicidal sulfonamides |
DK163123C (da) * | 1978-05-30 | 1992-06-09 | Du Pont | Benzensulfonylurinstoffer til anvendelse som herbicider eller plantevaekstregulatorer, praeparat indeholdende dem samt deres anvendelse |
CA1330438C (en) * | 1980-07-17 | 1994-06-28 | Willy Meyer | N-phenylsulfonyl-n'-pyrimidinyl-and-triazinylureas |
EP0124295B1 (en) * | 1983-04-04 | 1991-04-03 | E.I. Du Pont De Nemours And Company | Stabilized aqueous formulations of sulfonylureas |
US4548638A (en) * | 1983-08-22 | 1985-10-22 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonylureas |
DE3413490A1 (de) * | 1984-04-10 | 1985-10-17 | Bayer Ag, 5090 Leverkusen | 2-(alkoximinoalkyloxycarbonyl)-phenylsulfonylharnstoffe |
DE3413565A1 (de) * | 1984-04-11 | 1985-10-24 | Bayer Ag, 5090 Leverkusen | Substituierte sulfonylharnstoffe |
HU193933B (en) * | 1984-06-08 | 1987-12-28 | Nitrokemia Ipartelepek | Herbicide or plant growth stimulating agent comprising beta-cyclodextrin complex of benzolsulphonylurea derivative and process for preparing the active substances |
JPS61103809A (ja) * | 1984-10-25 | 1986-05-22 | Sumitomo Chem Co Ltd | 除草組成物 |
JPH0662373B2 (ja) * | 1984-11-13 | 1994-08-17 | 住友化学工業株式会社 | 除草組成物 |
US4678498A (en) * | 1985-06-12 | 1987-07-07 | E. I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
CA1308101C (en) * | 1986-12-08 | 1992-09-29 | Paul Hsiao-Tseng Liang | Herbicidal pyridinesulfonylureas |
JPS63179805A (ja) * | 1987-01-22 | 1988-07-23 | Sumitomo Chem Co Ltd | 除草組成物 |
DE3716657A1 (de) * | 1987-05-19 | 1988-12-01 | Basf Ag | Herbizide sulfonamide, verfahren zu ihrer herstellung und ihre verwendung zur beeinflussung des pflanzenwachstums |
EP0318620A1 (en) * | 1987-12-04 | 1989-06-07 | E.I. Du Pont De Nemours And Company | Herbicidal sulfonamides |
DE3816703A1 (de) * | 1988-05-17 | 1989-11-30 | Hoechst Ag | Heterocyclisch substituierte phenoxysulfonylharnstoffe, verfahren zu ihrer herstellung und ihre verwendung als herbizide oder pflanzenwachstumsregulatoren |
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IL95268A (en) | 1994-04-12 |
GR1000748B (el) | 1992-12-30 |
GR900100559A (en) | 1991-12-30 |
BR9003844A (pt) | 1991-09-03 |
AU628613B2 (en) | 1992-09-17 |
IT9021199A0 (it) | 1990-08-03 |
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