CN1069972A - 取代吡啶除草剂 - Google Patents

取代吡啶除草剂 Download PDF

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CN1069972A
CN1069972A CN92105947A CN92105947A CN1069972A CN 1069972 A CN1069972 A CN 1069972A CN 92105947 A CN92105947 A CN 92105947A CN 92105947 A CN92105947 A CN 92105947A CN 1069972 A CN1069972 A CN 1069972A
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J·E·德鲁姆
R·M·列特
D·R·雷纳
M·P·罗勒
C·-P·郑
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Abstract

本发明涉及除草吡啶化合物,农业上适用的组合 物,以及使用除草吡啶化合物的方法。

Description

本申请是1991年6月12日申请的系列申请NO.07/713,909的延续申请。
本发明涉及农业上适用的某些除草吡啶化合物的组合物以及它们用作选择性芽前或芽后除草剂控制作物如稻田中不期望植物的生长的一种方法。
人们一直需要有效的新化合物来控制非期望植物的生长。最通常情况下,这些化合物被希望用来选择性地控制有用作物例如棉花,稻,玉米,小麦,大豆等等中杂草的生长。这些作物中的未受抑制的杂草生长能导致明显减产,损害农民利益,增加消费者的费用。另外一些情况下,除草剂被希望用来控制所有植物的生长。已有许多商品化的为此目的的产品,但寻求更有效,较低成本并且对环境安全的产品的探索仍在进行。
美国专利U.S3495,969公开了用具有下式结构的化合物作为除草剂:
Figure 921059477_IMG3
其中R1和R2是H,C1~C8烷基,C3~C6环烷基,等;
X是H,CN,OH,卤素,亚砜,磺酸,砜,-CON(R22,羧基,卤代烷,C1~C6烷基,卤代烷氧基,烷氧基,芳基,芳氧基,卤代芳氧基,烷氧羰基,羰基,硫羟基,硫烷氧基,烷硫基,芳硫基和卤代芳硫基;
m是1或2;
n至少是1;
q是0或1;
r是0,1或2。
本发明涉及一种用来控制作物中非期望植物生长的农业上适用的组合物,它含有有效量的式Ⅰ化合物:
Figure 921059477_IMG4
其中
R1是Cl,Br,I,OCH3,OCHF2或OCF3;
R2是CN,CO2R4,CHO,C(X)NR17R18,C(S)OR6,C≡CH,CHR19OR20,CH=NOR7或CH=CR21R22;
R3是正丙基;C4~C10烷基;被一个或多个卤素原子,OR8,SR9或NR10R11取代的正丙基或C4~C7烷基;被OR16,CO2(C1~C2烷基)或任意被一个或多个CH3,CF3,OCH3,SCH3或卤素原子取代的苯基取代的C1~C3烷基;C3~C6环烷基;CH2(C3~C6环烷基);任意被一个或多个CH3,CF3,OCH3,SCH3或卤素原子取代的苯基;任意被一个或多个卤素原子或CO2(C1~C2烷基)取代的C2-C6链烯基;OR12;SR13;或NR14R15;
R4是H,C1~C2烷基,
Figure 921059477_IMG5
R6,R7,R8,R9,R10和R11各自独立地为H或C1~C2烷基;
R12和R13各自独立地为任意被一个或多个卤原子,OR8,SR9或NR10R11取代的C2~C10烷基;任意被一个或多个CH3,CF3,OCH3,SCH3或卤原子取代的苯基;或苄基;
R14和R15各自独立地为H或C1~C2烷基或可以一起代表-(CH24-,-(CH25-或-(CH2CH2OCH2CH2)-;
R16是H,C1-C8烷基;被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苄基;或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基;
R17是H,C1-C2烷基或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基;
R18是H,C1~C2烷基,C3~C6环烷基,CH2(C3~C6环烷基),O(C1~C4烷基),O-烯丙基或也可以与R17一起代表-(CH24-,-(CH25-或-(CH2CH2OCH2CH2)-
R19是H或C1~C2烷基;
R20是C(O)CH3;
R21和R22各自独立地为H,CN,CO2R4,C(X)NR17R18或卤原子;
X是O或S;
或它们的N-氧化物或其农业上的适用盐,该组合物还含有至少一种下列组份:表面活性剂,固体或液体稀释剂。
本发明还涉及一种通过向农田中施用有效量的本发明组合物来控制农作物中非期望植物生长的使用农业上适用组合物的方法。
本发明还涉及用来控制稻田中非期望植物生长的本发明化合物和一种或两种其它已知除草剂的除草混合物。本发明优选混合物含有式Ⅰ化合物,其中R1是Br或Cl,R2是C(O)NH2以及R3是CH2CH2CH(CH32,一种或几种除草化合物选自苄嘧磺隆;mefenacet;甲磺隆;吡嘧磺隆;丁草胺;N-[2-(2-甲氧基乙氧基苯磺酰)]-N′-4,6-二甲氧基-1,3,5-三嗪-2-基脲;N-[[(4,6-二甲氧基嘧啶-2-基)氨基]羰基]-1-甲基-4-(2-甲基-2H-四唑-5-基)-1H-吡唑-5-磺酰氨;S,S-二甲基2-(二氟代甲基)-4-(2-甲基丙基)-6-(三氟甲基)-3,5-吡啶硫代二羧酸酯(pyridine carbothiate);及3-氯-N[[(4,6-二甲氧基-2-嘧啶基)氨基]羰基]咪唑并[1,2-a]吡啶-3-磺酰氨。
在以上定义中,术语“烷基”包括直链或支链烷基,例如,甲基,乙基,正丙基,异丙基或不同的丁基异构体,等等。环烷基包括环丙烷基,环丁基,环戊基,环己基。术语“卤素”代表氟,氯,溴、碘。
由于包括易于合成和/或具有较高除草活性的各种原因优选的组合物及其使用方法是:
1、组合物以及通过向农田中施用这种组合物来控制非期望植物生长的方法包括具有式Ⅰ的化合物,其中
R1是Cl,Br,I或OCH3;
R2是CN,CO2R4,CHO,C(X)NH2,C(X)NH(C1~C2烷基),C(X)N(C1~C2烷基)2,C·(S)OR6或C≡CH;
R3是正丙基,C4~C6烷基,C3~C6环烷基或苯基;
R4是H或C1~C2烷基,和R6是C1~C2烷基
2、含有式Ⅰ化合物的组合物及方法,其中
R1是Cl,Br或I;
R2是CN,CO2H,CO2CH3,CO2CH2CH3,CHO,C(O)NH2,C(O)NHCH3,C(O)N(CH32,CH2OH或CH=NOR7;
R3是正丙基;C4~C7烷基;被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基取代的C2烷基;CH2(C3~C6环烷基);或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基。
3、优选2的组合物及方法,其中
R1是Cl或Br;R2是CN,CO2H或C(O)NH2;
R3是C4~C7烷基或CH2(C3~C6环烷基)。
4、优选3的组合物和方法,其中
R3是在6-吡啶位被取代的基团。
5、优选4的组合物及方法,其中R2是C(O)NH2
特别优选的使用方法包含下面的化合物:2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺和2-氯-6-(3-甲基丁基)-3-吡啶羧酰胺。
其中R3是烷基,R2是氰基的式Ⅰ化合物从前已被合成过。2-氯-3-氰基-6-异丁基吡啶的合成在J.Am.Chem.Soc.(1947),Vol.69,2670中有详细描述。可示意如下(图Ⅰ)
图Ⅰ
Figure 921059477_IMG6
R3不同的化合物的合成也可按这种路线。R2为其它取代基的化合物可通过一系列2上的变换来合成。
另外,其中R3是苯基或取代苯基(如所描述的)的类型2化合物的合成通过首先在温度25~100℃下用二甲基甲酰胺二甲基乙缩醛处理R3的甲基酮至2~48小时生成如Tetrahedron(1979),1675中所述的中间体,它在温度为25~110℃酸性条件下例如溶剂甲苯,苯、或四氢呋喃中存在乙酸或盐酸,用氰基乙酰胺处理2~48小时得到的类型2化合物(图Ⅰa
Figure 921059477_IMG7
化合物2可以在25~100℃下用三苯磷和四氯化碳处理2~48小时,或在25℃至100℃用磷酰氯和五氯化磷的混合物处理2~24小时生成1化合物。
化合物2用氯化二氟甲烷或氯化三氟甲烷处理生成化合物1,其中R1是OCF2H或OCF3,分别参见文献J.Heterocyclic Chem.1990,27,807;Synthesis 1990,604和681。根据前篇文献,氰基可水解为羧酸。进一步用磷酰氯和五氯化磷混合物处理酸,可将酸转化为酰氯,将羟基转换为氯原子而生成化合物3(图Ⅱ;J.Med.Chen.(1979),Vol.22,525)。另外,用三溴化磷处理酸将生成相应的2-溴-吡啶化合物。在本领域公知的条件下用R6-OH醇处理酰氯化合物3可生成相应的酯。相似情况下,可用氨或伯胺或仲胺,R17R18NH处理3生成相应的酰胺。用Lawesson试剂处理前前提到的酯和酰胺可合成相应的硫酯和硫代酰胺(Tetrahedron(1979),2433以及其中提到的文献)。
Figure 921059477_IMG8
Figure 921059477_IMG9
另外,根据J.Med.Chem.1985,28,1790,用30%过氧化氢水溶液,甲醇和氢氧化钠或根据Synthesis  1989,950,用30%过氧化氢,碳酸钾和二甲亚砜将1的氰基转化为酰胺。在大约25℃至100℃用约5~20%的碱的水溶液例如氢氧化钾或氢氧化钠水溶液,优选的是5%氢氧化钠水溶液处理1的氰基1~24小时可将其转化为羧酸,然后化合物1的羧酸可被转化为酰氯化合物3,它可依次转化为取代的胺,如图Ⅱ所示。
在约0℃至80℃下在甲醇中用甲醇钠处理化合物1 1~24小时,生成式Ⅰ化合物,其中R1=OCH3,R2=CN,R3如上所定义。
在约25℃至120℃,反应1~48小时,例如在丙酮或甲基乙基酮溶剂中,用碘化钠或碘化钾可将化合物1中的2-Cl转换为碘。
用如图Ⅲ所示本领域技术人员公知的标准方法用二异丁基铝氢化物(DIBAC-H)将氰基还原为醛化合物4而实现更多灵活多变的合成。用(C1~C2烷基)-MgBr处理醛化合物4可制备仲醇。
Figure 921059477_IMG10
用NH2OR7处理可将醛化合物4转化为肟生成4A化合物,通过本领域公知的方法,用活化的CH2R21R22型(其中R21或R22是腈,酯或酰胺)亚甲基化合物和一种碱处理可将4转化为烯化合物4B。如图Ⅲ所示,通过Corey-Fuchs容许作用可由醛合成乙炔(用CBr4/PPh3处理生成二溴代烯,接着用正丁基锂进行重排,用酸停止反应;见Tetrahedron Lett.(1972),3769)。
在25℃~100℃下,反应1~24小时,在例如二氯甲烷或四氯化碳溶剂中用1当量N-溴代琥珀酰亚胺处理,可将2-氯-3-氰基-6-甲基吡啶可转化为伯溴化物4C。这个溴化产物可用来合成4D型化合物,如图Ⅲa所示。因此,4C可以在约0℃至100℃,在一种溶剂例如四氢呋喃,二甲基甲酰胺或二噁烷中,用碱例如三乙胺,吡啶或氢化钠和C1~C8醇处理。
Figure 921059477_IMG11
如图Ⅲb所示,在碱性条件下,用醇,苯酚,硫醇,苯硫酚和取代胺与化合物4F反应可合成4G型化合物。4F的合成方法是已知的(Angew  Chem.Int.Ed.Engl,1980,388)。
Figure 921059477_IMG12
根据文献J.Org.Chem.(1978)43(12)2529和美国专利U.S.4987232,如图Ⅳ所示,可合成在5位上被烷基取代的吡啶。根据文献方法(Tetrahedron  Lett(1984),5243),可合成3-乙氧基-2-烷基丙烯醛。用氰基乙酰胺处理此醛,酸催化环化后,将生成中间体5。
图Ⅳ
用如图Ⅱ和图Ⅲ所描述的同样的转换方法,可将中间体5转化为所需要的吡啶。
用图Ⅴ所示的方法可合成4位被烷基取代的吡啶。
图Ⅴ
Figure 921059477_IMG14
氰基乙酸乙酯和原酸酯和蒸馏醇缩合生成了一烷氧基,-3-亚烷基衍生物(Chem.Abs.52:11909i,专利U.S.2824121)。与乙醛的等同物例如相应的珐琅或甲硅烷基醚缩合,再氨解,可生成化合物6。根据图Ⅱ和Ⅲ所示的方法,6可进一步转化为等量的所需吡啶。
本发明化合物的制备还进一步通过下面具体实例进行了描述。除特别标明外,温度用摄氏温度表示。
实施例1
1,2-二氢-2-氧代-6-(3-甲基丁基)-3-吡啶腈
反应温度保持为0℃,向0℃的N2气氛的500ml含有23.25g甲醇钠的二乙醚悬浮液中滴加100ml二乙醚中含有29.6g甲酸乙酯和45.6g4-甲基-2-戊酮的溶液。在25℃下搅拌2小时之后生成大量沉淀物。去除二乙醚,向残留固体物中加入150ml水中含有33.4g氰基乙酰胺的溶液和哌啶乙酸盐(通过向含有4ml冰醋酸的20ml水中加入哌啶至溶液对石蕊刚成碱性而制得。)。混合物加热回流2小时。然后向其中加入100ml水,并用乙酸酸化(对石蕊)溶液,导致产物呈黄色沉淀物分离出来。在冰浴中将混合物冷却2小时。抽滤收集产物,用3×100ml水洗涤,抽滤干燥,并在25℃下真空干燥过夜,得到54g黄色固体即标题化合物;熔点110~112℃。NMR(CDCl3)ppmδ7.82(d,1H);6.23(d,1H);2.73(d,2H),1.67(m,3H);0.996(d,6H)。
IR(Nujol):2200cm-1(C≡N),
1650cm-1(C=0)。
实施例2
化合物8
在90℃下加热含有15.2g实施例1化合物的22ml磷酰氯悬浮液,并在30分钟内分批加入19g五氯化磷。将混合物在90℃下再加热1.5小时,在真空中去除过量的磷酰氯。将残留物溶解在1∶1的200ml二氯甲烷和200ml水中。收集氯甲烷相,用水洗涤,用硫酸镁干燥,过滤,滤液蒸发剩黄色油状物。用硅胶快速柱层析(8∶2己烷-乙酸乙酯),洗脱液蒸发后得11.55g标题化合物,为棕色油状物。
NMR(CDCl3)ppmδ7.9(d,1H);7.23(d,1H);2.87(m,2H);1.64(m,3H);0.965(d,6H)。
IR(Neat):2210cm-1(C≡N)。
实施例3
化合物13
在25℃下,向15ml含有1.95g实施例2化合物的甲醇溶液中加入2ml含0.5g氢氧化钠的水溶液,再加入2.2ml30%的过氧化氢水溶液。反应混合物被搅拌24小时后加入50ml水,用2×25ml二氯甲烷萃取混合物。分别用25ml饱和的亚硫酸氢钠水溶液和水洗涤二氯甲烷萃取液。有机相用硫酸镁干燥,过滤,滤液蒸发得1.2g标题化合物,为白色固体。
m.p.119~120℃。NMR(CDCl3)ppmδ8.2(d,1H);7.2(d,1H);6.85(s,1H);6.0(s,1H);2.77(m,2H);1.6(m,3H);0.965(d,6H)。
IR(Nujod):3320,1650cm-1(C=0)。
实施例4
化合物34
向147ml水中含有7.36g氢氧化钠的溶液中加入8.68g实施例2化合物,加热回流4小时。将混合物冷却至0℃(冰浴),并用浓盐酸酸化至pH为2(石蕊)。用3×100ml的二氯甲烷萃取混合物。分别用50ml水和饱和的氯化钠水溶液洗涤有机相。有机相用硫酸镁干燥,过滤,滤液蒸发得8.0g标题化合物,为黄色油状物。NMR(CDCl3)ppmδ8.28(d,1H);7.23(d,1H);2.8(m,2H);1.6(m,2H);1.2(m,1H);0.97(d,6H)。IR(Neat):1700cm-1,(C=0)。
实施例5
化合物39
用实施例2的方法,将15.2g实施例1产物与40g磷酰溴和10g五溴化磷反应。分离出来的粗产品用硅胶快速柱层析纯化(己烷∶醋酸乙酯为8∶2),蒸发洗脱液得标题化合物13.0g,为深棕色油状物。
NMR(CDCl3)ppmδ7.8(d,1H);7.2(d,1H);2.8(t,2H);1.6(m,3H);0.9(d,6H)。
IR(Neat):2200cm-1,(C≡N)。
实施例6
化合物41
用实施例3的方法,将1.6g实施例5产物与1.2ml含0.3g氢氧化钠的水和1.4ml30%的过氧化氢水溶液反应。分离出的粗产物用硅胶快速柱层析纯化(己烷∶醋酸乙酯1∶1),洗脱液蒸发后得0.64g标题化合物,为白色固体,m.p.110℃~112℃。NMR(CDCl3)ppmδ8.0(d,1H);7.2(d,1H);6.5(b,s,1H);6.0(b,s,1H);2.8(m,2H);1.6(m,3H);0.96(d,6H)。
IR(Neat):3340cm-1,(NH2);1650cm-1(C=0)。
用图Ⅰ-Ⅴ和实施例1~6所示方法,本领域技术人员能制备表1~3的化合物。
Figure 921059477_IMG15
Figure 921059477_IMG16
Figure 921059477_IMG17
Figure 921059477_IMG19
Figure 921059477_IMG20
Figure 921059477_IMG25
Figure 921059477_IMG27
Figure 921059477_IMG28
Figure 921059477_IMG29
Figure 921059477_IMG30
Figure 921059477_IMG31
Figure 921059477_IMG32
Figure 921059477_IMG34
Figure 921059477_IMG35
Figure 921059477_IMG36
Figure 921059477_IMG39
Figure 921059477_IMG41
Figure 921059477_IMG42
Figure 921059477_IMG44
Figure 921059477_IMG45
Figure 921059477_IMG48
Figure 921059477_IMG49
Figure 921059477_IMG50
Figure 921059477_IMG51
Figure 921059477_IMG52
Figure 921059477_IMG53
Figure 921059477_IMG54
Figure 921059477_IMG55
Figure 921059477_IMG56
Figure 921059477_IMG57
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Figure 921059477_IMG59
Figure 921059477_IMG61
Figure 921059477_IMG62
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Figure 921059477_IMG64
Figure 921059477_IMG66
Figure 921059477_IMG67
Figure 921059477_IMG69
Figure 921059477_IMG70
Figure 921059477_IMG72
Figure 921059477_IMG73
Figure 921059477_IMG74
Figure 921059477_IMG75
Figure 921059477_IMG76
Figure 921059477_IMG77
Figure 921059477_IMG78
Figure 921059477_IMG79
Figure 921059477_IMG80
Figure 921059477_IMG81
Figure 921059477_IMG82
Figure 921059477_IMG83
Figure 921059477_IMG84
Figure 921059477_IMG85
Figure 921059477_IMG86
制剂
本发明可用常规方法将式Ⅰ化合物进行配制。包括粉剂,颗粒剂,丸剂,溶液剂,胶悬剂,乳剂,可湿性粉剂,乳油等等。这些制剂中的许多可直接施用。可喷雾制剂要有适当的介质,每公顷喷雾体积由几升至几百升。高浓度组合物首先用作中间体供进一步加工。本发明除草制剂含有0.1%至99%重量的活性成份和至少一种(1)大约0.1%至20%的表面活性剂和(2)大约1%至99.9%固体或液体稀释剂。更具体地,它们含有以下大约比例的成份:重量百分比
活性成分  稀释剂  表面活性剂
可湿性粉剂  20~90  0~74  1~10
油胶悬剂,乳剂  3~50  40~95  0~15
溶液剂(包括乳油)
水胶悬剂  10~50  40~84  1~20
粉剂  1~25  70~99  0~5
颗粒剂和丸剂  0.1~95  5~99.9  0~15
高浓度组合物  90~99  0~10  0~2
*活性成份加上至少一种表面活性剂或一种稀释剂等于100%重量。
当然,可制成的活性成分含量低或高取决于化合物的使用目的和物理特性。有时希望相对于活性成份的较高比例表面活性剂,这点通过配入制剂或在桶混来达到。
Watkins等人在由新泽西州Caldwell的Dorland  Books出版第二版的“杀虫剂粉剂稀释剂和载体手册”中描述了典型的固体稀释剂,但其它矿产或制作的固体也可使用。对于可湿性粉剂优选的是较强吸附稀释剂,而对于粉剂优选的是稠厚的稀释剂。在1950年纽约Interscience出版的第二版“溶剂指南”中,Marsden描述了典型的液体稀释剂和溶剂。对于浓胶悬液,其溶解性优选的是在0.1%以下;浓溶液优选是在0℃时稳定不分相。新泽西Ridgewood的Mc  Publishing  Corp.出版的“Mc  Cutcheon′s洗涤剂和乳化剂年鉴”,以及1964年纽约Chemical  Publishing  Co.Inc.出版的Sisely和Wood著的“表面活性剂百科全书”,列举了表面活性剂和推荐应用,所有制剂都可含有少量添加剂以减少泡沫,结块,腐蚀,微生物生长等等。
制备这样组合物的方法是为人熟知的。溶液剂通过简单的混合制备而得,微细固体组合物是用混合和通常用捶磨机或液能磨机中研磨而制得。胶悬液是用湿磨机制备(例如参见Littler申请的U.S.3060084)。颗粒剂和丸剂是通过向压丸颗粒载体上喷雾活性原料或通过附聚技术而制备。参见J.E.Browning的“附聚作用”,Chemical  Engineering,1967年12月4日,147页,以及“Perry′s化学工程师手册”,第5版,McGraw-Hill,纽约,1973,8-57页。
关于制剂领域的其它参考资料参见:
H.M.Loux的美国专利US.3235361,1966年2月15日,第6栏第16行至第7栏第19行以及实施例10-41;
R.W.Luckenbaugh的美国专利U.S.3309192,1967年3月14日,第5栏43行至第7栏62行,以及实施例8,12,15,39,41,52,53,58,132,138-140,162-164,166,167和169-182;
H.Gysin和E.Knusli的美国专利U.S.2891855,1959年6月23日,第3栏66行至第5栏17行以及实施例1-4;
G.C.Klingman,“除草科学”,John  Wiley  and  Sons,Inc.,纽约,1961年,81-96页;以及
J.D.Fryer和S.A.Evans,“除草手册”,第5版,布莱克韦尔科学出版社,牛津,1968年,101-103页。
在下面的实施例中除特别指明外,所有成份按重量比。
实施例  A
可湿性粉剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  50%
烷基萘磺酸钠  2%
低粘度甲基纤维素  2%
硅藻土  46%
将各成份掺合,锤磨机粗磨,再用气流粉碎机制成基本上所有直径小于10微米的颗粒。装袋前将产品再混合。
实施例  B
颗粒剂
例A的可湿性粉  5%
硅镁土颗粒  95%
(U.S标准筛20-40筛目;0.84-0.42mm)
在双圆锥混合机中向硅镁土颗粒表面喷雾含25%固体的可湿性粉未的淤浆。将颗粒干燥并装袋。
实施例  C
压丸剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  25%
无水硫酸钠  10%
粗木素磺酸钙  5%
烷基萘磺酸钠  1%
钙/镁皂土59%
这些成分混合,锤磨,然后用约12%的水湿润。将混合物挤成3mm直径的圆柱体,将其切成3mm厚制成丸剂。干燥后可直接使用,或可将干燥的片剂压碎过U.S.标准20目筛(0.84mm)筛孔)。U.S.标准40目筛网上的颗粒(0.42mm筛孔)可装袋,细的再制丸。
实施例  D
低浓度颗粒剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  0.1%
硅镁土颗粒  99.9%
(U.S标准20-40筛目)
将活性成份溶解于溶剂中,在双圆锥混合机中将溶液喷雾到除尘颗粒上。喷雾溶液完成后,材料升温以蒸发溶剂。将材料冷却并装袋。
实施例  E
低浓度颗粒剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  1%
N,N-二甲基甲酰胺  9%
硅镁土颗粒90%
(U.S.标准20-40筛目)
活性成份溶于溶剂中,在双圆锥混合机中向颗粒表面喷雾溶液,喷雾后混合机运转片刻,然后将颗粒装袋。
实施例  F
可湿性粉剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  40%
木素磺酸钠  20%
蒙脱土  40%
将各成份混合,用锤磨机粗磨,然后用气流粉碎机制成基本上所有粒径小于10微米的颗粒。将材料再混合,然后装袋。
实施例  G
乳油
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  35%
羧酸多醇酯与油溶性石油磺酸盐的混合物  6%
二甲苯  59%
各成份化合并过滤去除不溶固体,产品可直接使用,或用油状物稀释或在水中乳化。
例  H
粉剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  10%
硅镁土  10%
叶蜡石  80%
活性成份与硅镁土混合,然后用锤磨机制成大体都小于200微米的颗粒。然后再与粉状叶蜡石混合至均匀。
例  I
可湿性粉剂
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  20%
烷基萘磺酸钠  4%
木素磺酸钠  4%
低粘度甲基纤维素  3%
硅镁土颗粒  69%
将各成份混合,用锤磨机粗磨,然后用气流粉碎机制成基本上所有粒径小于10微米的颗粒,将材料再混合然后装袋。
例  J
2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺  48.8%
Altox
Figure 921059477_IMG87
3404F-阴离子/非离子乳化剂 2.4%
Altox
Figure 921059477_IMG88
3455F-阴离子/非离子乳化剂 5.6%
Aromatic  100(Exxon)-二甲苯溶剂  43.2%
在适当容器中混合各成份,直到所有成份都完全溶解。
应用
实验结果表明,本发明组合物包括有活性的芽后和芽前除莠剂。本发明组合物对抑制作物特别是旱地稻和水稻(Oryza  Sativa)中的稗子特别有效。
通过一系列因素测定了本发明组合物施用的有效剂量。这些因素包括:制剂的选择,施用的方法,存在的杂草的类型和数量,生长条件等。一般情况下,本发明组合物施用的剂量范围是0.005~10Kg/ha,优选的是0.01~1Kg/ha组合物中的活性化合物。本领域技术人员可根据需要确定有效施用剂量。
本发明组合物还可包括与其它市售除草剂,杀虫剂和杀真菌剂结合使用。下面列举的例子是一些适用于混用的除草剂。本发明组合物与一种或几种下列除草剂结合使用,对控制稻田中杂草的生长特别有效。
通用名称  化学名称
乙基乙草胺  2-氯-N-(乙氧基甲基)-N-(2-乙基-6-甲基苯基)乙酰胺
甲草胺  2-氯-N-(2,6-二乙基苯基)-N-(甲氧基甲基)乙酰胺
苄嘧磺隆  2-[[[[[(4,6-二甲氧基-2-嘧啶基)氨基]甲基羰基]氨基]-磺酰基]甲基]苯甲酸甲酯
灭草松  3-(1-甲基乙基)-(1H)-2,1,3-苯并噻二嗪-4(3H)-酮-2,2二氧化物
甲羧除草醚  5-(2,4-二氯苯氧基)-2-硝基苯甲酸甲酯
bromobutide  (+)2-溴-3,3-二甲基-N-(1-甲基-1-苯乙基)丁酰胺
丁草胺  N-(丁氧甲基)-2-氯-N-(2,6-二乙基苯基)乙酰胺
CGA142464  N-[2-(2-甲氧基乙氧基-苯基磺酰]-N′-4.6-二甲氧基-1,3,5-三嗪-2-基脲
氯嘧磺隆  2-[[[[(4-氯-6-甲氧基-2-嘧啶基)乙基氨基]羰基]氨基]-磺酰基苯甲酸乙酯
草枯醚  1,3,5-三氯-2-(4-硝基苯氧基-苯
氯磺隆  2-氯-N-[[(4-甲氧基-6-甲基-1,3,5-三嗪-2-基)氨基]羰基]-苯磺酰胺
绿麦隆  N′-(3-氯-4-甲基苯基)-N,N-二甲基脲
恶庚草烷  外-1-甲基-4-(1-异丙基)-2-[[2-甲基苯基)甲氧基]-7-氧杂二环[2,2,1]庚烷
苯草快  1-甲基-4-苯基吡啶鎓
环丙津  2-氯-4-环丙胺基-6-异丙胺基-均三氮苯
dithiopyr  S,S-二甲基2-(二氟甲基)-4-(2-异丙基)-6-(三氟甲基)-3,5-吡啶硫代二羧酸酯
DPXA8947  N-[[(4,6-二甲氧基嘧啶-2-基)-氨基]羰基]-1-甲基-4-(2-甲基-2H-四唑-5-基)-1H-吡唑-5磺酰胺
环草索  7-氧杂二环(2,2,1)  庚烷-2,3-二甲酸
esprocarb  S-(苯基甲基)(1,2-二甲基丙基)乙基硫代氨基甲酸酯
异丙隆  N-(4-异丙基苯基)-N′,N′-二甲基脲
2甲4氯  4-氯-2-甲基苯氧乙酸
mefenacet  2-(2-苯并噻唑氧基)-N-甲基-N-苯基乙酰胺
甲磺隆  2-[[[[(4-甲氧基-6-甲基-1,3,5-三嗪-2-基)氨基]羰基]-氨基]磺酰基]苯甲酸甲酯
禾草特 S-乙基六氢-1H-氮杂
Figure 921059477_IMG89
硫赶氨基甲酸酯
My-93  1-哌啶硫代羧酸,S-/1-甲基-1-苯基乙基/酯
NSK850  2-氯-N-(2,6-二甲基苯基)-N-(((3-甲氧基-2-噻吩基)甲基))-乙酰胺
恶草酮  3-[2,4-二氯-5-(1-甲基乙氧基)-苯基]-5-(1,1-二甲基乙基)-1,3,4-噁二唑-2(3H)-酮
乙氧氟草醚  2-氯-1-(3-乙氧基-4-硝基苯氧基)-4-(三氟甲基)苯
丙草胺  2-氯-N-(2,6-二乙基苯基)-N-(2-丙氧基乙基)乙酰胺
敌稗  N-(3,4-二氯苯基)丙酰胺
pyrazolate  4-(2,4-二氯苯甲酰基)-1,3-二甲基吡唑-5-基-对甲苯磺酸酯
吡嘧磺隆  5-[[[[(4,6-二甲氧基-2-嘧啶基)氨基]羰基]-氨基]磺酰基]-1-甲基-1H-吡唑-4-甲酸乙酯
快杀稗  3,7-二氯-8-喹啉甲酸
阔叶散  3-[[[[(4-甲氧基-6-甲基-1,3,5-三嗪-2-基)氨基]羰基]氨基]磺酰基]-2-噻吩甲酸甲酯
噻磺隆(阔叶散)3-[[[[(4-甲氧基-6-甲基-1,3,5-三嗪-2-基)氨基]羰基]氨基]磺酰基]-2-噻吩甲酸甲酯
禾草丹  S-[(4-氯苯基)甲基]二乙基-硫赶氨基甲酸酯
tiocarbazil  S-(苯基甲基)双(1-甲基丙基)-硫赶氨基甲酸酯
醚苯磺隆  2-(2-氯乙氧基)-N-[[(4-甲氧基-6-甲基-1,3,5-三嗪-2-基)氨基]-羰基]苯基磺酰胺
阔叶净  2-[[[[N-(4-甲氧基-6-甲基-1,3,5-三嗪-2-基)-N-甲胺基]-羰基]氨基]磺酰基]苯甲酸甲酯
2,4-D  (2,4-二氯苯氧基)乙酸
温室实验测定了有关本题化合物选择除草性质,如下所示。表4
化合物 R1R2
Figure 921059477_IMG90
R3熔点(℃)
1 Cl C≡N C6H5135-136
2 Cl CO2CH3CH2CH(CH3)2油状物
3 Cl C(O)NH2CH2CH(CH3)2110-118
5 OCH3C≡N CH2CH(CH3)2油状物
6 Cl C≡N CH2-cyclopentyl 65-68
7 Cl CH2CH(CH3)275-76
8 Cl C≡N CH2CH2CH(CH3)230-31
9 Cl C(O)NH2C6H5176-178
10 Cl C≡N CH2-C6H5油状物
11 Cl C(O)NH2CH2-环戊基 120-121
12 Cl C≡N 3CF3C6H4105-108
13 Cl C(O)NH2CH2CH2CH(CH3)2119-120
14 Cl C(O)NH2CH2C6H595-98
15 Cl C(O)NH23CF3C6H4109-112
16 OCH3C≡N CH2C6H5117-121
17 OCH3C(O)NH23CF3C6H4174-176
18 Cl CO2H CH2CH(CH3)275-80
19 Br C≡N CH2CH(CH3)2油状物
化合物 R1R2R3熔点(℃)
20 Cl C≡N CH2CH2CH2CH3油状物
21 Br C(O)NH2CH2CH(CH3)2118-120
22 Cl C(O)NH2CH2CH2CH2CH398-100
23 Cl C(O)NH-CH2-环丙基 CH2CH(CH3)260-63
24 Cl C(O)NH-环丙基 CH2CH(CH3)278-80
25 Cl C≡N CH≡CH(CH3)265-68
26 Cl C(O)NHOCH3CH2CH(CH3)2油状物
27 Cl C(O)N(CH3)2CH2CH(CH3)2油状物
28 Cl C(O)NCH3(OCH3) CH2CH(CH3)2油状物
29 Cl
Figure 921059477_IMG92
CH2CH(CH3)250-53
30 Cl C≡N CH2CH2CH3油状物
31 Cl CO2H CH2CH2CH390-93
32 Cl CO2H CH2-环戊基 87-89
33 Cl CO2H CH2CH2CH2CH3油状物
34 Cl CO2H CH2CH2CH(CH3)2油状物
35 Cl C(O)NH2CH2CH2CH394-95
36 Cl C≡N CH2(CH2)4CH3油状物
37 Cl C(O)NH2CH2(CH2)4CH387-89
38 Cl C≡N CH2(CH3)342-45
39 Br C≡N CH2CH2CH(CH3)2油状物
40 Cl CO2H C6H5183-185
41 Br C(O)NH2CH2CH2CH(CH3)2110-112
42 Cl CHO CH2CH(CH3)2油状物
43 Br CO2H CH2CH2CH(CH3)2油状物
45 Cl C(O)NH2CH2C(CH3)3110-114
46 Cl C≡N-OCH3CH2CH(CH3)2油状物
47 Cl CH2OH CH2CH(CH3)2油状物
48 Cl C(O)NH2CH=CH(CH3)2115-118
49 Cl C≡N CH2CH2C6H560-67
50 Cl C(S)NH2CH2CH(CH3)2175-184
化合物 R1R2R3熔点(℃)
51 Cl C≡N CH2CH2CH(CH3)CH2CH2CH3油状物
52 Cl C(O)NH2CH2CH2C6H5138-144
53 Cl C(O)NH2CH2CH2CH(CH3)CH2CH2CH380-84
54 Br C(O)NH2CH2-环戊基 97-105
55 Br C(O)NH2CH2CH2CH2CH3111-114
56  Br  C≡N  t-丁基  47
57 Br C≡N CH2-环戊基 64-66
58 Br C≡N CH2CH2CH2CH3油状物
59 Cl C≡N CH2CH(CH3)249-50
60 OCH3C≡N CH2(CH3)3
61 Cl CO2H OCH2CH2CH2CH395-98
62 Cl C≡N OC6H539-41
63 Cl C≡N SC(CH3)3油状物
64 Cl C≡N OCH2CH(CH3)2油状物
65 Cl C(O)NH2O(t-丁基 118-119
66 Cl C(O)NH2OC6H5145-146
67 Cl C(O)NH2OCH2CH(CH3)2112-115
68 Cl C≡N CH2OC6H5138-140
69 Cl C(O)NH2CH2OC6H5156-158
70 Cl C(O)NH2S(t-丁基 78-80
71 Br C(O)NH2CH2(CH2)3CH368-70
72 Br C≡N CH2CH2CH(CH3)CH2CH2CH3油状物
73 Br C(O)NH2CH2CH2CH(CH3)CH2CH2CH3油状物
74 Cl C(O)NH22Cl-C6H4200-201
75 Cl C(O)NH24Cl-C6H4215-216
76 Cl CH≡C(CN)2CH2CH2CH(CH3)270-71
77 Cl CH≡C(CN)C(O)NH2CH2CH2CH(CH3)2132-135
78 Cl HC≡C(CN)CO2CH3CH2CH2CH(CH3)248-49
79 Cl CH≡CH-CO2CH3CH2CH2CH(CH3)2油状物
80 Br C(O)NH2CH2(CH3)381-82
化合物 R1R2R3熔点(℃)
81 Cl C(O)NH2CH2(CH2)3CH381-82
82 Br C≡N CH2C(CH3)3油状物
83 Cl C≡N CH2(CH2)3CH3油状物
98 Cl CN 3Br-C6H4138-139
99 Cl C(O)NH23Br-C6H4160-161
100 Cl CN CH2-OC6H5138-140
101 Cl C(O)NH2CH2-OC6H5156-158
102 Cl C(O)NH2OCH2CH(CH3)2112-115
103 Cl CN 4F-C6H485-87
104 Cl CN 2Cl-C6H4102-105
105 Cl C(O)NH23Cl-C6H4145-148
106 Cl CN 4Cl-C6H4155-156
107 Cl C(O)NH24F-C6H4185-186
108 Cl CN 3Cl-C6H4108-110
109 Cl C(O)NH2SCH2CH(CH3)295-100
110 Cl CO2H SCH2CH(CH3)2油状物
111 Br CN CH2CH2CH(CH3)CH2CH2CH3油状物
112 Br C(O)NH2CH2CH2CH(CH3)CH2CH2CH3半固体
113 Br C(O)NH2CH2CH2CH2CH2CH368-70
114 Cl CN SCH2CH(CH3)2油状物
115 Cl C(O)NH2SC(CH3)378-80
116 Cl C(O)NH2OC(CH3)3118-119
117 Cl CN SC(CH3)3油状物
表5
化合物 R1R2R3熔点(℃)
84 Br C(O)NH2CH2(CH2)3CH387
85 Br C(O)NH2C6H5187
表6
化合物 R1R2R3熔点(℃)
44 Cl C≡N CH2CH(CH3)272-73
表7
化合物  光谱数据
2 NMR(CDCl3): ppmδ8.1(d,1H);7.13(d,1H);3.94(s,3H);
2.69(d,2H);2.1(m,1H);0.947(d,6H)
IR(Neat): 1740cm-1(C=O)
5 NMR(CDCl3): ppmδ7.7(d,1H);6.8(d,1H);4.0(s,3H);
2.6(d,2H);2.2(m,1H);0.949(d,6H)
IR(Neat): 2210cm-1(C≡N)
10 NMR(CDCl3): ppmδ7.86(d,1H);7.3(m,2H);7.13(d,1H);
4.8(s,2H)
IR(Neat): 2210cm-1(C≡N)
19 NMR(CDCl3): ppmδ7.8(d,1H);7.2(d,1H);2.7(d,2H);
2.1(m,1H);0.95(d,6H)
IR(Neat): 2220cm-1(C≡N)
20 NMR(CDCl3): ppmδ7.9(d,1H);7.2(d,1H);2.8(t,2H);
1.7(m,2H);1.4(m,2H);1.0(t,3H)
IR(Neat): 2220cm-1(C≡N)
26 NMR(CDCl3): ppmδ9.1(s,1H);8.0(d,1H);7.1(d,1H);
3.9(s,3H);2.7(d,2H);2.1(m,1H);0.9
(d,6H);
27 NMR(CDCl3): ppmδ7.5(d,1H);7.1(d,1H);3.1(s,3H);
2.9(s,3H);2.6(d,2H);2.1(m,1H);0.95
(d,6H)
IR(Neat): 1650cm-1(C=O)
28 NMR(CDCl3): ppmδ7.6(d,1H);7.1(d,1H);3.5(s,3H);
3.3(s,3H);2.7(d,2H);2.1(m,1H);0.949
(d,6H)
IR(Neat): 1650cm-1(C=O)
化合物  光谱数据
30 NMR(CDCl3): ppmδ7.9(d,1H);7.2(d,1H);2.8(t,2H);
1.8(m,2H);1.0(t,3H)
IR(Nujol): 2220cm-1(C≡N)
33 NMR(CDCl3): ppmδ8.5(bs,1H);8.2(d,1H);7.2(d,1H);
2.8(t,2H);1.7(m,2H);1.4(m,2H);1.0
(t,3H)
IR(Neat): 1740cm-1(C=O)
34 NMR(CDCl3): ppmδ8.28(d,1H);7.23(d,1H);2.8(m,2H);
1.6(m,2H);1.2(m,1H);0.97(d,6H)
IR(Neat): 1700cm-1;(C=O)
36 NMR(CDCl3): ppmδ7.9(d,1H);7.2(d,1H);2.8(t,2H);
1.7(m,2H);1.3(m,6H);0.9(t,3H)
IR(Neat): 2220cm-1(C≡N)
39 NMR(CDCl3): ppmδ7.8(d,1H);7.2(d,1H);2.8(t,2H);
1.6(m,3H);0.9(d,6H)
IR(Neat): 2220cm-1(C≡N)
42 NMR(CDCl3): ppmδ10.5(s,1H);8.2(d,1H);7.2(d,1H);
2.72(d,2H);2.2(m,1H);0.96(d,6H)
IR(Neat): 2860,1730cm-1(C=O)
43 NMR(CDCl3): ppmδ8.21(d,1H);7.24(d,1H);2.8(m,2H);
1.6(m,3H);0.967(m,6H)
IR(Neat): 2940,1700cm-1(C=O)
46 NMR(CDCl3): ppmδ8.4(s,1H);8.05(d,1H);7.0(d,1H);
3.99(s,3H);2.61(d,2H);2.2(m,1H);0.945
(d,6H
IR(Neat): 1580,1540cm-1(C≡N)
47 NMR(CDCl3): ppmδ7.8(d,1H);7.1(d,1H);4.7(d,2H);
2.6(d,2H);2.1(m,1H);0.9(d,6H)
IR(Neat): 3300cm-1(OH);
51 NMR(CDCl3): ppmδ7.89(d,1H);7.2(d,1H);2.8(m,2H);
2.8-1.0(m,7H);0.943(m,6H)
IR(Neat): 2220cm-1(C≡N)
化合物  光谱数据
58 NMR(CDCl3): ppmδ7.8(d,1H);7.3(d,1H);2.86(m,2H);
1.8(m,2H);1.4(m,2H);0.96(m,3H)
IR(Neat): 2210cm-1(C≡N)
64 NMR(CDCl3): ppmδ7.8(m,1H);7.0(m,1H);4.2(m,2H);
2.1(m,1H);1.0(m,6H)+6-isomer
IR(Neat): 2220cm-1(C≡N)
72 NMR(CDCl3): ppmδ7.8(d,1H);7.2(d,1H);2.8(m,2H);
1.8-1.1(m,7H);1.0-0.8(m,6H)
IR(Neat): 2220cm-1(C≡N)
73 NMR(CDCl3): ppmδ7.9(d,1H);7.2(d,1H);6.7(s,1H);
6.5(s,1H);2.8(m,2H);1.8-1.1(m,7H);
1.0-0.8(m,6H)
IR(Nujol): 3360,3180cm-1(NH2)1650cm-1(C=O)
79 NMR(CDCl3): ppmδ7.98(d,1H);7.81(d,1H);7.13(d,
1H);6.41(d,1H);3.83(s,3H);2.78(m,2H);
1.61(m,3H);0.94(d,6H)
IR(Neat): 1710cm-1(C=O)
82 NMR(CDCl3): ppmδ7.83(m,1H);7.21(m,1H);2.7(s,2H);
1.02(s,9H)
IR(Nujol) 2210cm-1(C≡N)
83 NMR(CDCl3): ppmδ7.89(d,1H);7.22(d,1H);2.84(m,
2H);1.8(m,2H);1.35(m,4H);0.899(m,3H)
IR(Neat): 2210cm-1(C≡N)
110 NMR(CDCl3): ppmδ8.2(m,1H);7.2(m,1H);3.05(m,2H);
2.0(m,1H);1.09(d,6H)
111 NMR(CDCl3): ppmδ7.82(d,1H);7.2(d,1H);2.8(m,2H);
1.8-1.0(m,5H);0.866(m,6H)
IR(Neat): 2210cm-1(C≡N)
112 NMR(CDCl3): ppmδ7.94(d,1H);7.21(d,1H);6.7(bs,
1H);6.6(bs,1H);2.8(m,2H);1.8-1.2(m,
7H);0.9(m,6H)
IR(Nujol): 3350cm-1(NH);1650cm-1(C=O)
化合物  光谱数据
114 NMR(CDCl3): ppmδ7.6(d,1H);
7.05(d,1H);3.1(m,2H);2.0(m,1H)
;1.0(m,6H)+10%异构体
IR(Neat): 2210cm-1(C≡N)
117 NMR(CDCl3): ppmδ7.6(d,1H);7.0(d,1H);1.67(s,
9H)
IR(Neat): 2210cm-1(C≡N)
下面是实验E,F,G中使用的另外化合物:
化合物  通用名称  化学名称
86  苄嘧磺隆  2-[[[[(4,6-二甲氧基-2-嘧啶基)-
氨基]甲基羰基]氨基]磺酰基]甲基]
苯甲酸甲酯
87  CGA142464  N-[2-(2-甲氧基乙氧基苯基磺酰
基]-N'-4,6-二甲氧基-1,3,5-
三嗪-2-基脲
88  DPXA8947  N-[[(4,6-二甲氧基嘧啶-2-基)-氨
基]羰基]-1-甲基-4-(2-甲基
-2H-四唑-5-基)-1H-吡唑-5-
磺酰胺
89  mefenacet  2-(2-苯并噻唑氧基)-N-甲基
-N-苯基乙酰胺
90  甲磺隆  2-[[[[(4-甲氧基-6-甲基-1,3,-5-
三嗪-2-基)氨基]羰基]氨基]磺酰基]苯甲酸甲酯
91 禾草特 S-2基 6H-1H-氮杂 硫赶氨基
甲酸酯
92  吡嘧磺隆  5-[[[[(4,6-二甲氧基-2-嘧啶基)氨
基]羰基]氨基]-磺酰基]-1-甲基
-1H吡唑-4-羧酸乙酯
93  快杀稗  3,7-二氯-8-喹啉羧酸
94  (未知)  N-[[4,6-二甲氧基-2-嘧啶基)-氨
基]羰基]-3-甲基-5-(2,2,2-三氟
乙氧基)-4-异噻唑磺酰胺
95  TH-913  3-氯-N-[[4,6-二甲氧基-2-嘧啶
基)氨基]羰基]咪唑并-[1,2-a]吡啶
-3-磺酰胺
96  MON7200  2-(二氟甲基)-4-(2-甲基丙基
)-6-(三氟甲基)-3,5-吡啶硫代羧
酸S,S-二甲酯
97  丁草胺  N-[丁氧甲基]-2-氯-N-(2,6-二
乙基苯基)乙酰胺
实验A
将稗子(Echinochloa  crus-galli),黑雀麦(Bromus  Secalinus),宾州苍耳(Xanthium  pensylvanicum),马唐(Digitaria  spp.),大狗尾草(Setaria  faberii),牵牛花(Ipomoea  spp.),高梁(Sorghum  bicolor),苘麻(Abutilon  theophrasti),和野生燕麦(Avena  fatus)等的种子种植在沙质肥土中,用溶解在无植物毒性的溶剂中的试验化合物进行芽前除莠。同时用试验化合物对这些作物杂草进行芽后除莠。芽后除莠时,农作物高度为2-18cm,生长了2-3片叶。被处理的作物和未处理的对照作物在温室中生长大约11天。此时所有对处理过的作物与未处理的对照物相比较目测评估伤害程度。在表A中总结了植物灵敏度等级,由0至10,0表示无反应,10表示完全抑制生长,(-)表示没有试验结果。
表A  化合物  表A  化合物
剂量(2000g/ha)  59  60  剂量(2000g/ha)  59  60
芽后除莠  芽前除莠
稗子  10  0  稗子  9  0
宾州苍耳  -  0  宾州苍耳  -  0
马唐  1  0  马唐  0  0
大狗尾草  0  0  大狗尾草  0  0
牵牛花  0  0  牵牛花  0  0
高梁  0  0  高梁  0  0
苘麻  0  0  苘麻  0  0
野燕麦  0  0  野燕麦  0  0
黑雀麦  0  0  黑雀麦  0  0
试验B
将大麦(Hordeum  vulgare),稗子(Echinochloacrus-galli),猪殃殃(Galium  aparine)鼠尾看麦娘(Alopecurus  my  osuroides),黑雀麦(Bromus  secalinus),繁缕(Stellaria  media),宾州苍耳(Xanthium  pensylvanicum),玉米(Zea  mays),棉花(Gossypium  hirsutum),马唐(Digitaria  spp.),大狗尾草(Setaria  faberii),藜(Chenopodium  album),牵牛花(Ipomoea  hederacea),油菜(Brassica  napus),稻子(Oryza  sativa),高梁(Sorghum  bicolor),大豆(Glycine  max),甜菜(Betavulgaris),苘麻(Abutilon  the  ophrasti),小麦(Triticum  aestivum),野乔麦(Polygonum  convolvulus),和野燕麦(Avena  fatua)等的种子以及紫莎草(Cyperus  rotundus)块茎,用溶解于没有植物毒性的溶剂中的试验化合物进行芽前除莠。同时用试验化合物对这些作物和杂草进行芽后除莠试验。进行芽后除莠时作物生长度高为2-18cm(1-4片叶期)。被试验作物和对照作物在温室中生长12-16天。此时将所有被试验作物与对照作物相比,目测评估。植物灵敏度等级列于表B,由0-10,0表示无反应,10表示完全抑制,(-)表示无试验结果。
Figure 921059477_IMG96
Figure 921059477_IMG97
Figure 921059477_IMG98
Figure 921059477_IMG99
Figure 921059477_IMG100
Figure 921059477_IMG103
表  B  化合物
剂量  (100g/ha)  50  51  52  53  54  55  56  57  58
芽后除莠
大麦  0  0  0  0  0  0  0  0  0
稗子  2  4  5  7  10  10  2  9  10
猪殃殃  0  0  0  0  0  0  0  0  0
鼠尾看麦娘  0  0  0  0  0  0  0  0  0
黑雀麦  0  0  0  0  0  0  0  0  0
繁缕  0  0  0  0  0  0  0  0  0
宾州苍耳  0  0  0  0  0  0  0  0  0
玉米  0  0  0  0  0  0  0  0  0
棉花  2  6  0  0  0  0  0  0  0
马唐  0  0  0  0  0  0  0  0  0
大狗尾草  0  0  0  0  0  0  0  0  0
藜  0  0  0  0  0  0  0  0  0
牵牛花  0  0  0  0  0  0  0  0  0
莎草  0  0  0  0  0  0  0  0  0
油菜  0  0  0  0  0  0  0  0  0
稻  0  0  0  0  0  0  0  0  0
高梁  0  0  0  0  0  0  0  0  0
大豆  0  0  0  0  0  0  0  0  0
甜菜  0  0  0  0  0  0  0  0  0
苘麻  0  0  0  0  0  0  0  0  0
小麦  0  0  0  0  0  0  0  0  0
野乔麦  0  0  0  0  0  0  0  0  0
野燕麦  0  0  0  0  0  0  0  0  0
表  B  化合物
Rate(100g/ha)  50  51  52  53  54  55  56  57  58
芽前除莠
大麦  0  0  0  0  0  0  0  0  0
稗子  0  4  3  9  10  10  3  10  10
猪殃殃  0  0  0  0  0  0  0  0  0
鼠尾看麦娘  0  0  0  0  0  0  0  0  0
黑雀麦  0  0  0  -  0  0  0  0  0
繁缕  0  0  0  -  0  0  0  0  0
宾州苍耳  0  0  0  0  0  0  0  0  0
玉米  0  0  0  0  0  0  0  0  0
棉花  0  0  0  0  0  0  0  0  0
马唐  0  0  0  0  0  0  0  0  0
大狗尾草  0  0  0  0  0  0  0  0  0
藜  -  -  0  0  0  0  0  0  0
牵牛花  0  0  0  0  0  0  0  0  0
莎草  0  0  0  0  0  0  0  0  0
油菜  0  0  0  0  0  0  -  0  0
稻  0  0  0  0  0  0  0  0  0
高梁  0  0  0  0  0  0  0  0  0
大豆  0  0  0  0  0  0  0  0  0
甜菜  0  0  0  0  -  0  0  0  0
苘麻  0  0  0  0  0  0  0  0  0
小麦  0  0  0  0  0  0  0  0  0
野乔麦  0  0  0  0  0  0  0  0  0
野燕麦  0  -  0  0  0  0  0  0  0
试验C
在没有植物毒性的溶剂中将试验化合物制剂,并施用于复盖在土壤表面的水中(灌施)。分盆将稗子(Echinochloa  crus-galli)稻(Oryza  sativa),异型莎草(Cyperus  difformis)和沼生异蕊花(Heteranthera  limosa)等的种子种植于肥沃淤土中。处理前,种植异型莎草和沼生异蕊花后立刻在盆中浇上2.5cm的水并让其生长14天。种植的稗子和稻,让其生长10天(稗子为2片叶期),并在处理前一天浇水。试验期间,水的深度保持大约2.5cm。
所有作物的种子都生长在温室中。试验11至15天后将处理植物与对照物比较,目测评估。植物反应灵敏度列于表C,由0-10表示,0表示无反应,10表示完全抑制。(-)表示没有试验结果。
表C               表C
COMPOUND  COMPOUND
剂量(1000 g/ha)  1  59  剂量(62 g/ha)  3  59
芽后除剂  芽后除剂
沼生异蕊花  0  0  沼生异蕊花  0  0
稗  10  10  稗  10  7
日本稻  0  1  日本稻  0  0
异型莎草  0  0  异型莎草  0  0
剂量(500 g/ha)  1  3  21  59  剂量(31 g/ha)  21  43
芽后除剂  芽后除剂
沼生异蕊花  0  0  0  0  沼生异蕊花  0  -
稗  10  10  10  10  稗  10  10
日本稻  0  0  0  0  日本稻  0  0
异型莎草  0  0  0  0  异型莎草  0  -
剂量(250 g/ha)  1  3  59  剂量(8 g/ha)  21  43
芽后除剂  芽后除剂
沼生异蕊花  0  0  0  沼生异蕊花  0  -
稗  9  10  9  稗  10  8
日本稻  0  0  0  日本稻  0  0
异型莎草  0  0  0  异型莎草  0  -
剂量(125 g/ha)  1  3  21  43  59  剂量(2 g/ha)  43
芽后除剂  芽后除剂
沼生异蕊花  0  0  0  -  0  稗  5
稗  9  10  10  10  9  日本稻  0
日本稻  0  0  0  1  0
异型莎草  0  0  0  -  0
试验D
将塑料小盆装入部分肥沃淤土,浇灌水使泛溢,并向其中栽入日本稻(Oryza  sativa)发芽种子和1.5片叶移植苗。将稗子种(Echin0  chloa  crus-galli)种于润湿土壤中长至1片叶,2片叶和3片叶期以备试验用。试验时所有植物盆中的水保持在土壤表面上2cm。同时种植加州水包禾(Cal.watergrass)(E.oryzicola)。在无植物毒性的溶剂配制化学处理物并直接施于稻田水中。处理植物和对照植物在温室中生长大约21天。这时所有植物与对照物相比较并目测评估。在表D中列举了植物反应灵敏性,由0-10表示,0表示无反应,10表示完全抑制,(-)表示无试验结果。
表D  化合物                 表D  化合物
剂量(1000g/ha)  1  3  13  59  剂量(250g/ha)  1  3  13  59
稻田  稻田
1叶稗草  -  -  -  10       1叶稗草  -  -  -  10
2叶稗草  9  10  10  10     2叶稗草  9  10  10  10
3叶稗草  9  10  10  10     3叶稗草  8  10  10  10
直播日本稻  0  1  0  0    直播日本稻  0  0  1  0
日本稻效果  0  0  0  0    日本稻效果  0  0  0  0
剂量(500 g/ha)  1  3  13  59  剂量(125 g/ha)  1  3  13  59
稻田  稻田
1叶稗草  -  -  -  10        1叶稗草  -  -  -  10
2叶稗草  9  10  10  10      2叶稗草  8  10  10  10
3叶稗草  9  10  10  10      3叶稗草  7  10  10  10
直播日本稻  0  0  0  0      直播日本稻  0  0  1  0
日本稻效果  0  0  0  0      日本稻效果  0  1  0  0
表D  化合物
剂量(64  g/ha)   1  3 13 41 53 54 55 57 58 59 65 66  80  81
稻田
1叶稗草    -  -  -  -  -  -  -  -  - 9 -  - -  -
2叶稗草     7  10  10  -  -  - - -  -  10 - - -  -
3叶水包禾  -  -  -  9  8  7  8  9  9  -  0  0    8    8
3叶稗草    6  10  10  10  10  10  10  10  10  10  0  0 10 10
直播日本稻  0  1  1  0  0  0  0  0  0    0    0    1  0  0
日本稻效果  0  0  0  -  -  -  -  -  -  0  - - -  -
表D  化合物
剂量(32  g/ha)     3 13 37 41 43 45 53 54 55 57 58 59 65 66 80 81
稻田Y
2叶稗草     9  10  - 10 -  -  - - - - -  9 - - - -
3叶水包禾  -  -  0  9  5  7  5  6  8  8  8  -  0  0  6  7
3叶稗草    10 10 5 10 10 10 10 10  10  10  10 10 0  0  9  10
直播日本稻  0 1 0 5 0 0  0  0  0  0  0  0  0  0  0  0  0  10
日本稻效果  0  1  0 0  0  0  -  -  -  -  -  0  -   -   -   -
剂量(16 g/ha)3 13 37 41 43 45 53 54 55 57 58 59 65 66 80 81
稻田
2叶稗草     9  10  - 10 -  -  - - - - -  9 - - - -
3叶水包禾  -  -  0  8  3  4  3  5  8  7  7  -  0  0  8  6
3叶稗草    9 10  3  10 10 10 7 10  10  8  10 10  0  0  10  9
直播日本稻  0 1 0  5  0  0  0  0  0  0  0  0  0  0  0  0
日本稻效果  0  0  0 0  0  0  -  -  -  -  -  0  -   -   -   -
剂量(8 g/ha) 3 13 37 41 43 45 53 54 55 57 58 59 65 66 80 81
稻田
2叶稗草     8  10  - 10 -  -  - - - - -  9 - - - -
3叶水包禾  -  -  0  9  1  4  1  6  7  6  6  -  0  0  8  2
3叶稗草    8 9  1  10  9  10  6  10  10  9  9 9  0  0  10  9
直播日本稻    0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
日本稻效果  0  0  0  0  0  0  -  -  -  -  -  0  -   -  -   -
剂量(4 g/ha) 3 13 37 41 43 45 53 54 55 57 58 59 65 66 80 81
稻田
2叶稗草     6  10  - 10 -  -  - - - - -  9 - - - -
3叶水包禾  -  -  0  8  1  3  1  5  4  3  4  -  0  0  6  1
3叶稗草    5 9  3  10  6  9  3  10  10  4  7 9  0  0  10  5
直播日本稻    0  0  0  0  0  0  0  0  0  0  0  0  0  0  0  0
日本稻效果  0  0  0  0  0  0  -  -  -  -  -  0  -   -  -   -
表D  化合物
剂量(2g/ha)  3  13  37  41  43  45
稻田
2叶稗草  0  -  -  10  -  -
3叶水包禾  -  -  0  5  1  3
3叶稗草  4  4  4  10  3  9
直播日本稻  0  0  0  0  0  0
日本稻效果  0  0  0  0  0  0
试验E,F,和G(混合物)
向塑料小盆中装入部分肥沃淤土并浇以水。使泛溢。向其中栽入日本稻(Oryza  sativa)发芽种子和1.5叶的移植苗。将稗子种子种植在浸透的土壤中使其长至1叶,2叶和3叶(3lf)期以备试验用。试验时所植物盆中水面保持高于土壤表面2cm。在没有植物毒性的溶剂中配制试验化合物并直接施于稻田水中。试验植物和对照物在温室中生长大约21天,此时所有试验植物与对照物相比,目测评估。植物反应灵敏度总结于表E,用0-100表示,其中0表示无效果,100表示完全抑制,(-)表示没有试验结果。
括号内的数据是用Colby公式预测的混合物活性
A(1,2)=A(1)+A(2)-A(1)×A(2)/100
其中A(1)和A(2)分别是化合物“1”和“2”的活性;A(1,2)是预测的含有“1”和“2”混合物的活性。
试验E
表E1
将化合物41,89,88和86施于日本土壤(Toride  Lt  clay)中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
89  200  55
88+86  9+30  75
41  64  95
41  125  85
41  250  90
89+41  200+64  95(98)
89+41  200+125  95(93)
89+88+86+41  200+9+30+64  98(99)
89+88+86+41  200+9+30+125  100(99)
表E2
将化合物41,91和86施于日本土(Toride  Lt  clay)中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
91  1200  25
86  50  35
41  64  95
41  125  85
41  250  90
91+86  1200+50  55(51)
91+86+41  1200+50+64  85(98)
表E3
将化合物41,92施于日本土(Toride  Lt  clay)中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
92  20  50
41  64  95
41  125  85
41  250  90
92+41  20+64  98(98)
92+41  20+125  95(93)
92+41  20+250  95(95)
表E4
将化合物41,88和90施于日本土(Toride  Lt  clay)中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
88+90  9+4  60
41  64  95
41  125  85
41  250  90
88+90+41  9+4+64  90(98)
88+90+41  9+4+125  95(94)
88+90+41  9+4+250  100(96)
表E5
将化合物41,86施于日本土(Toride  Lt  clay)中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量 g/ha  %抑制
未处理的对照  0  0
86  50  35
41  64  95
41  125  85
41  250  90
86+41  50+64  85(97)
86+41  50+125  95(90)
86+41  50+250  90(94)
试验F
表F1
将化合物41,88,86和89施于Tama中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
89  300  20
88+86  9+30  45
41  64  75
41  250  75
89+88+86  300+9+30  45(56)
89+88+86+41  300+9+30+64  98(86)
89+88+86+41  300+9+30+250  95(86)
表F2
将化合物41,89和87施于Tama土中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
89  300  20
87  40  10
41  64  75
41  250  75
89+87  300+40  20(28)
89+87+41  300+40+64  90(80)
89+87+41  300+40+250  80(80)
表F3
将化合物41,89和95施于Tama土中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
89  300  20
95  90  10
41  64  75
41  250  75
89+95  300+90  40(28)
89+95+41  300+90+64  98(85)
89+95+41  300+90+250  90(85)
表F4
将化合物41,88和86施于Tama土中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
88+86  9+30  45
41  64  75
41  250  75
88+86+41  9+30+64  85(78)
88+86+41  9+30+250  90(86)
表F5
将化合物41,87施于Tama土中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
87  40  10
41  64  75
41  250  75
87+41  40+64  85(78)
87+41  40+250  85(78)
表F6
将化合物41,和95施于Tama土中的三叶期加州水包禾(E.oryzicola)。
化合物序号  剂量g/ha  %抑制
未处理的对照  0  0
95  90  30
41  64  75
41  250  75
95+41  90+64  85(82)
95+41  90+250  100(82)
试验G
将日本稻种(M202)直接种于小盆,并在2叶阶段进行处理。处理前使加州水包禾长至3叶(LW3)。处理17天后目测伤害百分率结果。由Colby′s公式计算的有效成份的除草活性也列于表中(括号内数据)。
表G1
化合物93,41,88和86
%抑制
化合物序号  剂量  稻  LW3
88+86  9+30  25  55
41  64  0  70
41  250  0  80
93  150  10  15
93+41  150+64  10  70(74.5)
93+41  150+250  15  75(83.0)
93+41+88+86  150+64+6+30  20  80
93+41+88+86  150+250+6+30  25  80
表G2
化合物  93,13,88,and  86
%抑制
化合物序号  剂量g/ha  稻  LW3
93  150  10  15
13  64  0  80
13  250  0  75
93+13  150+64  0  75(83.0)
93+13  150+250  0  70(78.8)
93+13+88+86  150+64+6+30  25  85
93+13+88+86  150+250+6+30  25  80
93+41+88+86  150+250+6+30  25  80
表G3
化合物94,41和13
%抑制
化合物序号  剂量g/ha  稻  LW3
88+86  9+30  25  55
41  64  0  70
41  250  0  80
13  64  0  80
13  250  0  75
94  45  25  50
94+41  45+64  30  85(82.5)
94+41  45+250  25  85(90.0)
94+41  45+64  30  85(90.0)
94+41  45+250  25  80(87.5)
表BLE  G4
化合物96,41,88和86
%抑制
化合物序号  剂量g/ha  稻  LW3
41  9+30  25  55
41  64  0  70
41  250  0  80
96  60  10  30
96+41  60+64  15  90(79)
96+41  60+250  10  85(86)
96+41+88+86  60+64+9+30  25  85
96+41+88+86  60+250+9+30  20  85
表G5
化合物96,13,88和86
%抑制
化合物序号  剂量g/ha  稻  LW3
88+86  9+30  25  55
96  60  10  30
13  64  0  80
13  250  0  75
96+13  60+64  0  85(86)
96+13  60+250  10  90(82.5)
96+13+88+86  60+64+9+30  25  80
96+13+88+86  60+250+9+30  25  90
表BLE  G6
化合物97,41,88和86
%抑制
化合物序号  剂量g/ha  稻  LW3
88+86  9+30  25  55
41  64  0  70
41  250  0  80
97  250  0  35
97+41  250+64  0  98(82)
97+41  250+250  0  95(83.8)
97+41+88+86  250+64+9+30  20  80
97+41+88+86  250+250+9+30  25  80
表G7
化合物97,13,88和86
%抑制
化合物序号  剂量g/ha  稻  LW3
97  250  0  35
88+86  9+30  25  55
13  64  0  80
13  250  0  75
97+13  250+64  0  90(87)
97+13  250+250  0  95
97+13+88+86  250+64+9+30  20  80
97+13+88+86  250+64+9+30  20  80

Claims (10)

1、控制作物中非期望植物生长的农业上适用的组合物,它含有有效量的式Ⅰ化合物
其中
R1是Cl,Br,I,OCH3,OCHF2或OCF3
R2是CN,CO2R4,CHO,C(X)NR17R18,C(S)OR6,C≡CH,CHR19OR20,CH=NOR7或CH=CR21R22
R3是正丙基;C4-C10烷基;被一个或多个卤原子,OR8,SR9或NR10R11取代的正丙基或C4-C7烷基;被OR16,CO2(C1-C2烷基)或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基取代的C1-C3烷基;C3-C6环烷基;CH2(C3-C6环烷基);被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基;被一个或多个卤原子或CO2(C1-C2烷基)任意取代的C2-C6链烯基;OR12;SR13;或NR14R15
R4是H,C1-C2烷基,
Figure 921059477_IMG2
R6,R7,R8,R9,R10和R11各自独立地为H或C1-C2烷基;
R12和R13各自独立地为被一个或多个卤原子,OR8,SR9或NR10R11任意取代的C2-C10烷基;被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基;或苄基;
R14和R15各自独立地为H或C1-C2烷基,或可一起代表-(CH2)4-,-(CH2)5-或-(CH2CH2OCH2CH2)-;
R16是H,C1-C8、烷基;被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苄基;或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基;
R17是H,C1-C2烷基或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基;
R18是H,C1-C2烷基,C3-C6环烷基,CH2(C3-C6环烷基),O(C1-C4烷基),O-烯丙基或与R17-代表-(CH2)4-,-(CH2)5-或-(CH2CH2OCH2CH2)-;
R19是H或C1-C2烷基;
R20是H或C(O)CH3
R21和R22各自独立地为H,CN,CO2R4,C(X)NR17R18或卤原子;
X是O或S;
或它们的N一氧化物或其农业上适用的盐,以及至少一种以下成份:表面活性剂,固体或液体稀释剂。
2、权利要求1所述组合物,其中
R1是Cl,Br,I或OCH3;
R2是CN,CO2R4,CHO,C(X)NH2,C(X)NH(C1-C2烷基),C(X)N(C1-C2烷基)2,C(S)OR6或C≡CH;
R3是正丙基,C4-C6烷基,C3-C6环烷基或苯基;
R4是H或C1-C2烷基,以及
R6是C1-C2烷基。
3、权利要求1的组合物,其中
R1是Cl,Br或I;
R2是CN,CO2H,CO2CH3,CO2CH2CH3,CHO,C(O)NH2,C(O)NHCH3,C(O)N(CH32,CH2OH,或CH=NOR7;
R3是正丙基;C4-C7烷基;被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基取代的C2烷基;CH2(C3-C6环烷基);或被一个或多个CH3,CF3,OCH3,SCH3或卤原子任意取代的苯基。
4、权利要求3的组合物,其中
R1是Cl或Br;
R2是CN,CO2H或C(O)NH2;
R3是C4-C7烷基或CH2(C3-C6环烷基)。
5、权利要求4的组合物,其中R3是吡啶6位上的取代基。
6、权利要求5的组合物,其中的化合物是2-溴-6-(3-甲基丁基)-3-吡啶羧酰胺或2-氯-6-(3-甲基丁基)-3-吡啶羧酰胺。
7、一种向被保护作物田中施用有效量的权利要求1-6中的组合物,控制农作物中非期望植物生长的方法。
8、权利要求1的组合物为R1是Br或Cl,R2是C(O)NH2,R3是CH2CH2CH(CH32的式Ⅰ化合物与一种或多种选自下组中除草化合物的混合物:苄嘧磺隆,mefenacet,甲磺隆,吡啶磺隆,丁草胺,N-[2-(2-甲氧基-乙氧基苯磺酰]-N′-4,6-二甲氧基-1,3,5-三嗪-2-基脲;N-[[(4,6-二甲氧基嘧啶-2-基)氨基]羰基]-1-甲基-4-(2-甲基-2H-四唑-5-基)-1H-吡唑-5-磺酰胺;S,S-二甲基2-(二氟甲基)-4-(2-甲基丙基)-6-(三氟甲基)-3,5-吡啶硫代二甲酸酯;和3-氯-N-[[(4,6-二甲氧基-2-嘧啶基)-氨基]羰基]咪唑[1,2-a]吡啶-3-磺酰胺。
9、权利要求8的组合物,其中除草化合物选自丁草胺和3-氯-N-[[(4,6-二甲氧基-2-嘧啶基)氨基]羰基]咪唑-[1,2-a]吡啶-3-磺酰胺。
10、权利要求8的组合物,其中R1是Br,除草化合物是mefenacet。
CN92105947A 1991-06-12 1992-06-12 取代吡啶除草剂 Pending CN1069972A (zh)

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