CN1110274A - 氧化偶氮基氰基苯衍生物 - Google Patents
氧化偶氮基氰基苯衍生物 Download PDFInfo
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- CN1110274A CN1110274A CN94109116A CN94109116A CN1110274A CN 1110274 A CN1110274 A CN 1110274A CN 94109116 A CN94109116 A CN 94109116A CN 94109116 A CN94109116 A CN 94109116A CN 1110274 A CN1110274 A CN 1110274A
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Abstract
本发明涉及某类特定的式I氧化偶氮基氰基苯
衍生物:
其中R为任意取代的烷基,链烯基,链炔基,环烷基,环烯基,芳基或杂环基团;R1为卤原子,硝基,氰基或任意取代的烷基,烷氧基,芳基或芳氧基团;R2为氢,或卤原子,硝基,氰基或任意取代的烷基或烷氧基;其制法,含该类化合物的组合物以及作为杀真菌剂的用途。
Description
本发明涉及一种特定的氧化偶氮基氰基苯衍生物,其制法,含该化合物的组合物以及其作为杀真菌剂的用途。
EP-A-0411716公开了一类杀真菌组合物,它包括一种载体及具有下列通式的化合物:
或其N-氧化物作为活性组份,其中R为取代的苯基,其中至少有一个取代基是式-NR1COR2基团,其中R1为氢原子或烷基,而R2为氢原子或任意取代的烷基,烷氧基,链烯基,链烯氧基,苯基或苯氧基;X为氰基、-COOH基,或由此衍生而得的盐、酯或酰氨基衍生物。但是,在每个例子中,取代的苯基基团R只有一个取代基是-NR1COR2。
已经发现,某些在苯环上除了氧化偶氮基氰基之外还具有至少2个取代基的氧化偶氮基氰基苯衍生物,对某些特定的植物病原性真菌显示良好的活性。
根据本发明,提供一种具下列通式(Ⅰ)的化合物:
其中R为任意取代的烷基,链烯基,链炔基,环烷基,环烯基,芳基或杂环基团;R1为卤原子,硝基,氰基或任意取代的烷基,烷氧基,芳基或芳氧基团;R2为氢,或卤原子,硝基,氰基或任意取代的烷基或烷氧基。
当本发明的化合物含烷基,链烯基或链炔基等取代基时,它们可以是直链的或支链的,可以含有高达12个,较佳高达6个,最佳高达4个碳原子。环烷基或环烯基可以含有3-8个,较佳为3-6个碳原子。芳基可以是任一种芳香烃基团,尤其是苯基或萘基。杂环基团可以是任何饱和的或不饱和的环体系,它含有至少一个杂原子,优选的是3员至6员环,特别优选的是5员和6员环。含氮、含氧和含硫的杂环,如吡啶基,嘧啶基,吡咯烷基,呋喃基,吡喃基,吗啉基和噻吩基是特别优选的。
当前述的取代基是任意取代时,任意存在的取代基是一种或多种在开发杀虫剂化合物和/或修饰这类化合物以影响它们的结构/活性,持久性,渗透性或其它性质中使用的常规基因。这类取代基的特定例子包括,例如,卤素原子、硝基、氰基、羟基、烷基、卤代烷基、烷氧基、卤代烷氧基、氨基、烷氨基、二烷氨基、甲酰基、烷氧基羰基、羧基,链烷羧酰基、环烷基、烷基硫代、烷基亚磺酰基、烷基磺酰基、氨甲酰基和烷基酰氨基。当前述的取代基代基代表或含有烷基取代基时,这可以是直链或支链,且可以含有直至12个,较好地是直至6个,最好是直至4个碳原子。典型地是可存在0-3个取代基,最常见是0或1个取代基。
较佳的是,R为C1-6烷基,C2-6链烯基,C2-6链炔基,C3-8环烯基或苯基,或3员至6员杂环,每种基团或环均可被一个或多个选自下列基团的取代基所任意取代:卤原子,硝基,氰基,羟基,C1-4烷基,C1-4卤代烷基,C1-4烷氧基,C1-6卤代烷氧基,氨基,C1-4烷基氨基,双-C1-4烷基氨基,C1-4烷氧羰基和C3-8环烷基。
更佳的,R为C1-6烷基,C2-4链烯基,C3-6环烯基或苯基或5员-6员杂环(尤其是含氧杂环),每种基团或环均可被一个或多个选自下列基团的取代任意取代:卤素原子(尤其氟和氯),C1-4烷氧基,C1-4烷氧羰基和C3-6环烷基。
较佳的,R1为卤原子,硝基或氰基,或者C1-6烷基,或C1-6烷氧基,都可被一个或多个选自下列基团的取代基所任意取代:卤原子,硝基,氰基,羟基和氨基。
更佳地,R1为卤原子(尤其氯),氰基,或者C1-4烷基(尤其甲基)或C1-4烷氧基(尤其甲氧基),都可被一个或多个卤原子(尤其氟或氯)任意取代(但较好的是不要被取代)。
R2为氢或卤原子(尤其氯)也是优选的。
较佳的,-NHCOR基团连接于氧化偶氮基氰基苯部分中的苯环的3位或(尤其4位)。R1连于4位或尤其3位,以及R2连于5位也是优选的。
一类特别优选的式Ⅰ化合物中,R为甲基,乙基,丙基,丁基,戊基,氯代甲基,氯代乙基,溴代乙基,乙氧基羰基甲基,环戊基乙基,丙烯基,三甲基环己烯基,二氟苯基,三甲氧基苯基或呋喃基;R1为氯原子或氰基,甲基或甲氧基;和R2为氢或氯原子的式Ⅰ化合物。
也应当注意Ⅰ化合物可以是下述等电子形式:
其中Ar代表:
本发明的范围也覆盖所有这类形式。
本发明也提供了制备上述定义的式Ⅰ化合物的方法,包括用由过氧化氢和甲酸的混合物和/或用过氧化甲酸来处理下式化合物:
其中R、R1和R2的定义同上。
在使用过氧化氢和甲酸混合物时,过氧化氢的浓度适当地少于75%(重量),较好地少于50%(重量),最好少于40%(重量)。在较好实例中,过氧化氢的浓度约为30%(重量)。
该方法较好在室温或高于室温下进行,更好的是在高于室温下进行。该方法可在25-75℃温度范围下进行,较好地在30-50℃范围下进行。
较好的是,使式Ⅱ化合物与甲酸及过氧化氢在室温下混合。然后较好地使混合物加热,适当地在60℃下加热数小时,然后使混合物冷却,例如在冰浴中冷却。所需的产品可用标准技术分离。
制备式Ⅱ化合物的一般方法由R.J.W.LeFever和H.Vine,J.Chem.Soc.,(1938).431提供。
本发明进一步提供了制备上述定义的式Ⅰ化合物的另一种方法,包括使下式Ⅲ与氨基氰或其金属盐及氧化剂反应:
其中R、R1和R2的定义同上。
氧化剂可以是任何能与氨基氰或其金属盐在一起使用而产生氰基氮烯的化合物。较好的例子包括二乙酸碘代苯,二溴异氰脲酸和环或直链N-卤代或假卤代酰胺或酰亚胺,特别是N-溴代琥珀酰亚胺。
若在本发明的方法中使用了氨基氰的金属盐,较好的是金属盐是碱金属或碱土金属盐。可替换的是,这类金属盐通过使氨基氰与碱金属氢氧化物或碱土金属的氢氧化物在现场反应而产生。使用氨基氰单钠尤为优选。可替换的是,这通过使浓的氨基氰溶液与氢氧化钠反应以有效地在现场产生氨基氰单钠来进行。
适当的是,该反应在有机溶剂存在下,较好的在二甲基甲酰胺或卤代烃,如二氯甲烷的存在下进行,该反应较好地在-20℃至50℃温度下进行。
式Ⅲ化合物可按如下制备,其中Ar的定义同上:
(见说明书附图图1)
在反应A中,例如通过使硝基化合物与水合肼在氢转移催化剂,如碳上的铑存在下,适当的是在惰性极性有机溶剂中,例如四氢呋喃的存在下,较好的是进行冷却的条件下反应从而使反应A有效地进行,或者用水、氯化亚锡作为还原剂,用惰性、极性有机溶剂,例如四氢呋喃,在惰性气氛下,如在氮气下,并有乙酸钠存在下,适当的在室温下使反应A有效。
在反应B中,通过用氧化剂,例如Fe3+化合物,适当的是三氯化铁来处理羟胺衍生物可使反应B有效。该反应在混合物的水/极性有机溶剂中,较好的是同时冷却下进行。
在反应C中将硝基化合物较好地溶于惰性有机溶剂,如苯中,通过辐照来进行反应C。辐照用中等压力的汞灯来进行。
上述方法的细节在本申请人的共同待批欧洲专利申请第92120580.3和TS 8009EPC中可以找到,其它的用来制备式Ⅰ化合物的方法及这里所述方法的说明可以从The Journal of Antibiotics,1975年1月,p.87-90和1986年6月,p.864-868;Eur.J.Med Chem.-Chim.Ther.,1982,17,No,5,p.482-484,和1980,15,No.5,p.475-478,和1997,12,No.1,p.59-62;J.Chem.Soc.,Chem.Commun.,1984,p323-324;in Chem.Ind.(Milan),1977,59(5),p.385;Gazetta Chimica Italiana,106,1976,p.1107-1110;Tetrahedron Letters,No.38,1974,p.3431-3432;及U.S.专利Nos.4558040和4550121中找到。
据发现式Ⅰ化合物有杀真菌活性,因此,本发明进一步提供了一种杀真菌组合物,它包括一种载体及作为活性组份的如上所定义的式Ⅰ化合物。本发明也提供了制备这类组合物的方法,它包括将如上所定义的式Ⅰ化合物与至少一种载体结合在一起。这类组合物可含有本发明的单一化合物或几种化合物。也可以设想不同的异构体或异构体混合物具有不同的活性水平和不同的杀真菌谱。该组合物可以包括单个异构体、或异构体的混合物。
本发明的组合物含有0.5-95%(重量)的活性组分。
本发明的组合物中的载体可以是任何能与活性组份一起配成便于施用于如植物、种子或土壤的地方或便于贮存、运输或处理的物质载体可以是固体或液体,包括一般为气体但加压能形成液体的物质,以及一般可正常地用来配制杀真菌剂的组合物的任何载体。
适当的固体载体包括天然和合成陶土及硅酸盐,如诸如硅藻土的天然硅酸盐;硅酸镁,如滑石粉、硅酸镁铝,如美国活性白土和蛭石;硅酸铝,如高岭土、蒙脱土和云母类,碳酸钙;硫酸铵;合成水合氧化硅及合成的硅酸钙或铝;几种元素,如碳和硫;天然和合成树脂类,如苯并呋喃树脂、聚氯乙烯和苯乙烯聚合物及共聚物;固体聚氯苯酚类;沥青;蜡;如蜂蜡、石蜡和氯化的矿物蜡;以及如酸性磷酸盐的固体肥料。
合适的液体载体包括水;醇类,如异丙醇和乙二醇类,酮类,如丙酮、甲乙酮、甲基异丁基酮和环己酮;醚类;芳烃或芳脂族烃类,如苯,甲苯和二甲苯;石油馏分,如煤油和轻质矿物油;氯代烃,如四氯化碳、全氯乙烯和三氯乙烷。不同的液体的混合物也是合适的。
常常把杀真菌组合物在配方及运输过程中配成浓缩物形式,在使用前由使用者稀释。而少量表面活性的载体使溶解过程便利。在本发明组合物中较好的是至少一种是表面活性剂。例如,该组合物可含有至少两种载体,其中至少一种是表面活性剂。
表面活性剂可以是乳化剂,分散剂或湿润剂;它可以是非离子型或离子型。适当的表面活性剂例子包括聚丙烯酸和木素磺酸的钠盐或钙盐;分子中含有至少12个碳原子的脂肪酸,脂肪胺或酰胺与环氧己烷和/或丙烯氧化物的缩合产物;乙二醇、山梨醇、蔗糖或季戊四醇的脂肪酸酯;这些与环氧乙烷和/或丙烯氧化物的缩合物,脂肪醇或烷基苯酚的缩合基物如对-辛基苯酚或对-辛基甲酚与环氧己烷和/或丙烯氧化物的缩合产物;这些缩合产物的硫酸酯或磺酸酯;在分子中含有至少10个碳原子的硫酸酯或磺酸酯的碱金属盐或碱土金属盐,较好的是钠盐,如硫酸月桂酯钠、仲烷基硫酸酯钠、磺化蓖麻油的钠盐以及烷芳基磺酸酯钠,如十二烷基苯磺酸钠;以及环氧乙烷聚合物以及环氧乙烷和丙烯氧化物的共聚物。
本发明的组合物例如可以配成可湿性粉末、粉剂、颗粒剂、溶液、可乳化浓缩物、乳浊液、悬浮液浓缩物以及气溶胶。可湿性粉末一般含有25、50或75%(重量)活性组份,通常另外还含有固体惰性载体,3-10%(重量)分散剂以及需要时,有0-10%(重量)稳定剂和/或诸如渗透剂或粘合剂的其它添加剂。粉剂一般配成与可湿性粉末相似的粉剂浓缩物,但其中无分散剂,它在大田中用固体载体稀释以得到通常含有1/2-10%(重量)的活性组份。颗粒被制成粒径为10-100BS筛目(1.676-0.152mm),这可通过附聚或浸渍技术来制备。一般来说,颗粒剂含有1/2-75%(重量)活性组份及0-10%(重量)诸如稳定剂、表面活性剂、缓释剂和粘合剂的添加剂。所谓的“干流动粉末”由相对高浓度活性组份的相当小的颗粒构成。可乳化浓缩物除了溶剂及需要时的共溶剂外,一般含有1-50w/v活性组分,2-20%w/v乳化剂及0-20%w/v的其它添加剂,如稳定剂、渗透剂和腐蚀抑制剂。通常复合悬浮浓缩物以得到稳定、无沉积的可流动产品,通常含有10-75%(重量)活性组分、0.5-15%(重量)分散剂,0.1-10%(重量)悬浮剂,如保护胶体剂及触变剂,0-10%(重量)其它添加剂,如去泡沫剂、腐蚀抑制剂、稳定剂、渗透剂和粘着剂,以及活性组份在其中基本不溶的水和有机液体;在配方中可存在某些有机固体或无机盐以辅助防止沉积或作为水的防冻剂。
通过用水来稀释本发明的可湿粉末或浓缩物所得的水分散液和乳剂组合物也在本发明的范围内。所述的乳剂可以是水包油或油包水型,也可以有稠厚的似“蛋黄酱”状构成。
本发明的组合物也可含有其它组份,例如具有除草剂、杀虫剂或杀真菌性质的其它化合物。
在增加本发明化合物保护活力的持续性方面是使用一种载体,该载体使杀真菌化合物缓慢释放至被保护的植物环境中。这类缓释剂配方,例如,可以插入与蔓状植物的根相邻的土壤中或者可以包括一种粘合组份,从而使之能直接施用于蔓状植物的茎上。
本发明进一步提供了上面所定义的式Ⅰ化合物或上面定义的组合物用作杀真菌剂的用途以及一种抗击真菌的方法,包括用这类化合物或组合物来处理所施用地区,这种地区有例如易被真菌侵袭的植物,这类植物的种子或植物生长于其中或将要生长于其中的介质。可用0.05-4kg/公顷,较好地以0.1-1kg/公顷的施用率将化合物Ⅰ来处理施用地区。
本发明可以广泛地保护作物免受真菌侵袭。可被保护的典型作物包括葡萄、如小麦和大麦的谷类作物、苹果和西红柿。保护的持续时间根据所选择的单个化合物,以及种种外界因素,如气候的影响,这种影响可由使用适当的配方制剂得以缓解。
本发明由下述实施例作进一步的阐述。
实施例1
制备3-甲氧基-4-丙酰氨基-1-氧化偶氮基氰基苯
(-NHCOR基团位置=4;R=-C2H5;R1=3-OCH3;R2=H)
将3-甲氧基-4-丙酰氨基-1-亚硝基苯(2.7g,13.0mmol)和氨基氰(0.51g,11.8mmol)溶于二氯甲烷(60ml)中。在0-5℃,于氮气中滴加二乙酸化磺代苯(5.34g,14.6mmol)的二氯甲烷溶液。混合物在室温下搅拌过夜,过滤并蒸干。在硅胶上进行柱色谱法层析分离用1∶1的石油醚:乙酸乙酯洗脱,得2.0g(62%产率)3-甲氧基-4-丙酰氨基-1-氧化偶氮基氰基苯,为黄色粉末。熔点:142-144℃,m/e(M+):248
1H-NMR(CDCl3):δ(ppm)=1.20(t,CH3);2.42(q,CH2);3.93(s,OCH3);7.67,7.78,8.55(m,Ar-H);8.02(s,NH)。
实施例2
制备3-甲氧基-4-(2-氯丙酰氨基)-1-氧化偶氮基氰基苯
(-NHCOR基团位置=4;R=-CHCl-CH3;R1=3-OCH3;R2=H)
将3-甲氧基-4-(2-氯丙酰氨基)-1-亚硝基苯(6.1g.25.1mmol)溶于二氯甲烷(100ml)中。加入氨基氰(1.02g,24.3mmol)和二乙酸化碘代苯(8.9g,27.6mmol)。混合物在0℃搅拌1小时,在室温下搅拌24小时。得到的黄色悬浮液经过滤并蒸干。在硅胶上进行柱色谱层析法分离,以甲苯为洗脱剂,得3.4g(47%产率)3-甲氧基-4-(2-氯丙酰氨基)-1-氧化偶氮基氰基苯,为黄色固体。熔点:151℃,m/e(M+):282/285
1H-NMR(CDCl3):δ(ppm)=3.92(s,OCH3);7.38,7.60-7.90(m,Ar-H);8.12(s,NH)
实施例3
制备3-丙酰氨基-4-甲氧基-1-氧化偶氮基氰基苯
(-NHCOR基团位置=3;R=-C2H5;R1=4-OCH3;R2=H)
(a)制备3-丙酰氨基-4-甲氧基-1-偶氮氰基苯
将3-丙酰氨基-4-甲氧基-1-氨基苯(3.0g,15.4mmol)溶于水(3.8ml)和盐酸(4.4ml,35%w/w)的混合物中。加入碎冰(17g)之后,溶液通过加入亚硝酸钠(1.09g,15.7mmol)而重氮化。冷溶液用NaOH(10%w/w)中和,加入三氯甲烷(40ml),将反应混合物冷至约0℃。加入溶于水(7.5ml)的氰化钾(1.0g,15.4mmol)后,分离有机层,用Na2SO4干燥,蒸干并过滤,得3.35g(93.6%产率)3-丙酰氨基-4-甲氧基-1-偶氮氰基苯,为橙色晶体。
(b)制备3-丙酰氨基-4-甲氧基-1-氧化偶氮基氰基苯
将在(a)中制备的粗3-丙酰氨基-4-甲氧基-1-偶氮氰基苯(1.0g,4.3mmol)悬浮于甲酸(10ml)和H2O2(5ml,50wt%)的混合物中。将混合物加热至60℃24小时,然后于冰浴中冷却。收集产生的晶体并用水洗,得0.47g(44%产率)3-丙酰氨基-4-甲氧基-1-氧化偶氮基氰基苯,为橙色固体。
熔点:186-190℃,m/e(M+):248
1H-NMR(CDCl3):δ(ppm)=1.25(t,CH3-C);2.45(q,COCH2);4.05(s,OCH3);6.93,7.98(m,Ar-H);9.35
(s,NH)
实施例4-25
用上述实施例1-3所述的方法进一步制得了本发明的化合物,如下表Ⅰ所列,在该表中化合物的结构式参照式Ⅰ。在下表ⅠA中给出了实施例4-25化合物的熔点、质谱(m/e)和1H核磁共振值。
表Ⅰ
(注意:在所有下面的例子中,-NHCOR基团位于(相对于氧化偶氮氰基)苯环的4位)
实施例序号 R R1R2
4 -CH33-OCH3H
5 呋喃-2-基 3-OCH3H
6 -nC3H73-OCH3H
7 -iC3H73-OCH3H
8 -nC5H113-OCH3H
9 -tC4H93-OCH3H
10 -CH2Cl 3-OCH3H
11 -CH=CHCH33-OCH3H
12 -nC4H93-OCH3H
13 -CH2COOC2H53-OCH3H
14 -CH33-CH3H
15 -CH33-Cl 5-Cl
16 -CH33-Cl H
17 -CH2CH2Cl 3-OCH3H
18 2,6-F2苯基 3-OCH3H
19 -CH2CH2Br 3-OCH3H
20 -CH2CH2环戊基 3-OCH3H
21 3,4,6-(CH3)3环己-3-基 3-OCH3H
实施例序号 R R1R2
22 3,4,5-(OCH3)3苯基 3-OCH3H
23 -CH33-CN H
24 -C2H53-CN H
25 -nC3H73-CN H
表 IA
实施例 熔点 m/e1H核磁共振(CDCl3):δ
序号 (℃) (M+) (ppm)
2.23(s,CH3CO);4.08(s,
4 234 OCH3);7.88,8.02,8.50(m,
Ar-H);9.80(s,NH)
4.05(s,OCH3);6.58,7.30,
5 155-160 286 7.56,7.78,7.98,8.66(m,Ar-
H)
1.00,1.74,2.40(m,丙基);
6 144 262 3.98(s,OCH3);7.70,7.92,
8.58(m,Ar-H);7.99(s,NH)
1.26(d,2xCH3);2.60(septet,
7 122-125 262 CH);3.98(s,OCH3);7.70,
7.93,8.59(m,Ar-H);8.05(s,
NH)
实施例 熔点 m/e1H核磁共振(CDCl3):δ
序号 (℃) (M+) (ppm)
0.88,1.35,1.72,2.42(m,戊
8 118-120 290 基);3.98(s,OCH3);7.69,
7.92,8.57(m,Ar-H);8.02(s,
NH)
1.30(s,叔-丁基);4.02(s,
9 155-157 276 OCH3);7.72,7.95,8.60(m,
Ar-H);8.33(s,NH)
4.03(s,OCH3);4.26(CH2Cl);
10 177-179 269/271 7.77,7.89,8.55(m,Ar-H);
9.20(s,NH)
1.95(m,CH3);4.00(s,OCH3);
11 184-186 260 6.00,7.05(m,CH=CH);7.72,
7.96,8.68(mAr-H);7.99(s,
NH)
0.93,1.38,1.72,2.43(m),
12 145-147 276 3.98(s,OCH3);7.70,7.95,
8.60(m,Ar-H);8.00(s,NH)
1.31(t,CH3);4.25(q,CH2);
13 133-136 306 4.02(s,OCH3);7.72,7.93,
8.55(m,Ar-H);10.09(s,NH)
实施例 熔点 m/e1H核磁共振(CDCl3):δ
序号 (℃) (M+) (ppm)
14 199-203 218 2.12(s,CH3);2.32(s,COCH3);
8.10(m,Ar-H);9.46(s,NH)
15 225-226 2.17(s,CH3CO);(35/37Cl);
8.48(s,Ar-H);10.28(s,NH)
16 168-170 238/140 2.23(s,CH3CO);8.20-8.40
(m,Ar-H);9.92(s,NH)
17 208-211
18 202-204
19 167-170
20 123
21 175
22 188-193
23 195-200
24 201
25 173-176
实施例26
通过下列试验来研究本发明化合物的杀真菌活性
(a)对阔叶大豆灰霉(Botrytis cinerea;BCB)的直接保护活性
该试验是对叶簇进行喷洒而直接起保护作用。用测试化合物在1∶1水/含有0.04%“TWEEN20”(商标;聚氧乙烯山梨醇酯的表面活性剂)的丙酮的溶液来对阔叶大豆植物(轮作The Sutton)的叶子与表面进行喷洒。用带有自动喷嘴的自动化喷管来处理植物。化合物浓度为1000ppm,喷雾体积为700升/公顷。喷洒叶24小时后用含有105分生孢子/ml的水悬浮液接种。将该植物放在21℃的湿度箱内保持4天。接种后4天根据叶表面受损的百分率来评价病状。
(b)对西红柿早期枯萎病(Alternaria Solani;AS)的活性
该试验是用叶簇喷雾来测量试验化合物的接触预防活性。使西红柿秧生长至第二真叶伸展开的阶段。用如(a)所述的自动喷雾管来处理植物。以在含有0.04%表面活性剂(TWEEN 20-商标)的丙酮和水(50∶50v/v)的混合物中的悬浮液或溶液来施用试验化合物。在处理秧菌后的一天用含有104孢子/ml的A.Solani分生孢子混悬液喷洒在叶子上表面,接种后将植物放在21℃中的湿度箱中放置4天。接种后4天根据叶子表面损伤面积的百分率来评价病状。
(c)对小麦眼状颜色斑点(Pseudocercosporella herpotrichoides;PHI)的体外活性
该试验用来测量化合物对由真菌引起的小麦眼状颜色斑点的体外活性。将试验化合物溶解或悬浮在丙酮中,并加入至4ml等分的分装在25个间隔的培养皿中的半强度的土豆葡萄糖液体培养基中,以得到最终浓度为50ppm化合物和2.5%丙酮,每个间隔中用一块6mm直径的琼脂块/菌上接种(该菌丝系从P.herpotrichoides的14天龄的培养物中取得),将平板在20℃下培养12天,直至可评价菌丝的生长。
上述试验中病情的控制程度根据下列标准与未处理的对照或用稀释剂喷雾的对照相比用等级来表示:
0=少于50%病状控制
1=约50-80%病状被控制
2=大于80%的病状被控制
这些试验的结果如下表Ⅱ所示。
表Ⅱ
实施例序号 杀真菌活性
BCB AS PHI
4 2 2 2
实施例27
通过下述试验来研究本发明化合物的杀真菌性。
(a)对西红柿晚期枯萎病(Phytophthora infestans;PIP)的直接保护活性。
该试验是对叶簇进行喷洒而直接起保护作用。带两片伸展叶的西红柿植株用受试化合物于含0.04%“Tween 20”(商标;聚氧乙烯山梨醇酯表面活性剂)的1∶1水/丙酮的溶液喷洒。用装有2个空气压力喷嘴的痕量喷雾器来喷洒植物。化合物浓度是600ppm,喷洒体积是750升/公顷。干燥后,将植物放在20℃和40%相对湿度的温室中放24小时。用含有2×105游动孢子/ml的水混悬液来接种植物的上部叶表面,并将接种的植物放在18℃的高湿箱中放24小时,然后在15℃和80%相对湿度的生长室中放5天,根据与对照叶相比的病叶面积百分率来评估病状。
(b)对西红柿早期枯萎病(Alternaria Solani;AS)的活性
该试验是用叶簇喷雾来测量试验化合物的直接预防活性。使西红柿秧(CV.Outdoor Girl)生长至第二真叶伸展开的阶段时,如(a)所述,以600ppm剂量的试验化合物喷洒处理植物。干燥后,将植物放在20℃和40%相对湿度的温室中培养24小时,然后用含有104分生孢子/ml的A.Solani分生孢子混悬液喷洒叶子的上表面,接种后将植物放在21℃中的湿度箱中放置4天。接种后4天根据叶子表面损伤面积的百分率来评价病状。
(d)对阔叶大豆霉病(Botrytis cinerea;BCB)的直接保护活性
该试验是对叶簇喷雾而直接保持的一种。如(a)所述用自动的喷雾管以600ppm剂量对有两对叶片的宽叶大豆植物(轮作The Sutton)喷洒试验化合物。干燥后,将植物放在20℃和40%相对湿度的温度中放24小时。然后用含有1×106分生孢子/ml的水悬浮液接种至叶子的上表面。将该植物放在22℃的高湿度箱内保持4天。根据叶表面受损的百分率来评价病状。
(d)对小麦叶斑(Leptosphaeria nodorum;LN)的活性
该试验是用叶簇喷洒而直接治疗的一种。用含有1.5×106分生孢子/ml的水悬浮液在单叶状态喷洒小麦秧苗(Norman轮作)的叶子进行接种。将接种的植物放在20℃高湿度箱中放置24小时。然后如(a)所述以600ppm的剂量将试验化合物喷洒上去。干燥后,使值物在22℃及70%相对湿度下保持6-8天,接着根据每片叶子上损伤的密度,并与对照植物的叶子相比较来评价。
(e)对水稻叶枯萎病(Pyricularia oryzae;PO)的活性
该试验是用对叶簇喷洒而直接治疗的一种。在用测试化合物处理之前20-24小时,用含105孢子/毫升的水悬浮液喷洒水稻秧苗(轮作Aicliaisli-每罐约30株秧苗)。接种植物在高湿度下保护过夜,干燥后,如(a)所述,采用自动喷雾器喷洒1000ppm剂量的测试化合物。处理后,植株在25-30℃和高湿度下保存于水稻隔离的空间中。在处理之后4-5天进行评价,并根据每片叶子上坏死损伤的密度,与对照植物相比较而得出。
(f)对小麦眼状颜色斑点(Pseudocercosporellaherpotrichoides;PHI)的体外活性
该试验用来测量化合物对引起小麦眼状颜色斑点的真菌的体外活性,将化合物溶解或悬浮在丙酮中,并加入至4ml等分的分装在有25个间隔的培养皿中的半强度的土豆葡萄糖液体培养基中得到最终浓度为10ppm化合物及0.825%丙酮。真菌接种物包括生长在振摇烧瓶中半强度土豆葡萄糖液体培养基中的P.herpotrichoides的菌丝体部分,加入至液体培养基得到5×104菌丝体/ml液体培养基,将培养皿在20℃下培养10天,然后再评价菌丝体的生长。
(g)对丝核菌(Rhizoctonia Solani;RSI)的体外活性
该试验测量了化合物对引起茎和根腐烂的立枯丝核菌(Rhizoctonia Solani)的体外活性。将测试化合物溶于或悬浮于丙酮中,并加入至4ml等分的分装在有25个间隔的培养皿中的半强度的土豆葡萄糖液体培养基,得到终浓度为10ppm化合物及0.825%丙酮。真菌接种物含有生长在摇瓶中的半强度土豆葡萄糖液体培养基中的立枯丝核菌的菌丝体部分,并且将其加入液体培养基得5×104菌丝体/ml液体培养基。将培养皿在20℃下培养10天,然后再评价菌丝体的生长。
(h)对苹果疤(Venturia inaequalis;VII)的体外活性
该试验用来测量化合物对引起苹果疤的Venturia inaequalis的体外活性。将试验化合物溶于或悬浮于丙酮中并加入至4ml等分的分散于25间隔培养皿中的半强度土豆葡萄糖液体培养液,最终得到30ppm化合物及0.825%丙酮,由在麦芽糖琼脂上生长的V.inaequalis的菌丝体和孢子组成的真菌接种物被加至液体培养基中得到5×104繁殖物/ml液体培养基,将培养皿在20℃下培养10天,然后评价菌丝体的生长。
上述试验中病情的控制程度根据下列标准与未处理的对照或稀释喷雾的对照相比用等级来表示,根据以下标准:
0=小于50%病状控制
1=约50-80%病状被控制
2=大于80%的病状被控制
这些试验的结果如下表Ⅲ所示:
表Ⅲ
实施例序号 杀真菌活性
PIP AS BCB LN PO PHI RSI VII
1 2 2 1 2
2 2 2 1 2 1 2
3 2 2 1 1 2 1 2
5 1
6 2 2 2 1 2
7 2 2 2 2
8 1 2 2
9 2 2 2 2
10 2 2 2 2 2
11 2 2 2 2 2
12 2 2 2 1 2
13 2 2 1 2
14 2 2 2 1 2 2 2
15 2 2 1 2 2 2
16 2 2 2 2 2
17 2 2 2 1 2 2
18 2 1 1
19 2 2 1 1 1 2
20 1 1
21 2 2
22 2
实施例序号 杀真菌活性
PIP AS BCB LN PO PHI RSI VII
23 1 1 2 2 2
24 1 1 2 2 2
25 2 2 1 2 2 2
Claims (15)
2、一种如权利要求1所述的化合物,其特征在于,其中,R为C1-6烷基,C2-6链烯基,C2-6链炔基,C3-8环烯基或苯基,或3员至6员杂环,每种基团或环均可被一个或多个选自下述基团的取代基所任意取代:卤原子,硝基,氰基,羟基,C1-4烷基,C1-4卤代烷基,C1-4烷氧基,C1-4卤代烷氧基,氨基,C1-4烷基氨基,双-C1-4烷基氨基,C1-4烷氧羰基和C3-8环烷基。
3、一种如权利要求1或2所述的化合物,其特征在于,R1为卤原子,硝基或氰基,或者C1-6烷基,或C1-6烷氧基,都可被一个或多个选自下列基团的取代基任意取代:卤原子,硝基,氰基,羟基和氨基。
4、一种如权利要求1-3中任一条所述的化合物,其特征在于,R2为氢原子或卤原子。
5、一种如权利要求1-4中任一条所述的化合物,其特征在于,R为甲基,乙基,丙基,丁基,戊基,氯代甲基,氯代乙基,溴代乙基,乙氧基羰基甲基,环戊基乙基,丙烯基,三甲基,环己烯基,二氟苯基,三甲氧基苯基或呋喃基;R1为氯原子或氰基,甲基或甲氧基;和R2为氢或氯原子。
6、一种如权利要求1所述的化合物,其特征在于,其命名如实施例1-25所述。
9、根据权利要求7或8,基本如前述并参照实施例1-3之一的内容得出工艺方法。
10、一种式Ⅰ化合物,它通过权项7-9中任一条所述的方法来制得。
11、一种杀真菌剂组合物,包括一种载体、一种如权利要求1-6及10所定义的式Ⅰ化合物作为活性组份。
12、根据权利要求11所述的组合物,它包括至少两种载体,其中至少一种是表面活性剂。
13、一种抗击真菌的方法,它包括用如权利要求1-6和10所定义的式Ⅰ化合物或用如权利要求11或12所定义的组合物来处理施用的地区。
14、根据权利要求13所述的方法,其中的施用地区包括易被真菌侵袭的植物,这类植物的种子或植物生长于其中或将要生长于其中的介质。
15、如权利要求1-6和10所定义的化合物或如权利要求11或12所定义的组合物的用途,它们被用作杀真菌剂。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP93113190.8 | 1993-08-18 | ||
| EP93113190 | 1993-08-18 |
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| CN94109116A Pending CN1110274A (zh) | 1993-08-18 | 1994-08-18 | 氧化偶氮基氰基苯衍生物 |
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| US (1) | US5439897A (zh) |
| JP (1) | JPH07149707A (zh) |
| KR (1) | KR950005805A (zh) |
| CN (1) | CN1110274A (zh) |
| AT (1) | ATE159934T1 (zh) |
| AU (1) | AU671760B2 (zh) |
| BR (1) | BR9403269A (zh) |
| CA (1) | CA2117502A1 (zh) |
| CZ (1) | CZ189194A3 (zh) |
| DE (1) | DE69406620T2 (zh) |
| HU (1) | HUT68474A (zh) |
| IL (1) | IL110644A0 (zh) |
| RU (1) | RU94029675A (zh) |
| SK (1) | SK95594A3 (zh) |
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| CN108689890A (zh) * | 2018-04-19 | 2018-10-23 | 温州大学 | 一种非对称氧化偶氮苯化合物的合成方法 |
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| AU673877B2 (en) * | 1992-12-02 | 1996-11-28 | Shell Internationale Research Maatschappij B.V. | Azoxycyanobenzene derivatives |
| US5795878A (en) * | 1996-06-17 | 1998-08-18 | American Cyanamid Company | Biocidal compounds their preparation and use |
| DE102004017174A1 (de) * | 2004-04-02 | 2005-10-20 | Biofrontera Discovery Gmbh | Arzneimittel enthaltend Calvatsäurederivate |
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| GB1320618A (en) * | 1970-07-10 | 1973-06-20 | Chinoin Gyogyszer Es Vegyeszet | Benzene diazonium cyanides their preparation and use as fungicides |
| JPS5271444A (en) * | 1975-12-11 | 1977-06-14 | Takara Shuzo Co Ltd | Synthesis of phenyl-onn-azoxycyanides |
| US4550121A (en) * | 1984-08-22 | 1985-10-29 | Shell Oil Company | (2-Substituted-2,3-dihydrobenzo-furan-7-yl)diazenecarboxylic acid esters and miticidal method |
| US4558040A (en) * | 1984-12-03 | 1985-12-10 | Shell Oil Company | Miticidal (2-alkyl-3,4-dihydro-2H-1-benzopyran-8-yl)-diazenecarboxylic acid esters |
| GB8611618D0 (en) * | 1986-05-13 | 1986-06-18 | Shell Int Research | Fungicides |
| US4883137A (en) * | 1986-08-27 | 1989-11-28 | Deere & Company | System and method for controlling the ground speed and enhancing the maneuverability of an off-road vehicle |
| GB8917853D0 (en) * | 1989-08-04 | 1989-09-20 | Shell Int Research | Biocidal compounds |
| GB8917848D0 (en) * | 1989-08-04 | 1989-09-20 | Shell Int Research | Biocidal compounds |
| GB8917852D0 (en) * | 1989-08-04 | 1989-09-20 | Shell Int Research | Biocidal compounds |
| GB9112696D0 (en) * | 1991-06-13 | 1991-07-31 | Shell Int Research | Process for the preparation of biocidal compounds |
| AU673877B2 (en) * | 1992-12-02 | 1996-11-28 | Shell Internationale Research Maatschappij B.V. | Azoxycyanobenzene derivatives |
-
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- 1994-08-01 AT AT94112185T patent/ATE159934T1/de not_active IP Right Cessation
- 1994-08-01 DE DE69406620T patent/DE69406620T2/de not_active Expired - Fee Related
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- 1994-08-16 CA CA002117502A patent/CA2117502A1/en not_active Abandoned
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108689890A (zh) * | 2018-04-19 | 2018-10-23 | 温州大学 | 一种非对称氧化偶氮苯化合物的合成方法 |
| CN108689890B (zh) * | 2018-04-19 | 2020-11-17 | 温州大学 | 一种非对称氧化偶氮苯化合物的合成方法 |
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| CA2117502A1 (en) | 1995-02-19 |
| ZA946221B (en) | 1995-03-31 |
| JPH07149707A (ja) | 1995-06-13 |
| HUT68474A (en) | 1995-06-28 |
| SK95594A3 (en) | 1995-04-12 |
| AU671760B2 (en) | 1996-09-05 |
| RU94029675A (ru) | 1997-03-10 |
| ATE159934T1 (de) | 1997-11-15 |
| CZ189194A3 (en) | 1995-09-13 |
| HU9402378D0 (en) | 1994-11-28 |
| KR950005805A (ko) | 1995-03-20 |
| DE69406620D1 (de) | 1997-12-11 |
| IL110644A0 (en) | 1994-11-11 |
| DE69406620T2 (de) | 1998-03-05 |
| AU7032594A (en) | 1995-04-06 |
| US5439897A (en) | 1995-08-08 |
| BR9403269A (pt) | 1995-10-17 |
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