CN1034933C - 杀虫、杀螨和杀线虫的2-芳基-5-(三氟甲基)吡咯化合物的制备方法 - Google Patents
杀虫、杀螨和杀线虫的2-芳基-5-(三氟甲基)吡咯化合物的制备方法 Download PDFInfo
- Publication number
- CN1034933C CN1034933C CN94118511A CN94118511A CN1034933C CN 1034933 C CN1034933 C CN 1034933C CN 94118511 A CN94118511 A CN 94118511A CN 94118511 A CN94118511 A CN 94118511A CN 1034933 C CN1034933 C CN 1034933C
- Authority
- CN
- China
- Prior art keywords
- trifluoromethyl
- compound
- alkali
- preparation
- compounds
- 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.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/18—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member
- C07D207/20—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having one double bond between ring members or between a ring member and a non-ring member with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C47/00—Compounds having —CHO groups
- C07C47/02—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen
- C07C47/14—Saturated compounds having —CHO groups bound to acyclic carbon atoms or to hydrogen containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
- C07C255/01—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms
- C07C255/10—Carboxylic acid nitriles having cyano groups bound to acyclic carbon atoms containing cyano groups and halogen atoms, or nitro or nitroso groups, bound to the same acyclic carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/65—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/04—Saturated compounds containing keto groups bound to acyclic carbon atoms
- C07C49/16—Saturated compounds containing keto groups bound to acyclic carbon atoms containing halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/34—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D207/00—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D207/02—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom
- C07D207/30—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members
- C07D207/34—Heterocyclic compounds containing five-membered rings not condensed with other rings, with one nitrogen atom as the only ring hetero atom with only hydrogen or carbon atoms directly attached to the ring nitrogen atom having two double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D207/36—Oxygen or sulfur atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Pyrrole Compounds (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Plural Heterocyclic Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
本发明提供了制备可用作为杀虫,杀螨和杀线虫剂的2-芳基-5-(三氟甲基)吡咯化合物的方法。可用于制备上述芳基吡咯化合物的1,1,1-三氟-2-丙烯化合物和它们的制备方法也进行了描述。
Description
本申请是中国专利申请号91104186.9的分案申请。本发明的目的是提供一种制备杀虫、杀线虫和杀螨的2-芳基-5-(三氟甲基)吡咯化合物的更有效的方法,它可减少过量的起始物质,缩短反应时间并增加产品得率。
本发明的另一个目的是提供一种制备本发明的1,1,1-三氟-2丙烯化合物的有效方法。
本发明涉及制备式I的杀虫、杀线虫和杀螨的2-芳基-5-(三氟甲基)吡咯化合物的方法:其中:W是C1-C4烷基,CF3或H;Y是CN,NO2或CO2R;R是C1-C4烷基;L是H,F,Cl或Br;M是H,F,Cl,Br,I,CF3,NO2或OR1;和R1是C1-C3烷基或C2F4H,它包括在极性溶剂和碱存在下,将式II的氮杂内酯化合物:其中L和M如上所述,和式III的α-卤代-α,β-不饱和腈,酯或硝基化合物:其中W和Y如上所述;X是Cl,Br,I或或它的异构体或它的顺、反异构体的混合物之间的一步反应。
本发明提供了高产率地制备杀虫、杀线虫和杀螨的式I的化合物的方法:其中:W是C1-C4烷基,CF3或H;Y是CN,NO2CO2R;R是C1-C4烷基;L是H,F,Cl或Br;M是H,F,Cl,Br,I,CF3,NO2或OR1;和R1是C1-C3烷基或C2F4H,它包括在极性溶剂和碱存在下,在式II的氮杂内酯化合物:其中L和M如上所述,和式III的α-卤代-α,β-不饱和腈,酯或硝基化合物;其中W和Y如上所述;X是Cl,Br,I或或它的异构体或它的顺、反异构体的混合物之间的有效的一步反应。较佳为该方法包括将如上所述的式II的氮杂内酯与至少约1个摩尔当量,较佳为1-5个摩尔当量的如上所述的式III的α-卤代-α,β-不饱和腈,酯或硝基化合物和至少约1个等摩尔数,较佳为约1-5个摩尔当量的碱,在极性溶剂存在下,较佳是在约20℃-180℃的温度范围内进行反应以形成式I的α-芳基-5-(三氟甲基)吡咯化合物,当然,采用尽可能少过量的反应剂是尤其佳的,特别有利的是在本发明中可采用化学计量的量,而仍保持好的产率。
式I的化合物产物可通过常规的技术,例如用水稀释反应混合物,并过滤式I的产物或用合适的溶剂萃取所说的产物而加以分离,在分离过程中,可采用任何合适的萃取溶剂,包括水不溶性溶剂,例如乙醚,乙酸乙酯,二氯甲烷等。
适合用于本发明的方法中的碱包括例如碱金属碳酸盐,C1-C4三烷基胺,碱金属氢氧化物和吡啶等碱,较佳的碱是吡啶,三乙胺和碳酸钠。
适合用于上述方法中的反应溶剂包括任一种极性溶剂,例如乙腈,二甲基亚砜,二甲基甲酰胺,乙醇,甲醇和异丙醇溶剂。乙腈和二甲基甲酰胺是较佳的反应溶剂。
如下将描述一些式III的起始化合物。
本发明的较佳的1,1,1-三氟-2-丙烯化合物是,其中X是Cl或Br;Z是CN或C(O)R1;和R1是C1-C4烷基的那些。
式IIIa的化合物可以通过在溶剂中将三氟乙醛与(三苯基膦酰亚苯胺基)乙腈反应而给出4,4,4-三氟丁烯腈而制得。将所说的4,4,4-三氟丁烯腈和具有结构式IV:其中:Z是CN,CO2R,C(O)R1;R和R1是C1-C4烷基的其它化合物和它们的顺和反异构体与至少约2个等摩尔数,较佳为约2-5个等摩尔数的卤化剂在溶剂存在下反应而形成式V的2,3-二卤代-1,1,1-三氟丙烷化合物:
F3CCHXCHXZ
(V)其中:X是Cl,Br或I;Z如上所述,可采用的卤化剂包括溴,氯,碘等,适合用于上述反应中的反应溶剂包括四氢呋喃,氯化碳等,然后,将所得到的2,3-二卤代-1,1,1-三氟丙烷与至少约1个等摩尔数,较佳为约1-3个等摩尔数的碱在溶剂存在下进行反应以形成式I的1,1,1-三氟-2-丙烯化合物,适合用于反应中的碱包括三乙胺,吡啶和碳酸钠等溶剂,如乙醚和四氢呋喃可较好地被采用。该反应简图说明如下:除了R是氢的情况,式IIIa的化合物的制备在前述反应简图中已经作了说明。为了制备其中R是氢的式IIIa的化合物,可能需要附加水解步骤。当R不是氢时,式IIIa的化合物的水解会产生具有相同结构的,但除了R成为氢的另一种式IIIa的化合物。
为了促使人们进一步了解本发明,如下实例被提供以更特别详细地说明本发明,但本发明并不局限于此,除了权利要求书中所限定的。
实例1在碱存在下制备2-苯基-5-(三氟甲基)吡咯-3-腈
将三乙胺(4.5g,0.044mol)逐滴加入至4-苯基-2-(三氟甲基)-5(2H)-噁唑酮(10.0g,0.043mol),2-氯丙烯腈(3.51g,0.43mol)和乙腈(50mL)的混合物中,使反应混合物的温度升至65℃,在滴加过程中有二氧化碳逸出。滴加完成后,将反应混合物在回流温度下加热1小时,冷却至室温并倾倒入水(150ml)中,过滤收集固体,风干并在真空和60℃下干燥,给出呈白色固体的标题化合物(10.05g,97%)。通过NMR光谱分析进行鉴定。
采用化学计 量的反应剂并缩短反应时间的情况下,上述过程可提供几乎等量的吡咯产物。
实例2不加碱制备2-苯基-5-(三氟甲基)吡咯-3-腈
将4-苯基-2-(三氟甲基)-5(2H)-噁唑酮(13.5g,0.059mol),2-氯丙烯腈(26ml,0.295mol)和乙腈(250ml)在回流温度下加热52小时,然后将反应混合物冷却至室温并真空浓缩而给出固体,将固体在甲苯中重结晶而给出呈黄色固体的标题产物(10.1g,73%)。通过NMR光谱分析进行鉴定。
尽管采用了大大过量的2-氯丙烯腈和长的反应时间,但不加入碱的方法仅获得73%产率的标题产物。
实例32-(对一氯苯基)-5-(三氟甲基)吡咯-3-羧酸甲酯的制备
将三乙胺(5.58g,0.055mol)逐滴加入至4-(对氯苯基)-2-(三氟甲基)-5(2H)-噁唑酮(15.6g,0.054mol),α-氯丙烯酸甲酯(6.52g,0.054mol)和乙腈(50ml)的混合物中,在滴加过程中,反应混合物加热至55℃,滴加完成后,在回流温度下加热反应混合物1小时,冷却至室温并过滤,将滤液倾倒至乙醚/水混合物中并用乙醚萃取,通过无水硫酸镁干燥合并的有机萃取物并真空浓缩而给出黑色残余物,在己烷中重结晶残余物而给出呈橙色固体的标题化合物(8.25g,50.2%)。通过NMR光谱分析进行鉴定。
实例4用非极性溶剂代替极性溶剂的制备
将α-氯丙烯腈(3.85g,0.044mol)加入至0℃的4-苯基-2-(三氟甲基)-5(2H)-噁唑酮(10.0g,0.044mol)和甲苯(50ml)的混合物中,将三乙胺(4.49g,0.044mol)逐滴加入反应混合物中并将温度上升至25℃,当滴加完成后,往反应混合物中加入水,并分离各层。通过无水硫酸镁干燥有机层并真空浓缩而给出呈琥珀色液体的α-氯-5-氧-4-苯基-2-(三氟甲基)-3-噁唑啉-2-丙腈(8.37g,60%)。通过NMR光谱分析进行鉴定。
实例5该实例展示了往在实例4中所形成的产物中加入碱和极性溶剂(例如乙腈),形成了所需要的吡咯。
将三乙胺(0.077g,0.76mmol)逐滴加入到α-氯-5-氧-4-苯基-2-(三氟甲基)-3-噁唑啉-2-丙腈(0.24g,0.76mmol)和乙腈(25ml)的回流混合物中。将反应混合物回流2小时,冷却至室温并倾倒入水中,过滤收集固体并干燥而给出呈白色固体的标题化合物(0.10g,88%)。通过NMR光谱分析进行鉴定。
实例6
溶剂和碱对于2-芳基-5-(三氟甲基)吡咯形成的影响
表I显示了溶剂和碱的改变对于从4-苯基-2-(三氟甲基)-5(2H)-噁唑酮和2-氯丙烯腈合成2-苯基-5-(三氟甲基)吡咯-3-腈的影响,所示百分数代表在回流1/2小时后对反应混合物进行HPLC分析而确定的面积百分数。
表I溶剂和碱的影响产率%溶剂 碱 (芳基吡咯)甲苯 三乙胺 11甲苯 吡啶 8四氢呋喃 三乙胺 39乙醇 三乙胺 80乙腈 三乙胺 96乙腈 - 4*二甲基甲酰胺 吡啶 100二甲基甲酰胺 碳酸钠 74二甲基甲酰胺 三乙胺 100*1小时回流实例7
在2-芳基-5-(三氟甲基)吡咯形成中碱的影响
碱对于2-芳基-5-(三氟甲基)吡咯合成的影响示于表II中,乙腈是在所有的反应中的溶剂。
表 IIW L Y X 三乙胺的当量 时间 产率%H 4-Cl CN Cl 0 78a 79H 4-Cl CN Cl 1 1/2a 96CF3 H CO2C2H6Br 0 24a 2CF3 H CO2C2H5Br 1 2b 20
H 4-Cl CO2CH3 Cl 41/2a 27
H 4-Cl CO2CH3 Cl 1a 50
a.反应混合物的回流的时间(小时)
b.反应混合物在室温下搅拌的时间(小时)
实例8在2-芳基-5-(三氟甲基)吡咯形成中溶剂的影响
在由4-(对氯苯基)-2-(三氟甲基)-5(2H)-噁唑酮和2-氯丙烯腈形成2-(对氯苯基-5-(三氟甲基)吡咯-3-腈中溶剂的影响示于表III中。
表III
在2-芳基-5-(三氟甲基)吡咯形成中溶剂的影响溶剂 2-氯丙烯腈的当量 时间a 产率%硝基甲烷 10 21 14甲苯 10 17 17三氟乙酸酐 10 17 17乙腈 10 17 46a.反应混合物回流的时间(小时)
这些实验的结果表明,在不加入碱的情况下,即使采用极性溶剂和长的时间,产率通常是不佳的。
实例94,4,4-三氟丁烯腈(E)-和(Z)-的制备
将通过往被加热至150-180℃的聚磷酸(300ml)中加入1-乙氧基-2,2,2-三氟乙醇(77.6g,0.48mol)而制得的三氟乙醛(47.4g,0.48mol)用氮气吹入到含(三苯基膦酰亚苯胺基)乙腈(97.3g,0.32mol)的乙醚(400ml)的料浆中,历时2小时。将反应混合物在氮气下搅拌过夜,过滤掉固体氧化三苯基膦后,蒸去乙醚而得到橙色溶液,球管对球管蒸馏溶液,得到呈澄清无色油的2个馏分的标题化合物(14.3g,37%)。馏分1(沸点20-40℃,14mm)含有(E):(Z)为6∶1的混合物。馏分2(沸点40-50℃,14mm)含有(Z),(E)为2∶1的混合物,通过NMR分析鉴定馏分。
(E)和(Z)
在5分钟内将溴(4.75g,0.029mol)加入到4,4,4-三氟丁烯腈(3.46g,0.029mol)和四氯化碳(70ml)的溶液中,将所得到的暗红色溶液回流5小时,然后加入水(70ml)以使反应终止,分离出有机层,相继用水,5%硫代硫酸钠和水洗涤,通过无水硫酸镁干燥,过滤并真空浓缩而得到呈黄色油状的标题产物(6.1g,76%),通过NMR光谱分析进行鉴定。
将三乙胺(3.7g,0.037mol)逐滴加入至2,3-二溴-4,4,4-三氟丁腈(5.32g,0.023mol)和四氢呋喃(100ml)的溶液中。在滴加过程中形成大量白色沉淀连续搅拌1小时,然后过滤出固体并用四氢呋喃洗涤,馏出四氢呋喃而得到暗褐色油,球管对球管蒸馏(15mm,24℃)该油而获得呈澄清无色液体的标题产物(3.1g,82%),NMR光谱分析鉴定为E∶Z为6∶1的混合物。
实例122-(对氯苯基)-4,5-双(三氟甲基)吡咯-3-腈的制备
将4-(对氯苯基)-2-(三氟甲基)-2-噁唑啉-5-酮(2.0g,7.59mmol)和2-溴-4,4,4-三氟丁烯腈(0.81g,4.05mmol)溶解于乙腈(10ml)中。往所得到的黄色溶液中逐滴加入三乙胺(0.45g,4.46mmol),同时,水浴冷却反应烧瓶。在25℃下搅拌过夜后,将反应混合物倾倒入水中,用乙酸乙酯萃取含水相,并相继用水,5%硫代硫酸钠溶液和盐水洗涤合并的有机萃取物,通过无水硫酸镁干燥并真空浓缩而给出黄色固体,将该固体进行硅胶色谱层析并用己烷/乙酸乙酯(3∶1)洗脱而获得呈黄色晶体的标题化合物(1.26g,熔点208℃)。
按实例12的过程,但用3-溴-5,5,5-三氟-3-戊-2-酮代替2-溴-4,4,4-三氟丁烯腈而获得呈黄色结晶状的2-(对氯苯基)-4,5-双(三氟甲基)吡咯-3-基甲基酮。
实例132-(对氯苯基)-4,5-双(三氟甲基)吡咯-3-羧酸乙酯的制备
将三乙胺(1.1g,0.011mol)逐滴加入到4-(对氯苯基)-2-(三氟甲基)-2-噁唑啉-5-酮(2,64g,0.01mol)和乙腈(25ml)的溶液中,在室温下搅拌10分钟后,往反应混合物中逐滴加入2-溴-4,4,4-三氟巴豆酸乙酯(2.47g,0.01mol)和乙腈(1ml)的溶液,反应混合物在室温下搅拌2小时,然后,将其倾倒入水中并用乙酸乙酯萃取,相继用水和盐水洗涤合并的有机萃取物,通过无水硫酸镁干燥并真空浓缩而给出橙色油,将其静置固化,用己烷研细而给出呈黄色固体的标题产物(2.36g,61.3%,熔点138-140℃)。
将三乙胺(0.59g,5.83mmol)逐滴加入到2,3-二溴-4,4,4-三氟丁腈(1.63g,10.2mmol)和四氢呋喃(20ml)的溶液中,连续搅拌15分钟,然后往反应混合物中逐滴加入4-(3,4-二氯苯基)-2-(三氟甲基)-2-噁唑啉-5-酮(2.6g,8.72mmol),三乙胺(0.88g,8.7mmol)和乙腈(5ml)的溶液,将反应混合物在室温下搅拌过夜,倾倒入水中并用乙酸乙酯萃取,相继用水和盐水洗涤混合的有机萃取物,通过无水硫酸镁干燥开真空浓缩而给出褐色油,采用硅胶对该油进行色谱层析,并用己烷/乙酸乙酯(3∶1)洗脱而得到呈淡黄色固体的标题产物(1.49g,67%,熔点205-208℃)。
Claims (5)
2.如权利要求1所述的方法,其特征在于碱是碱金属碳酸盐,C1-C4三烷基胺或吡啶,极性溶剂是乙腈,二甲基甲酰胺,二甲基亚砜,乙醇,甲醇或异丙醇。
3.如权利要求2所述的方法,其特征在于所述碱是三乙胺。
4.如权利要求2所述的方法,其特征在于所述极性溶剂是乙腈。
5.如权利要求2所述的方法,其特征在于反应混合物的温度是20℃-180℃。
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/560,396 | 1990-07-31 | ||
US07/560,403 | 1990-07-31 | ||
US07/560,403 US5068390A (en) | 1990-07-31 | 1990-07-31 | 1,1,1-trifluoro-2-propene compounds |
US07/560,396 US5030735A (en) | 1990-07-31 | 1990-07-31 | Process for the preparation of insecticidal, acaricidal and nematicidal 2-aryl-5-(trifluoromethyl) pyrrole compounds |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN91104186A Division CN1030699C (zh) | 1990-07-31 | 1991-06-18 | 一种三氟丙烯化合物的制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1119184A CN1119184A (zh) | 1996-03-27 |
CN1034933C true CN1034933C (zh) | 1997-05-21 |
Family
ID=27072316
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN91104186A Expired - Fee Related CN1030699C (zh) | 1990-07-31 | 1991-06-18 | 一种三氟丙烯化合物的制备方法 |
CN94118511A Expired - Fee Related CN1034933C (zh) | 1990-07-31 | 1994-11-25 | 杀虫、杀螨和杀线虫的2-芳基-5-(三氟甲基)吡咯化合物的制备方法 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN91104186A Expired - Fee Related CN1030699C (zh) | 1990-07-31 | 1991-06-18 | 一种三氟丙烯化合物的制备方法 |
Country Status (19)
Country | Link |
---|---|
EP (1) | EP0469262B1 (zh) |
JP (1) | JP3101012B2 (zh) |
KR (1) | KR100188325B1 (zh) |
CN (2) | CN1030699C (zh) |
AT (1) | ATE118766T1 (zh) |
AU (1) | AU646480B2 (zh) |
BR (1) | BR9103255A (zh) |
CA (1) | CA2048042A1 (zh) |
CZ (1) | CZ285271B6 (zh) |
DE (1) | DE69107546T2 (zh) |
DK (1) | DK0469262T3 (zh) |
ES (1) | ES2068425T3 (zh) |
FI (1) | FI102532B1 (zh) |
GR (1) | GR3015204T3 (zh) |
HU (1) | HU209916B (zh) |
IE (1) | IE67178B1 (zh) |
IL (1) | IL98235A (zh) |
PT (1) | PT98477B (zh) |
SK (2) | SK280893B6 (zh) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5128485A (en) * | 1990-12-17 | 1992-07-07 | American Cyanamid Company | Synthesis of 2-aryl-5-(trifluoromethyl)pyrroles useful as pesticidal agents and as intermediates for the preparation of said agents |
EP2396435B1 (en) * | 2009-02-13 | 2019-10-30 | California Institute of Technology | Amorphous platinum-rich alloys |
CN102584667B (zh) * | 2011-12-21 | 2013-12-18 | 湖南化工研究院 | 具生物活性的芳基吡咯类化合物及其制备方法 |
MX2019010998A (es) * | 2017-03-13 | 2019-10-17 | Basf Agro Bv | Produccion de compuestos de arilpirrol en presencia de una base de dipea. |
CN112608268A (zh) * | 2020-12-22 | 2021-04-06 | 李通 | 一种溶剂dmf替代乙腈生产溴虫腈中间体吡咯的方法 |
CN116987044B (zh) * | 2023-09-28 | 2024-01-26 | 山东亿嘉农化有限公司 | 一种4-(对氯苯基)-2-三氟甲基-3-恶唑-5-酮的合成工艺 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85106411A (zh) * | 1985-04-23 | 1986-10-22 | 鲁塞尔-于克拉夫公司 | 制备新的吡咯衍生物的方法 |
CN1039807A (zh) * | 1987-07-29 | 1990-02-21 | 美国氰胺公司 | 杀虫、杀螨、杀线虫剂芳基吡咯及其制备方法 |
CN1043317A (zh) * | 1988-12-05 | 1990-06-27 | 美国氰胺公司 | 吡咯腈及硝基吡咯杀虫剂、杀螨剂和杀软体动物剂及其制备方法 |
CN1043500A (zh) * | 1988-12-09 | 1990-07-04 | 罗纳-普朗克农业化学公司 | 吡咯类杀虫剂 |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5010098A (en) * | 1987-07-29 | 1991-04-23 | American Cyanamid Company | Arylpyrrole insecticidal acaricidal and nematicidal agents and methods for the preparation thereof |
IL87222A (en) * | 1987-07-29 | 1993-04-04 | American Cyanamid Co | Arylpyrroles, methods for thepreparation thereof andinsecticidal, acaricidal andnematicidal compositionscontaining them |
US4929634A (en) * | 1987-10-23 | 1990-05-29 | American Cyanamid Company | Method of and bait compositions for controlling mollusks |
EP0358047A3 (en) * | 1988-09-08 | 1991-05-29 | American Cyanamid Company | Method of controlling phytopathogenic fungi |
ES2087099T3 (es) * | 1989-08-11 | 1996-07-16 | American Cyanamid Co | Agentes arilpirrolicos insecticidas, acaricidas y nematicidas y procedimientos. |
US5157047A (en) * | 1990-10-18 | 1992-10-20 | American Cyanamid Company | Bis- and tris(trifluoromethyl)arylpyrrole insecticidal and acaricidal agents |
-
1991
- 1991-05-23 IL IL9823591A patent/IL98235A/en not_active IP Right Cessation
- 1991-05-25 AT AT91108535T patent/ATE118766T1/de not_active IP Right Cessation
- 1991-05-25 DE DE69107546T patent/DE69107546T2/de not_active Expired - Lifetime
- 1991-05-25 ES ES91108535T patent/ES2068425T3/es not_active Expired - Lifetime
- 1991-05-25 DK DK91108535.5T patent/DK0469262T3/da active
- 1991-05-25 EP EP91108535A patent/EP0469262B1/en not_active Expired - Lifetime
- 1991-06-18 CN CN91104186A patent/CN1030699C/zh not_active Expired - Fee Related
- 1991-07-25 JP JP03208511A patent/JP3101012B2/ja not_active Expired - Lifetime
- 1991-07-29 CA CA002048042A patent/CA2048042A1/en not_active Abandoned
- 1991-07-29 PT PT98477A patent/PT98477B/pt not_active IP Right Cessation
- 1991-07-30 CZ CS912377A patent/CZ285271B6/cs not_active IP Right Cessation
- 1991-07-30 HU HU912540A patent/HU209916B/hu not_active IP Right Cessation
- 1991-07-30 AU AU81510/91A patent/AU646480B2/en not_active Ceased
- 1991-07-30 KR KR1019910013135A patent/KR100188325B1/ko not_active IP Right Cessation
- 1991-07-30 BR BR919103255A patent/BR9103255A/pt not_active IP Right Cessation
- 1991-07-30 IE IE267491A patent/IE67178B1/en not_active IP Right Cessation
- 1991-07-30 FI FI913638A patent/FI102532B1/fi active
- 1991-07-30 SK SK2377-91A patent/SK280893B6/sk unknown
- 1991-07-30 SK SK846-98A patent/SK280894B6/sk unknown
-
1994
- 1994-11-25 CN CN94118511A patent/CN1034933C/zh not_active Expired - Fee Related
-
1995
- 1995-02-28 GR GR940402778T patent/GR3015204T3/el unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN85106411A (zh) * | 1985-04-23 | 1986-10-22 | 鲁塞尔-于克拉夫公司 | 制备新的吡咯衍生物的方法 |
CN1039807A (zh) * | 1987-07-29 | 1990-02-21 | 美国氰胺公司 | 杀虫、杀螨、杀线虫剂芳基吡咯及其制备方法 |
CN1043317A (zh) * | 1988-12-05 | 1990-06-27 | 美国氰胺公司 | 吡咯腈及硝基吡咯杀虫剂、杀螨剂和杀软体动物剂及其制备方法 |
CN1043500A (zh) * | 1988-12-09 | 1990-07-04 | 罗纳-普朗克农业化学公司 | 吡咯类杀虫剂 |
Also Published As
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1858903B1 (de) | Diarylphenoxy-aluminium-verbindungen | |
US6472345B2 (en) | Catalytic halogenation of activated methylene and methine compounds | |
CN1034933C (zh) | 杀虫、杀螨和杀线虫的2-芳基-5-(三氟甲基)吡咯化合物的制备方法 | |
US8153826B2 (en) | Process for production of (±)-3a,6,6,9a-Tetramethyldecahydronaphtho[2,1-b]Furan-2(1H)-one | |
DE2837525A1 (de) | Verfahren zur herstellung von 4- fluoro-3-phenoxy-toluol | |
CN116947695A (zh) | 一种1,3,6-己烷三腈的制备方法和应用 | |
EP0124002B1 (de) | Verfahren zur Herstellung von aromatischen Verbindungen, die über ein Heteroatom gebundene perfluorierte Seitenketten enthalten | |
US5068390A (en) | 1,1,1-trifluoro-2-propene compounds | |
DE10111262A1 (de) | Verfahren zur Herstellung von Vinyl- Aryl- und Heteroarylessigsäuren und ihrer Devivate | |
DE69604327T2 (de) | Herstellung von polyalkylierten Cyclopentadienen aus Isobornylcarboxylaten | |
DE2621830A1 (de) | Verfahren zur herstellung von cyclopropanderivaten | |
EP0197274A1 (de) | Verfahren zur Herstellung von substituierten Styrolen | |
EP0391212B1 (de) | Verfahren zur Herstellung von bifunktionellen Z-Stilbenverbindungen, neue bifunktionelle Z-Stilbenverbindungen sowie die Verwendung der Z-Stilbenverbindungen zur Herstellung von Polymeren | |
CN1800140A (zh) | 制备对映体富集的2-氟羧酸酯的方法 | |
US4558148A (en) | Fluorinated allylic compounds and a process for preparing these compounds | |
DE2933996C2 (zh) | ||
DE10123909A1 (de) | Verfahren zur Herstellung von Ketonen aus Carbonsäureanhydriden | |
DE10004717A1 (de) | V.z.H.v.3,5-Bis-(trifluormethyl)-benzoylchloriden u.neue 3,5-Dimethyl-benzoylchloride u.3,5-Bis-(trichlormethyl)-benzoylchloride | |
US5138087A (en) | 1,1,1-trifluoro-2-propene compounds and a method for their preparation | |
DE3008158A1 (de) | Verfahren zur herstellung von 3-brom-4-fluortoluol | |
Coe et al. | Reactions of tetrafluoroethene oligomers. Part XIII. Reactions of a perfluorinated dihydrofuran; perfluoro-4-ethyl-2, 3, 4, 5-tetramethyl-4, 5-dihydrofuran | |
DE2759622C2 (de) | Acetylsubstituierte Cyclohexene und Verfahren zu deren Herstellung | |
KR101081115B1 (ko) | 베타카로텐의 제조방법 | |
CN116332882A (zh) | 一种恩格列净关键中间体的合成工艺 | |
EP0325126A1 (de) | Fluor enthaltende 1-Arylalkoxytris(dialkylamino)-phosphonium-salze, Verfahren zu deren Herstellung und ihre Verwendung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |