WO2015106443A1 - 联苯化合物的制备及应用 - Google Patents

联苯化合物的制备及应用 Download PDF

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WO2015106443A1
WO2015106443A1 PCT/CN2014/070822 CN2014070822W WO2015106443A1 WO 2015106443 A1 WO2015106443 A1 WO 2015106443A1 CN 2014070822 W CN2014070822 W CN 2014070822W WO 2015106443 A1 WO2015106443 A1 WO 2015106443A1
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compound
biphenyl
aminobiphenyl
alkyl
hydrogen
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PCT/CN2014/070822
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English (en)
French (fr)
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邵玉田
熊杰
覃小龙
章金龙
蔡国平
陈邦池
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迈克斯(如东)化工有限公司
浙江省诸暨合力化学对外贸易有限公司
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Priority to CN201480073055.3A priority Critical patent/CN106103404B/zh
Priority to PCT/CN2014/070822 priority patent/WO2015106443A1/zh
Publication of WO2015106443A1 publication Critical patent/WO2015106443A1/zh

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    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/07Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms
    • C07C205/11Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by halogen atoms having nitro groups bound to carbon atoms of six-membered aromatic rings
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C209/00Preparation of compounds containing amino groups bound to a carbon skeleton
    • C07C209/30Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds
    • C07C209/32Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups
    • C07C209/36Preparation of compounds containing amino groups bound to a carbon skeleton by reduction of nitrogen-to-oxygen or nitrogen-to-nitrogen bonds by reduction of nitro groups by reduction of nitro groups bound to carbon atoms of six-membered aromatic rings in presence of hydrogen-containing gases and a catalyst

Definitions

  • the present invention relates to a process for the preparation and use of organic compounds, and more particularly to the preparation and use of biphenyl compounds. Background technique
  • Biphenyl compounds such as B 0SC alid, Fluxapyroxad and Bi Xa fen are important new amide fungicides.
  • 2-Nitrobiphenyl compounds, 2-aminobiphenyl compounds and the like are key intermediates for the preparation of such novel amide fungicides.
  • the preparation process of biphenyl compounds is deeply concerned by the majority of pesticide developers.
  • WO2013132006 discloses a process for preparing a 2-aminobiphenyl compound using a halogenated benzoquinone or a substituted aniline as a raw material and a metal oxide such as manganese dioxide or potassium permanganate as an oxidizing agent. This method uses highly toxic aromatic amines as the main raw material while producing a large amount of manganese-containing solid waste. The yield was 32 to 62%.
  • WO2010094736 discloses a process for the preparation of aminobiphenyl by coupling a mixed organometallic reagent with bromoaniline. The method is to prepare a solution of 3,4,5-trifluorophenylmagnesium bromide in tetrahydrofuran under nitrogen protection and anhydrous conditions; 3,4,5-trifluorophenyl bromide at 25 ° C
  • the magnesium tetrahydrofuran solution was dropped into the zinc chloride toluene solution; after stirring for 20 minutes, N-methylpyrrolidone was added to the reaction system; after 5 minutes, a small amount of tri-tert-butylphosphine tetrafluoroborate was added to the reaction system.
  • WO20060002421 discloses a process for preparing a biphenyl compound by a Suzuki coupling reaction.
  • the method uses a halogenated aromatic amine (or halogenated nitrobenzene) or an arylboronic acid as a raw material, and uses a compound of a noble metal palladium such as palladium acetate or triphenylphosphine palladium as a catalyst, and potassium carbonate is used as a base under nitrogen protection conditions.
  • biphenyl compounds having different structures can be prepared by the above methods, these reported methods have special requirements on the structure of the raw materials, especially aromatic amines, which are not only highly toxic but also require the substituent to be attached to the ortho position of the amino group, resulting in Problems such as insufficient raw materials or difficulties in source.
  • special reagents such as metal oxidants, organic metals, and organic boron in the above process not only increases the process cost and waste amount, but also requires special equipment and harsh reaction conditions such as anhydrous and oxygen-free.
  • WO2010102980 discloses a process for preparing a biphenyl compound starting from 1,3-butadiene and 2-nitro-arylethene. The method synthesizes the intermediate nitroarylcyclohexene by Diels-Alder reaction, and then prepares the 2-nitrobiphenyl compound by dehalogenation and aromatization in the presence of a halogen or a base. The obtained 2-nitrobiphenyl compound is further reduced to obtain a 2-aminobiphenyl compound.
  • the process avoids the use of reagents such as metal oxidants, organometallics, and organic boron, it requires at least three steps in the process to prepare biphenyl compounds, and must be prepared by using reagents such as liquid bromine and N-chlorosuccinimide.
  • Aromatization can be achieved by eliminating the two-step dehalogenation reaction under the action of a base such as potassium t-butoxide. This not only increases the complexity of the process route, but also increases the process cost.
  • the present invention discloses a simple and novel method for the preparation and application of biphenyl compounds.
  • This method uses 2-nitroarylethene (I) as a starting material with a specific amino-substituted 1,3-butadiene (II).
  • the present inventors have surprisingly found that the reaction can give a 2-aminobiphenyl compound (111), a 2-nitrobiphenyl compound (IV) or a mixture of the two at a certain temperature and in the presence or absence of a catalyst.
  • the product composition can be controlled by adjusting the reaction conditions, for example, the low temperature is favorable for the production of the 2-nitrobiphenyl compound (IV), and the high temperature is favorable for the formation of the 2-aminobiphenyl compound (III).
  • a mixture of the 2-aminobiphenyl compound (III) and the 2-nitrobiphenyl compound (IV) obtained in the present invention can be obtained by a conventional reduction method to obtain a single 2-aminobiphenyl compound (III). product.
  • the 2-nitroarylethylene (I) is mixed with the substituted 1,3-butadiene (II), and the reaction is directly carried out in a solvent with or without a catalyst to obtain a 2-aminobiphenyl compound (111), 2- a nitrobiphenyl compound (IV) or a mixture of the two;
  • Is selected from hydrogen, cyano, hydroxy, halo, Ci ⁇ C 6 alkyl, Ci ⁇ C 6 alkoxy, Ci ⁇ C 6 alkylthio group, aryl group, and may be a multiple-substituted same or different from each other;
  • R 2 Selected from hydrogen, cyano, halogen, Ci ⁇ C 6 alkyl, C ⁇ Cs alkoxy, C ⁇ Cs alkylthio, aryl;
  • X is selected from C, 0, S or R 3 -N;
  • p is selected from 1, 2, 3, 4 or 5;
  • R 3 is hydrogen, C ⁇ alkyl or C 6 to C 12 aryl.
  • the catalyst is Pd, Pt or Ni.
  • the molar ratio of the 2-nitroarylethylene (I) to the substituted 1,3-butadiene (II) is from 2:1 to 1:5.
  • the solvent is toluene, xylene, chlorobenzene, acetonitrile, dichloromethane, water or a mixture thereof, and the solvent used has a mass of 1 to 20 times the mass of 2-nitroarylethylene (I).
  • the reaction is carried out at 60 to 160 ° C and 0.2 to 4.0 MPa.
  • biphenyl compound prepared by a method for producing a biphenyl compound is for producing a 2-aminobiphenyl compound (III) or an amide compound (VI).
  • the 2-aminobiphenyl compound (III) is prepared by mixing a mixture of a 2-nitrobiphenyl compound (IV) or a 2-nitrobiphenyl compound (IV) with a 2-aminobiphenyl compound (III). In the organic solvent, the catalyst is catalytically reduced to obtain the 2-aminobiphenyl compound (III);
  • Is selected from hydrogen, cyano, hydroxy, halo, Ci ⁇ C 6 alkyl, Ci ⁇ C 6 alkoxy, Ci ⁇ C 6 alkylthio group, aryl group, and may be a multiple-substituted same or different from each other;
  • R 2 Selected from hydrogen, cyano, halogen, Ci ⁇ C6 alkyl, CH ⁇ alkoxy, C ⁇ Cs alkylthio, aryl;
  • p is selected from 1, 2, 3, 4 or 5.
  • the organic solvent is toluene, xylene, chlorobenzene, methanol, ethanol, water or a mixture thereof, and the mass of the solvent is 1 to 20 times the mass of the raw material, and the catalyst is Pd, Pt or Ni.
  • the amide compound (VI) is obtained by reacting a 2-aminobiphenyl compound (III) with an acid chloride (V);
  • R 2 Selected from hydrogen, cyano, halogen, Ci ⁇ C 6 alkyl, Ci ⁇ C 6 alkoxy, Ci ⁇ C 6 alkylthio, aryl;
  • R4 is Ci ⁇ C 12 alkyl, aryl or heterocyclic Base;
  • p is selected from 1, 2, 3, 4 or 5.
  • the amide compound (VI) is 2-chloro-N-(biphenyl-2-yl)nicotinamide, 3-(difluoromethyl)-1-methyl-indole-(3',4',5 '-Trifluorobiphenyl-2-yl) B-pyrazole-4-carboxamide or N-(3',4'-dichloro-5-fluoro[1,1'-biphenyl]-2-yl) - 3-Difluoromethyl small methyl-1 ⁇ -pyrazole-4-carboxamide.
  • a simple and novel method for preparing a biphenyl compound is provided: a biphenyl compound which is aromatized in one step is obtained by using a readily available raw material as a substrate, and in particular, an aromatized aminobiphenyl compound can be obtained in one step.
  • the method does not require special coupling reagents, and does not require a complicated aromatization process, and the post-reaction treatment is simple.
  • the aminobiphenyl compound obtained by the process of the present invention can be further coupled with an acid chloride compound to prepare an amide compound.
  • the whole process steps are small and the conditions are mild, which is beneficial to industrial production.
  • the biphenyl compound is prepared by mixing 2-nitroarylethylene (I) with substituted 1,3-butadiene (II). In the solvent with or without a catalyst, the reaction directly gives a 2-aminobiphenyl compound (111), a 2-nitrobiphenyl compound (IV) or a mixture of the two;
  • Is selected from hydrogen, cyano, hydroxy, halo, Ci ⁇ C 6 alkyl, Ci ⁇ C 6 alkoxy, Ci ⁇ C 6 alkylthio group, aryl group, and may be a multiple-substituted same or different from each other;
  • R 2 Selected from hydrogen, cyano, halogen, Ci ⁇ C 6 alkyl, C ⁇ Cs alkoxy, C ⁇ Cs alkylthio, aryl;
  • X is selected from C, 0, S or R 3 -N;
  • p is selected from 1, 2, 3, 4 or 5;
  • R 3 is hydrogen, C ⁇ alkyl or C 6 to C 12 aryl.
  • the catalyst is Pd, Pt or Ni.
  • the molar ratio of the 2-nitroarylethylene (I) to the substituted 1,3-butadiene (II) is from 2:1 to 1:5.
  • the solvent is toluene, xylene, chlorobenzene, acetonitrile, dichloromethane, water or a mixture thereof, and the solvent used has a mass of 1 to 20 times the mass of 2-nitroarylethylene (I).
  • the reaction is carried out at 60 to 160 ° C and 0.2 to 4.0 MPa.
  • biphenyl compound prepared by a method for producing a biphenyl compound is for producing a 2-aminobiphenyl compound (III) or an amide compound (VI).
  • the 2-aminobiphenyl compound (III) is prepared by mixing a mixture of a 2-nitrobiphenyl compound (IV) or a 2-nitrobiphenyl compound (IV) with a 2-aminobiphenyl compound (III). In the organic solvent, the catalyst is catalytically reduced to obtain the 2-aminobiphenyl compound (III);
  • Is selected from hydrogen, cyano, hydroxy, halo, Ci ⁇ C 6 alkyl, Ci ⁇ C 6 alkoxy, Ci ⁇ C 6 alkylthio group, aryl group, and may be a multiple-substituted same or different from each other;
  • R 2 Selected from hydrogen, cyano, halogen, Ci ⁇ C6 alkyl, CH ⁇ alkoxy, C ⁇ Cs alkylthio, aryl;
  • p is selected from 1, 2, 3, 4 or 5.
  • the organic solvent is toluene, xylene, chlorobenzene, methanol, ethanol, water or a mixture thereof, and the mass of the solvent is 1 to 20 times the mass of the raw material, and the catalyst is Pd, Pt or Ni.
  • the amide compound (VI) is obtained by reacting a 2-aminobiphenyl compound (III) with an acid chloride (V);
  • R 2 Selected from hydrogen, cyano, halogen, Ci ⁇ C 6 alkyl, Ci ⁇ C 6 alkoxy, Ci ⁇ C 6 alkylthio, aryl;
  • R4 is Ci ⁇ C 12 alkyl, aryl or heterocyclic Base;
  • p is selected from 1, 2, 3, 4 or 5.
  • the amide compound (VI) is 2-chloro-N-(biphenyl-2-yl)nicotinamide, 3-(difluoromethyl)-1-methyl-indole-(3',4',5 '-Trifluorobiphenyl-2-yl) B-pyrazole-4-carboxamide or N-(3',4'-dichloro-5-fluoro[1,1'-biphenyl]-2-yl) - 3-Difluoromethyl small methyl-1 ⁇ -pyrazole-4-carboxamide.
  • the nuclear magnetic resonance resonance data of the obtained 4'-chloro-2-aminobiphenyl compound is as follows: 'HNMR OO MHz, CDC1 3 ): ⁇ 7.39 to 7.42 (m, 4H), 7.16 to 7.19 (td, 1H), 7.87 ⁇ 7.89 (dd, 1H), 7.09-7.10 (dd, 1H), 6.83 to 6.86 (t, 1H), 6.78 (d, 1H), 3.94 (br., 2H).
  • the nuclear magnetic resonance data of the obtained 4'-chloro-2-nitrobiphenyl compound are as follows: iHNMR OO MHz, CDC1 3 ): ⁇ 7.87 ⁇ 7.89 (dd, 1 ⁇ ), 7.61 ⁇ 7.64(td, 1 ⁇ ), 7.49 ⁇ 7.52 (td, 1 ⁇ ), 7.40 ⁇ 7.42 (m, 3 ⁇ ), 7.24 ⁇ 7.26 (q, 2 ⁇ ).
  • the nuclear magnetic resonance resonance data of the obtained boscalid compound is as follows: 'HNMR OO MHz, CDC1 3 ): ⁇ 8.40 to 8.45 (m, 2 ⁇ ), 8.13 to 8.15 (dd, 2H), 7.43 to 7.45 (t, 2H), 7.33 ⁇ 7.37(m, 3H), 7.27 (d, 2H).

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
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Abstract

提供联苯化合物的制备及应用。以2-硝基芳基乙烯及取代的1,3-丁二烯为原料一步得到2-氨基联苯化合物、2-硝基联苯化合物或它们的混合物;反应得到的2-硝基联苯化合物或其与2-氨基联苯化合物的混合物可还原制备2-氨基联苯化合物。以该方法制备的2-氨基联苯化合物为原料与酰氯反应可制得具有杀菌作用的酰胺化合物。该方法避免使用金属化合物、贵金属催化剂及特殊硼试剂,以简单易得化合物原料一步得到联苯化合物,工艺步骤少,后处理简单,利于工业化。

Description

说明书 联苯化合物的制备及应用
技术领域 本发明涉及有机物化合物的制备及应用方法, 尤其涉及联苯化合物的制备及 应用。 背景技术
联苯化合物, 如啶酰菌胺【B0SCalid】、 氟唑菌酰胺 [ Fluxapyroxad]及联苯吡 菌胺【BiXafen】等是重要的新型酰胺类杀菌剂。 2-硝基联苯化合物、 2-氨基联苯 化合物等是制备这类新型酰胺类杀菌剂关键中间体。 目前, 联苯化合物的制备工 艺深受广大农药研发者的关注。
WO2013132006公开了以卤代苯肼、取代苯胺为原料, 以二氧化锰或高锰酸 钾等金属氧化物为氧化剂,制备 2-氨基联苯化合物的方法。该方法使用高毒性芳 胺为主要原料, 同时产生大量含锰固废。 收率为 32〜62%。
WO2010094736 公开了一种以混合有机金属试剂与溴苯胺偶联制备氨基联 苯的方法。 该方法是在氮气保护及无水条件下, 首先制备 3,4,5-三氟苯基溴化镁 的四氢呋喃溶液; 在 25°C条件下, 把 3,4,5-三氟苯基溴化镁的四氢呋喃溶液滴入 氯化锌甲苯溶液中; 搅拌 20分钟后, 向反应体系中加入 N-甲基吡咯烷酮; 5分 钟后, 向反应体系中加入少量三叔丁基膦四氟硼酸盐和少量双 (二亚苄基丙酮) 钯, 再加入 2-溴苯胺, 加毕, 25°C搅拌 5小时得到 3,4,5-三氟 -2'-氨基联苯, 收 率 55%。 该方法步骤繁琐, 且使用了高毒性的 2-溴苯胺及昂贵的有机贵金属催 化剂双 (二亚苄基丙酮) 钯。
WO20060002421公开了一种 Suzuki偶联反应制备联苯化合物的方法。 该方 法以卤代芳胺 (或卤代硝基苯)、 芳基硼酸为原料, 采用醋酸钯或三苯基膦化钯 等贵金属钯的化合物为催化剂, 在氮气保护条件下以碳酸钾为碱, 在 DMF-水的 混合介质中经过碳碳偶联反应得到 2-氨基联苯化合物或 2-硝基联苯化合物, 2- 硝基联苯化合物经过催化加氢还原硝基为氨基得到 2-氨基联苯化合物。但该方法 使用了昂贵的芳基硼酸及贵金属钯催化剂, 导致工艺成本过高。
虽然经过上述方法均可以制备具有不同结构的联苯化合物,但是这些报道的 方法均对原材料的结构有特殊要求,尤其是芳胺, 不但毒性高而且都要求取代基 连在氨基的邻位, 造成原材料不足或者来源困难等问题。 同时, 上述工艺过程中 使用金属氧化剂、 有机金属、 有机硼等特殊试剂, 既增加了工艺成本及废物量, 又需要特殊的装备及无水无氧等苛刻的反应条件。
WO2010102980公开了一种以 1,3-丁二烯及 2-硝基-芳基乙烯为原料制备联 苯化合物的方法。 该方法通过 Diels-Alder反应合成中间体硝基芳基环己烯, 再 经卤代、 碱存在条件下脱卤芳香化过程制备 2-硝基联苯化合物。 所得到的 2-硝 基联苯化合物再经还原才能得到 2-氨基联苯化合物。该工艺虽然避免使用金属氧 化剂、有机金属、有机硼等试剂, 但该方法中需要至少三步反应才能制备成联苯 化合物,而且必须通过使用液溴、 N-氯代琥珀酰亚胺等试剂卤代及叔丁醇钾等碱 作用下消除脱卤两步反应才能实现芳香化。这不仅增加了工艺路线的繁琐度, 同 时增加了工艺成本。
本发明公开联苯化合物制备及应用的简便新方法。该方法以 2-硝基芳基乙烯 (I)与有特殊氨基取代的 1,3-丁二烯 (II)为原料。 本发明者惊奇地发现该反应在一 定温度及有或没有催化剂存在的条件下, 一步即可得到 2-氨基联苯化合物 (111)、 2-硝基联苯化合物 (IV)或两者的混合物。 并且, 可以通过调整反应条件控制产物 组成, 如温度低有利于 2-硝基联苯化合物 (IV)的产生, 温度高有利于 2-氨基联苯 化合物 (III)的生成。 同时如需要, 本发明所得 2-氨基联苯化合物 (III)与 2-硝基联 苯化合物 (IV)的混合物不经分离即可通过常规还原方法得到单一的 2-氨基联苯 化合物 (III)产品。
发明内容
本发明的目的是克服现有技术的不足, 提供联苯化合物的制备及应用。 通过以下技术方案实现:
将 2-硝基芳基乙烯 (I)与取代的 1,3-丁二烯 (II)混合, 在有或没有催化剂的溶 剂中, 反应直接得到 2-氨基联苯化合物 (111)、 2-硝基联苯化合物 (IV)或两者混合 物;
用反应式表示为:
Figure imgf000004_0001
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基, 可以是多取代且互相可以相同或不同; R2选自氢, 氰基, 卤素, Ci〜C6 烷基, C^Cs烷氧基, C^Cs烷硫基, 芳基; X选自 C、 0、 S或 R3-N; m、 n相 互独立选自 0、 1、 2或 3; p选自 1、 2 、 3、 4或 5; R3为氢、 C^ 烷基或 C6〜C12 芳基。
所述的催化剂为 Pd、 Pt或 Ni。 所述的 2-硝基芳基乙烯 (I)与取代的 1,3-丁二 烯 (II)的摩尔比为 2:1〜1 :5。所述的溶剂为甲苯、二甲苯、氯苯、乙腈、二氯甲烷、 水或其混合物, 所用溶剂的质量为 2-硝基芳基乙烯 (I)质量的 1〜20倍。 所述的反 应在 60〜160°C及 0.2〜4.0MPa条件下进行。
联苯化合物的制备方法制备的联苯化合物的应用是用于制备 2-氨基联苯化 合物 (III)或酰胺化合物 (VI)。
2-氨基联苯化合物 (III)的制备方法为: 将 2-硝基联苯化合物 (IV)或 2-硝基联 苯化合物 (IV) 与 2-氨基联苯化合物 (III)的混合物混于有机溶剂中, 经催化剂催 化还原得到 2-氨基联苯化合物 (III);
用反应式表 :
Figure imgf000004_0002
其巾 : 选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基, 可以是多取代且互相可以相同或不同; R2选自氢, 氰基, 卤素, Ci〜C6 烷基, CH^烷氧基, C^Cs烷硫基, 芳基; p选自 1、 2 、 3、 4或 5。
所述有机溶剂为甲苯、 二甲苯、 氯苯、 甲醇、 乙醇、 水或其混合物, 溶剂的 质量为原料质量的 1〜20倍, 所述的催化剂为 Pd、 Pt或 Ni。
酰胺化合物 (VI)的制备方法为:
以 2-氨基联苯化合物 (III)与酰氯 (V)反应得酰胺化合物 (VI);
用反应式表示为:
Figure imgf000005_0001
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基, 可以是多取代且互相可以相同或不同; R2选自氢, 氰基, 卤素, Ci〜C6 烷基, Ci〜C6烷氧基, Ci〜C6烷硫基,芳基; R4为 Ci〜C12烷基、芳基或杂环芳基; p选自 1、 2 、 3、 4或 5。
所述的酰胺化合物 (VI)为 2-氯 -N- (联苯 -2-基)烟酰胺、 3- (二氟甲基) -1-甲基 -Ν-(3',4',5'-三氟联苯 -2-基) B比唑 -4-甲酰胺或 N- (3',4'-二氯 -5-氟 [1,1'-联苯] -2-基) -3- 二氟甲基小甲基 -1Η-吡唑 -4-甲酰胺。
供了一种制备联苯化合物的简便新方法: 以简单易得的原料为底物, 一步得 到芳构化的联苯化合物,尤其是可以一步得到芳构化的氨基联苯化合物。该方法 不需特殊的偶联试剂, 也不需要繁琐的芳构化过程, 反应后处理简单。 同时,由 本发明方法得到的氨基联苯化合物可进一步与酰氯化合物偶联制备酰胺化合物。 整个工艺步骤少, 条件温和, 有利于工业化生产。
具体实施方式
联苯类化合物的制备及应用的具体实施方式如下:
联苯化合物的制备方法是将 2-硝基芳基乙烯 (I)与取代的 1,3-丁二烯 (II)混合, 在有或没有催化剂的溶剂中, 反应直接得到 2-氨基联苯化合物 (111)、 2-硝基联苯 化合物 (IV)或两者混合物;
用反应式表示为:
Figure imgf000006_0001
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基, 可以是多取代且互相可以相同或不同; R2选自氢, 氰基, 卤素, Ci〜C6 烷基, C^Cs烷氧基, C^Cs烷硫基, 芳基; X选自 C、 0、 S或 R3-N; m、 n相 互独立选自 0、 1、 2或 3; p选自 1、 2 、 3、 4或 5; R3为氢、 C^ 烷基或 C6〜C12 芳基。
所述的催化剂为 Pd、 Pt或 Ni。 所述的 2-硝基芳基乙烯 (I)与取代的 1,3-丁二 烯 (II)的摩尔比为 2:1〜1 :5。所述的溶剂为甲苯、二甲苯、氯苯、乙腈、二氯甲烷、 水或其混合物, 所用溶剂的质量为 2-硝基芳基乙烯 (I)质量的 1〜20倍。 所述的反 应在 60〜160°C及 0.2〜4.0MPa条件下进行。
联苯化合物的制备方法制备的联苯化合物的应用是用于制备 2-氨基联苯化 合物 (III)或酰胺化合物 (VI)。
2-氨基联苯化合物 (III)的制备方法为: 将 2-硝基联苯化合物 (IV)或 2-硝基联 苯化合物 (IV) 与 2-氨基联苯化合物 (III)的混合物混于有机溶剂中, 经催化剂催 化还原得到 2-氨基联苯化合物 (III);
用反应式表示为:
Figure imgf000007_0001
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基, 可以是多取代且互相可以相同或不同; R2选自氢, 氰基, 卤素, Ci〜C6 烷基, CH^烷氧基, C^Cs烷硫基, 芳基; p选自 1、 2 、 3、 4或 5。
所述有机溶剂为甲苯、 二甲苯、 氯苯、 甲醇、 乙醇、 水或其混合物, 溶剂的 质量为原料质量的 1〜20倍, 所述的催化剂为 Pd、 Pt或 Ni。
酰胺化合物 (VI)的制备方法为:
以 2-氨基联苯化合物 (III)与酰氯 (V)反应得酰胺化合物 (VI);
用反应式表示为:
Figure imgf000007_0002
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基, 可以是多取代且互相可以相同或不同; R2选自氢, 氰基, 卤素, Ci〜C6 烷基, Ci〜C6烷氧基, Ci〜C6烷硫基,芳基; R4为 Ci〜C12烷基、芳基或杂环芳基; p选自 1、 2 、 3、 4或 5。
所述的酰胺化合物 (VI)为 2-氯 -N- (联苯 -2-基)烟酰胺、 3- (二氟甲基) -1-甲基 -Ν-(3',4',5'-三氟联苯 -2-基) B比唑 -4-甲酰胺或 N- (3',4'-二氯 -5-氟 [1,1'-联苯] -2-基) -3- 二氟甲基小甲基 -1Η-吡唑 -4-甲酰胺。
下面的实施例进一步举例说明了本发明的一些特征,但本发明所申请保护的内容 和范围并不受下述实施例的限制。
实施例 1 :
向 lOOmL反应釜中加入 10.5 g 1- (丁 -1,3-二烯基) 吡咯烷、 3.07g 1- (4-氯- 苯基) -2-硝基乙烯、 50.0mL甲苯及 0.2 g Pd/C, 密闭, 升温至 140°C, 搅拌 2小 时。 降温, 脱溶、 纯化得到 1.65g 4'-氯 -2-氨基联苯。 所得 4'-氯 -2-氨基联苯类化 合物的核磁波谱共振数据如: 'HNMR OO MHz, CDC13): δ 7.39〜7.42(m, 4H), 7.16〜7.19(td, 1H), 7.87〜7.89(dd, 1H), 7.09-7.10(dd, 1H), 6.83〜6.86(t, 1H), 6.78 (d, 1H), 3.94(br.,2H)。
实施例 2:
向 250mL反应釜中加入 1.5g 1- (丁 -1,3-二烯基) 吡咯烷、 4.7g 1- (4-氯-苯 基) -2-硝基乙烯、 150.0mL二甲苯, 密闭, 升温至 160°C, 搅拌 4小时。 降温, 脱溶、 纯化得到 1.21g 4'-氯 -2-氨基联苯。
实施例 3:
向 lOOmL反应釜中加入 4.1g 1- (丁 -1,3-二烯基) 吡咯烷、 3.07g 1- (4-氯- 苯基) -2-硝基乙烯、 50.0mL二氯甲烷, 升温至 80°C,搅拌 4小时。降温, 脱溶、 纯化得到 2.1g 4'-氯 -2-硝基联苯。所得 4'-氯 -2-硝基联苯类化合物的核磁波谱共振 数据如: iHNMR OO MHz, CDC13): δ 7.87〜7.89(dd, 1Η), 7.61〜7.64(td, 1Η), 7.49〜7.52(td, 1Η), 7.40〜7.42(m, 3Η), 7.24〜7.26(q, 2Η)。
实施例 4:
向 500mL反应釜中加入 22.5g 1- (丁 -1,3-二烯基) 吗啉、 17.0g 1- (4-氯-苯 基) -2-硝基乙烯、 200mL乙腈, 升温至 110°C, 搅拌 6小时。 降温, 脱溶、 纯化 得到 17.4g 4'-氯 -2-氨基联苯与 4'-氯 -2-硝基联苯混合物。
实施例 5:
把 13g 4'-氯 -2-氨基联苯与 4'-氯 -2-硝基联苯混合物与 60mL甲醇混合物及 1.6 g Pt/C混合, 通入 0.2MPa的氢气, 搅拌至反应完全, 脱溶, 纯化得到 10.2 g 4'- 氯 -2-氨基联苯。
实施例 6:
向 500mL反应釜中加入 24.5g 1- (丁 -1,3-二烯基) 哌啶、 19.0g 1- (4-氯-苯 基) -2-硝基乙烯、 200mL甲苯, 升温至 120°C, 搅拌 4小时。 降至室温, 加入 1.4 g Raney-Ni并通入 0.2MPa的氢气, 搅拌至反应完全, 脱溶, 纯化得到 14.2 g 4'-氯 -2-氨基联苯。
实施例 7:
把经上述步骤得到的 24.0g 4'-氯 -2-氨基联苯与 50mL氯仿混溶, 18.0g三乙 胺, 25°C条件下加入 21.7g 2-氯烟酸酰氯, 搅拌至反应完全。 向反应体系中加入 50mL水, 分层, 有机层经脱溶, 纯化得到 34.4g啶酰菌胺。 所得啶酰菌胺化合 物的核磁波谱共振数据如: 'HNMR OO MHz, CDC13): δ 8.40〜8.45(m, 2Η), 8.13〜8.15(dd,2H), 7.43〜7.45(t, 2H), 7.33~7.37(m, 3H), 7.27 (d,2H)。
实施例 8:
向 150mL反应釜中加入 24.5g 1- (丁 -1,3-二烯基) 哌啶、 21.7g 1- (4-氯-苯 基) -2-氯 -2-硝基乙烯、 50mL氯苯, 升温至 140°C, 搅拌 2小时, 降至室温, 搅 拌条件下加入 8g三乙胺和 12.7g 2-氯烟酸酰氯, 搅拌至 4'-氯 -2-氨基联苯完全消 失, 向反应体系中加入 50mL水, 分层, 有机层经 5%碳酸钠水溶液洗两次, 脱 溶, 纯化得到 12.2g啶酰菌胺。

Claims

权利要求书
1. 联苯化合物的制备方法, 其特征在于,
将 2-硝基芳基乙烯 (I)与取代的 1,3-丁二烯 (II)混合, 在有或没有催化剂的溶 剂中, 反应直接得到 2-氨基联苯化合物 (111)、 2-硝基联苯化合物 (IV)或两者混合 物;
用反应式表示为:
Figure imgf000010_0001
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基; R2选自氢, 氰基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳 基; X选自 C、 0、 S或 R3-N; m、 n相互独立选自 0、 1、 2或 3; p选自 1、 2 、 3、 4或 5; R3为氢、 C^Cs烷基或 C6〜C12芳基。
2. 如权利要求 1所述的联苯化合物的制备方法, 其特征在于, 所述的催化剂为 Pd、 Pt或 Ni。
3. 如权利要求 1所述的联苯化合物的制备方法, 其特征在于, 所述的 2-硝基芳 基乙烯 (I)与取代的 1,3-丁二烯 (II)的摩尔比为 2:1〜1 :5。
4. 如权利要求 1所述的联苯化合物的制备方法, 其特征在于, 所述的溶剂为甲 苯、 二甲苯、 氯苯、 乙腈、 二氯甲烷、 水或其混合物, 所用溶剂的质量为 2-硝基 芳基乙烯 (I)质量的 1〜20倍。
5. 如权利要求 1 所述的联苯化合物的制备方法, 其特征在于, 所述的反应在 60〜160°C及 0.2〜4.0MPa条件下进行。
6. 一种如权利要求 1所述方法制备的联苯化合物的应用, 其特征在于用于制备 2-氨基联苯化合物 (III)或酰胺化合物 (VI)。
7. 根据权利要求 6所述的一种联苯化合物的应用, 其特征在于 2-氨基联苯化合 物 (III)的制备方法为: 将 2-硝基联苯化合物 (IV)或 2-硝基联苯化合物 (IV)与 2- 氨基联苯化合物 (III)的混合物混于有机溶剂中,经催化剂催化还原得到 2-氨基联 苯化合物 (III);
用反应式表 :
Figure imgf000011_0001
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基; R2选自氢, 氰基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳 基; p选自 1、 2 、 3、 4或 5。
8. 如权利要求 7所述的一种联苯化合物的应用, 其特征在于, 所述有机溶剂为 甲苯、 二甲苯、 氯苯、 甲醇、 乙醇、 水或其混合物, 溶剂的质量为原料质量的 1〜20倍, 所述的催化剂为 Pd、 Pt或 Ni。
9. 如权利要求 6所述的一种联苯化合物的应用,其特征在于酰胺化合物 (VI)的制 备方法为: 以 2-氨基联苯化合物 (III)与酰氯 (V)反应得酰胺化合物 (VI);
用反应式表示为:
Figure imgf000011_0002
其巾:
选自氢, 氰基, 羟基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳基; R2选自氢, 氰基, 卤素, Ci〜C6烷基, Ci〜C6烷氧基, Ci〜C6烷硫基, 芳 基; R4为 Ci〜C12烷基、 芳基或杂环芳基; p选自 1、 2 、 3、 4或 5。
10. 如权利要求 9所述的一种联苯化合物的应用, 其特征在于, 所述的酰胺化合 物 (VI)为 2-氯 -N- (联苯 -2-基)烟酰胺、 3- (二氟甲基) -1-甲基 -Ν-(3',4',5'-三氟联苯 -2- 基)吡唑—4-甲酰胺或 Ν- ( 3',4'-二氯 -5-氟 [1,1'-联苯] -2-基) -3-二氟甲基小甲基 -1Η- 吡唑 -4-甲酰胺。
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CN1575281A (zh) * 2001-11-02 2005-02-02 巴斯福股份公司 制备2-卤代吡啶甲酰胺的方法
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TW200804236A (en) * 2006-04-07 2008-01-16 Bayer Cropscience Ag Process for preparing biphenylamines via vinylanilines
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CN109476604A (zh) * 2016-08-04 2019-03-15 江苏龙灯化学有限公司 用于制备啶酰菌胺的方法

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