3-bromo-5-phenylisothiazole-4-carbonitrile | 647016-68-0

• 分子结构分类: 有机化合物 - 有机卤素化合物 - 芳基卤化物
• 英文名称: 3-bromo-5-phenylisothiazole-4-carbonitrile
• 英文别名: 3-bromo-5-phenyl-1,2-thiazole-4-carbonitrile
• CAS: 647016-68-0
• 化学式: C₁₀H₅BrN₂S
• 分子量: 265.133
• InChiKey: BOQCYCFKZKYPBH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  64.9
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  3-bromo-5-phenylisothiazole-4-carbonitrile 在 肼 作用下， 反应 0.17h， 以100%的产率得到3-氨基-5-苯基-1H-吡唑-4-甲腈
  参考文献：
  名称：

  The conversion of isothiazoles into pyrazoles using hydrazine

  摘要：

  The conversion of isothiazoles into pyrazoles on treatment with hydrazine is investigated. The influence of various C-3, C-4 and C-5 isothiazole substituents and some limitations of this ring transformation are examined. When the isothiazole C-3 substituent is a good nucleofuge, 3-aminopyrazoles are obtained. However, when the 3-substituent is not a leaving group it is retained in the pyrazole product. Treatment of 4-bromo-3-chloro-5-phenylisothiazoie 56 or 3-chloro-4,5-diphenylisothiazole 57 with anhydrous hydrazine at ca. 200 degrees C for a few minutes gives the corresponding 3-hydrazinoisothiazoles 61 and 64 respectively in high yields; the stability of these new hydrazines is investigated. 5,5'-Diphenyl-3,3'-biisothiazole-4,4'-dicarbonitrile 78 reacts with hydrazine to give 5,5'-diphenyl-3,3'-bi(1H-pyi-azole)-4,4'-dicarbonitrile 79. Methylhydrazine reacts with 3-chloro-5-phenytisothiazole-4-carbonitrile 1 to give 3-(1-methylhydrazino)-5-phenylisothiazole-4-carbontrile 83 and 3-amino-lmethyl-5-phenylpyrazole-4-carbonitrile 84. All products are fully characterised and rational mechanisms for the isothiazole into pyrazole transformation are proposed. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2009.06.041
• 作为产物：
  描述：

  三丁基苯基锡 、 3,5-dibromoisothiazole-4-carbonitrile 在 palladium diacetate 作用下， 以 乙腈 为溶剂， 反应 0.33h， 以93%的产率得到3-bromo-5-phenylisothiazole-4-carbonitrile
  参考文献：
  名称：

  New regiospecific isothiazole C–C coupling chemistry

  摘要：

  区域选择性钯催化的偶联反应以良好至高产率实现，从3,5-二氯或3,5-二溴异噻唑-4-腈1和2出发，通过Stille偶联反应得到3-卤代-5-(杂/芳基、烯基和炔基)异噻唑3、4、6–9，通过Sonogashira反应得到3-卤代-5-(杂/芳基炔基)异噻唑14–19，以及通过Ullmann型偶联反应得到5,5'-二(3-氯异噻唑-4-腈)13。3,5-二溴异噻唑-4-腈2比3,5-二氯异噻唑-4-腈1更具反应活性，足以有效进行Stille、Negishi和Sonogashira偶联反应。5,5-二(3-氯异噻唑-4-腈)13通过钯催化的Ullmann偶联反应由3-氯-5-碘异噻唑-4-腈11制备。多种3-取代异噻唑（3-取代基=Cl、Br、OMs、OTs和OTf）反应活性较低，未能成功在异噻唑C-3位置进行Suzuki偶联反应。通过Sandmeyer碘化法制备的3-碘-5-苯基异噻唑-4-腈28成功参与了Suzuki、Ullmann型、Stille、Negishi和Sonogashira偶联反应。所有产物均经过充分表征。

  DOI：

  10.1039/b607442a

文献信息

• Regiospecific Suzuki coupling of 3,5-dichloroisothiazole-4-carbonitrile
  作者：Irene C. Christoforou、Panayiotis A. Koutentis、Charles W. Rees

  DOI：10.1039/b306005e

  日期：——

  3,5-Dichloroisothiazole-4-carbonitrile 1 reacts with aryl- and methylboronic acids to give in high yields the 3-chloro-5-(aryl and methyl)-isothiazole-4-carbonitrile 2 regiospecifically. The reaction was optimized with respect to base, phase transfer agent and palladium catalyst. Suzuki coupling at C-5 was also achieved in high yield using potassium phenyltrifluoroborate. The regiospecificity of either coupling method is maintained with 3,5-dibromoisothiazole-4-carbonitrile 4 to give exclusively 3-bromo-5-phenylisothiazole-4-carbonitrile 5. Suzuki cross-coupling conditions applied to 3-chloro-5-phenylisothiazole-4-carbonitrile 2a gave 3-phenoxy-5-phenylisothiazole-4-carbonitrile 6, which was prepared independently, and not the 3-phenyl derivative. All isothiazole products were fully characterized.

  3,5-二氯异噻唑-4-甲腈 1 与芳基酸和甲基硼酸反应，可以高产 3-氯-5-（芳基和甲基）异噻唑-4-甲腈 2。该反应在碱、相转移剂和钯催化剂方面进行了优化。使用苯基三氟硼酸钾也在 C-5 处实现了高产率的铃木偶联。在 3,5-二溴异噻唑-4-甲腈 4 中，这两种偶联方法都保持了区域特异性，只得到 3-溴-5-苯基异噻唑-4-甲腈 5。在 3-氯-5-苯基异噻唑-4-甲腈 2a 的铃木交叉偶联条件下，得到了独立制备的 3-苯氧基-5-苯基异噻唑-4-甲腈 6，而不是 3-苯基衍生物。所有异噻唑产品均已完全表征。
• [EN] ISOTHIAZOLE AND PYRAZOLE DERIVATIVES FOR USE AS PLANT GROWTH REGULATORS<br/>[FR] DERIVES D'ISOTHIAZOLE ET DE PYRAZOLE UTILISES COMME REGULATEURS DE LA CROISSANCE VEGETALE
  申请人：SYNGENTA PARTICIPATIONS AG

  公开号：WO2010069877A1

  公开（公告）日：2010-06-24

  The present invention relates to isothiazole and pyrazole compounds of formula (I) having plant growth regulating properties, to agricultural compositions comprising them, and to the use of said compounds for regulating plant growth.

  本发明涉及具有植物生长调节性质的异噻唑和吡唑化合物的公式(I)，涉及包含它们的农业组合物，以及使用所述化合物调节植物生长的方法。
• ISOTHIAZOLE AND PYRAZOLE DERIVATIVES FOR USE AS PLANT GROWTH REGULATORS
  申请人：Corsi Camilla

  公开号：US20110301034A1

  公开（公告）日：2011-12-08

  The present invention relates to isothiazole and pyrazole compounds of formula (I) having plant growth regulating properties, to agricultural compositions comprising them, and to the use of said compounds for regulating plant growth.

  本发明涉及具有植物生长调节性质的公式（I）的异噻唑和吡唑化合物，涉及包含它们的农业组合物，以及使用所述化合物调节植物生长的方法。
• Silver-Mediated Palladium-Catalyzed Direct C−H Arylation of 3-Bromoisothiazole-4-carbonitrile
  作者：Heraklidia A. Ioannidou、Panayiotis A. Koutentis

  DOI：10.1021/ol200196m

  日期：2011.3.18

  Silver(I) fluoride-mediated Pd-catalyzed C-H direct arylation/heteroarylation of 3-bromolsothiazole-4-carbonitrile (1a) gives twenty-four 5-aryl/heteroaryl-3-bromolsothiazole-4-carbonitriles. The reaction was partially optimized with respect to catalyst, ligand, and base. During this study 3,3'-dibromo-5,5'-blisothiazole-4,4'-dicarbonitrile (3a) was Isolated as a byproduct and subsequently prepared via the silver-mediated Pd-catalyzed oxidative dimerization of 3-bromolsothiazole-4-carbonitrile in 67% yield. The analogous phenylation and oxidative dimerization of 3-chloroisothiazole-4-carbonitrile (1b) gave 3-chloro-5-phenylIsothiazole-4-carbonitrile (4) and 3,3'-dichloro-5,5'-bilsothiazole-4,4'-dicarbonitrile (3b) In 96% and 69% yields, respectively.
• [EN] ISOTHIAZOLE AND PYRAZOLE DERIVATIVES AS FUNGICIDES<br/>[FR] DÉRIVÉS D'ISOTHIAZOLE ET DE PYRAZOLE COMME FONGICIDES
  申请人：SYNGENTA PARTICIPATIONS AG

  公开号：WO2009007098A1

  公开（公告）日：2009-01-15

  The present invention relates to compounds of Formula (I) wherein R1, R2, R3 or R4 are as defined in claim 1 or a salt or N-oxide thereof and their use in methods for the control and/or prevention of fungal infection, particularly in plants. The compounds claimed are isothiazole and pyrazole derivatives.