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1,5-diphenyl-1H-pyrazole-4-carbonitrile | 7791-48-2

中文名称
——
中文别名
——
英文名称
1,5-diphenyl-1H-pyrazole-4-carbonitrile
英文别名
4-Cyano-1,5-diphenylpyrazole;1,5-diphenylpyrazole-4-carbonitrile
1,5-diphenyl-1H-pyrazole-4-carbonitrile化学式
CAS
7791-48-2
化学式
C16H11N3
mdl
——
分子量
245.283
InChiKey
NOWGUHWINCHCMC-UHFFFAOYSA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

物化性质

  • 熔点:
    182 °C
  • 沸点:
    455.4±33.0 °C(Predicted)
  • 密度:
    1.13±0.1 g/cm3(Predicted)

计算性质

  • 辛醇/水分配系数(LogP):
    3.3
  • 重原子数:
    19
  • 可旋转键数:
    2
  • 环数:
    3.0
  • sp3杂化的碳原子比例:
    0.0
  • 拓扑面积:
    41.6
  • 氢给体数:
    0
  • 氢受体数:
    2

反应信息

  • 作为产物:
    描述:
    3,3-diphenyl-3H-pyrazole-4-carbonitrile 以 甲苯 为溶剂, 反应 1.0h, 生成 1,5-diphenyl-1H-pyrazole-4-carbonitrile
    参考文献:
    名称:
    4-和5-单-和4,5-二取代的3,3-二苯基-3 H-吡唑的热范Alphen-Hüttel重排的区域选择性
    摘要:
    3,3-二苯基-3 H-吡唑-4-羧酸甲酯,3,3-二苯基-3 H-吡唑-4-腈和甲基5-甲基-3,3-二苯基-甲基的热范Alphen–Hüttel重排3 H-吡唑-4-羧酸酯涉及一个苯基从3位到N 2的完全区域选择性迁移,并形成芳香族1 H-吡唑系统。甲基-3,3-二苯基- 3的热重排ħ吡唑-5-羧酸乙酯导致形成甲基-4,5-二苯基-1-的ħ吡唑-3-羧酸乙酯作为3-苯基的迁移的结果只到C 4原子和随后的质子异构化。在类似条件下,4-甲基-3,3-二苯基-3 H-吡唑-5-羧酸甲酯,5-(甲磺酰基)-3,3-二苯基-3 H-吡唑-4-羧酸甲酯,5-(甲基苯磺酰基)-3,3-二苯基-3- ħ -吡唑-4-羧酸乙酯,和二甲基-3,3-二苯基-3- ħ吡唑-4,5-二羧酸二已经区域选择性转化成相应的4个ħ -pyrazoles。5-(4-甲基苯磺酰基)-3,3-二苯基-3 H-吡唑-4-腈的热解产生1
    DOI:
    10.1134/s1070428016060178
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文献信息

  • Aqueous One-Pot Synthesis of Pyrazoles, Pyrimidines and Isoxazoles Promoted by Microwave Irradiation
    作者:Valentina Molteni、Matthew M. Hamilton、Long Mao、Christine M. Crane、Andreas P. Termin、Dean M. Wilson
    DOI:10.1055/s-2002-33650
    日期:——
    Microwave irradiation promotes the conversion of enaminoketones formed in situ into a variety of heterocycles by reaction with the appropriate bidentate nucleophile. The advantages of the method over previous approaches are short reaction times and facile purification by precipitation of the products in aqueous media. Moreover the convenient one-pot procedure makes these syntheses particularly suitable for library production. Organic reactions in aqueous media have become of great interest as water is not only more environmentally friendly, but also because organic reactions in water often display unique reactivity and selectivity.
    微波辐射促进了现场形成的烯胺酮与适当的二齿亲核试剂反应,转化为多种杂环化合物。与之前的方案相比,该方法的优势在于反应时间短,且通过产品在介质中的沉淀实现简便纯化。此外,便捷的一锅法工艺使得这些合成特别适合于库的生产。相中的有机反应备受关注,不仅因为更为环保,还因为在中进行的有机反应常常展现出独特的反应性和选择性。
  • Steric and Electronic Control in the Addition of Hydrazine and Phenylhydrazine to α-[(Dimethylamino)methylene]-β-oxoarylpropanenitriles
    作者:David E. Tupper、Mark R. Bray
    DOI:10.1055/s-1997-1186
    日期:1997.3
    Reaction of hydrazine with α-[(dimethylamino)methylene]-β-oxoarylpropanenitriles 2 gives a mixture of the 4-aroyl-5-aminopyrazoles 3 and the 5-aryl-4-cyanopyrazoles 4. Similarly reaction of 2 with phenylhydrazine gives rise to the 5-amino-4-aroyl-1-phenylpyrazoles 5 and 5-aryl-4-cyano-1-phenylpyrazoles 6. The regioselectivity of addition has been investigated with respect to the electronic nature and steric requirements of the aromatic substitution. The ratio of products was found to be independent of the electronic nature of the substituent. The outcome of the reaction was however very sensitive to steric factors. Substituents in the para- and meta-positions favoured formation of the pyrazole-nitrile products 4 and 6, whereas sterically demanding ortho-substituents favoured the pyrazole-amino ketones 3 and 5.
    与α-[(二甲氨基)亚甲基]-β-氧基芳烷腈 2 的反应生成4-酰基-5-吡唑 3和5-芳基-4-吡唑 4的混合物。同样,2与苯的反应产生5-基-4-酰基-1-苯基吡唑 5和5-芳基-4--1-苯基吡唑 6。关于芳香取代的电子性质和立体要求,添加的区域选择性进行了研究。发现产物的比例与取代基的电子性质无关。然而,反应的结果对立体因素非常敏感。对位和间位的取代基有利于形成吡唑腈产物 4 和 6,而立体要求较大的邻位取代基则有利于生成吡唑基酮 3 和 5。
  • Similarity and Differences in the Regioselectivities of Thermal and Acid-Catalyzed van Alphen–Hüttel Rearrangements in the Series of 3,3-Diphenyl-3H-pyrazoles Containing Electron-Withdrawing Substituents on C4 and C5
    作者:V. A. Vasin、V. V. Razin、E. V. Bezrukova
    DOI:10.1134/s1070428018070138
    日期:2018.7
    Alphen–Hüttel rearrangement with migration of one phenyl group to C4 on heating in an aprotic solvent (benzene, toluene), as well as on keeping at 20°C in acetic acid in the presence of a catalytic amount of concentrated sulfuric acid. Under similar conditions, 3,3-diphenyl-3H-pyrazoles with a strong electronwithdrawing group (sulfo or cyano) on C4 isomerize to 1H-pyrazoles via migration of one phenyl group to
    在5位上带有吸电子取代基的3,3-Diphenyl-3 H-吡唑类化合物也经历了VanAlphen-Hüttel重排,在非质子溶剂(苯,甲苯)中加热时,一个苯基迁移至C 4如在催化量的浓硫酸存在下于20℃保持在乙酸中。在相似条件下,C 4上具有强吸电子基团(磺基或基)的3,3-二苯基-3 H-吡唑通过一个苯基向N 2的迁移异构化为1 H-吡唑。如果在4-位存在一个适度的吸电子取代基(烷氧基羰基或乙酰基),则酸催化的苯基迁移主要针对C 4原子,而热迁移则针对N 2。有人提出了观察到的热和酸催化的范·阿尔芬-赫特尔重排的区域选择性相似和不同的可能原因。
  • Iodine‐Mediated One‐Pot Synthesis of 1,4,5‐Substituted Pyrazoles from MBH Acetates via Allyl Hydrazone Intermediate
    作者:Dipak J. Dahatonde、Aritra Ghosh、Adilakshmi Vutla、Sanjay Batra
    DOI:10.1002/ejoc.202300355
    日期:2023.7.21
    A one-pot regioselective synthesis of 1,4,5-pyrazoles through a iodine-mediated reaction between Morita-Baylis-Hillman acetates and hydrazines via intermediacy of allyl hydrazone is described.
    描述了通过 Morita-Baylis-Hillman 乙酸酯和之间以烯丙基腙为中介的介导反应,一锅法区域选择性合成 1,4,5-吡唑
  • Cyanoacetophenone as a Synthon for 1,4,5-Substituted Pyrazoles
    作者:Claudia Reidlinger、Renate Dworczak、Hans Junek
    DOI:10.1007/pl00010132
    日期:1998.11
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