1-(buta-1,3-dien-1-yl)-1H-pyrazole | 125015-33-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 1-(buta-1,3-dien-1-yl)-1H-pyrazole
• CAS: 125015-33-0
• 化学式: C₇H₈N₂
• 分子量: 120.154
• InChiKey: IVMRJJUZYXVNHX-UTCJRWHESA-N

反应信息

• 作为产物：
  描述：

  1,1'-[(E)-but-2-ene-1,1-diyl]bis(1H-pyrazole) 在 对甲苯磺酸 作用下， 190.0~200.0 ℃ 、2.67 kPa 条件下， 生成 1-(buta-1,3-dien-1-yl)-1H-pyrazole 、 1-(buta-1,3-dien-1-yl)-1H-pyrazole
  参考文献：
  名称：

  Synthesis and structure of 1-(buta-1,3-dien-2-yl)pyrazoles and their behavior in Diels-Alder reactions

  摘要：

  A convenient procedure has been developed for the synthesis of cis- and trans-isomeric 1-(buta-1,3-dien-1-yl)-1H-pyrazoles by reaction of the corresponding pyrazoles with P-methylacrolein diethyl acetal and subsequent 1,4-cleavage of the nucleophilic substitution products. The behavior of the title compounds in Diels-Alder reactions with maleic anhydride has been studied. According to the H-1 NMR data, 1-(buta-1,3-dien-1-yl)-1H-pyrazole is a mixture of cis and trans isomers. Butadienylpyrazoles having methyl groups in the pyrazole ring do not react with maleic anhydride.

  DOI：

  10.1134/s1070363208030213