4-Amino-3,5-dimethylphenol hydrochloride | 14033-85-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 4-Amino-3,5-dimethylphenol hydrochloride
• CAS: 14033-85-3
• 化学式: C₈H₁₁NO*ClH
• 分子量: 173.642
• InChiKey: RWFPACBSLNEYSE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.01
• 重原子数：
  11.0
• 可旋转键数：
  0.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  46.25
• 氢给体数：
  2.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  4-Amino-3,5-dimethylphenol hydrochloride 在 硫酸 、 sodium nitrite 作用下， 反应 0.33h， 生成 2,6-Dimethyl-benzochinon-(1,4)-diazid-(4)
  参考文献：
  名称：

  Direct observation of the cyclopropene-vinylcarbene rearrangement. Matrix isolation of bicyclo[3.1.0]hexa-3,5-dien-2-ones

  摘要：

  4-Oxocyclohexa-2,5-dienylidenes 4b-g have been generated in argon matrices at 10 K by visible-light irradiation of the corresponding quinone diazides 5. Carbenes 4 have been characterized by IR and UV-vis spectroscopy and by their characteristic thermal reaction with molecular oxygen. On irradiation into the longest-wavelength absorption (420-700 nm), carbenes 4c-g rearrange to give the highly strained bicyclo[3.1.0]hexa-3,5-dien-2-ones 3c-g, while 4b is photostable under the same conditions. The photochemical 4 --> 3 rearrangement is completely reversible: infrared irradiation or visible light irradiation (lambda > 470 nm) of the cyclopropenes 3 lead back to triplet carbenes 4 quantitatively. In addition, several of the 1,3-bridged cyclopropenes 3 undergo a thermal rearrangement to give carbenes 4. This indicates that the highly strained cyclopropenes 3 are thermodynamically less stable than the corresponding carbenes 4 and kinetically only stabilized by a shallow energy barrier. Even under the conditions of matrix isolation at cryogenic temperatures, cyclopropenes 3 are metastable compounds.

  DOI：

  10.1021/jo00031a009
• 作为产物：
  描述：

  3,5-二甲基-4-硝基苯酚 在 palladium on activated charcoal 盐酸 、 sodium tetrahydroborate 作用下， 生成 4-Amino-3,5-dimethylphenol hydrochloride
  参考文献：
  名称：

  Direct observation of the cyclopropene-vinylcarbene rearrangement. Matrix isolation of bicyclo[3.1.0]hexa-3,5-dien-2-ones

  摘要：

  4-Oxocyclohexa-2,5-dienylidenes 4b-g have been generated in argon matrices at 10 K by visible-light irradiation of the corresponding quinone diazides 5. Carbenes 4 have been characterized by IR and UV-vis spectroscopy and by their characteristic thermal reaction with molecular oxygen. On irradiation into the longest-wavelength absorption (420-700 nm), carbenes 4c-g rearrange to give the highly strained bicyclo[3.1.0]hexa-3,5-dien-2-ones 3c-g, while 4b is photostable under the same conditions. The photochemical 4 --> 3 rearrangement is completely reversible: infrared irradiation or visible light irradiation (lambda > 470 nm) of the cyclopropenes 3 lead back to triplet carbenes 4 quantitatively. In addition, several of the 1,3-bridged cyclopropenes 3 undergo a thermal rearrangement to give carbenes 4. This indicates that the highly strained cyclopropenes 3 are thermodynamically less stable than the corresponding carbenes 4 and kinetically only stabilized by a shallow energy barrier. Even under the conditions of matrix isolation at cryogenic temperatures, cyclopropenes 3 are metastable compounds.

  DOI：

  10.1021/jo00031a009