2,6-二甲基-4-(己氧基甲基)苯酚 | 134778-31-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2,6-二甲基-4-(己氧基甲基)苯酚
• 英文名称: 2,6-dimethyl-4-(hexyloxymethyl)phenol
• 英文别名: 4-(hexyloxymethyl)-2,6-dimethylphenol；4-(Hexoxymethyl)-2,6-dimethylphenol
• CAS: 134778-31-7
• 化学式: C₁₅H₂₄O₂
• 分子量: 236.354
• InChiKey: BKPXBXQGLGHVFE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  29.5
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,4,6-三甲酚 、 正己醇 在 氧气 、 copper dichloride 、 丙酮肟 作用下， 40.0 ℃ 、114.7 kPa 条件下， 反应 1.12h， 以14%的产率得到3,5-二甲基-4-羟基苯甲醛
  参考文献：
  名称：

  The Oxidation of 2,4,6-Trimethylphenol with Molecular Oxygen Catalyzed by a Copper(II)-Oxime or Copper(II)-Amine System.

  摘要：

  2,4,6-三甲基苯酚（1a）在铜（II）氯化物-肟或铜（II）氯化物-胺催化剂的存在下，利用分子氧在酒精中于室温下可选择性地氧化为3,5-二甲基-4-羟基苯甲醛（2a）。当催化剂体系中存在酸时，2,6-二甲基对苯醌（3）和甲醛二烷基缩醛的形成会加速。2a很可能是通过形成醌亚甲基中间体，随后在中间体上重复进行1,6-加成反应，生成4-（烷氧基甲基）-2,6-二甲基苯酚（5a），然后形成3,5-二甲基-4-羟基苯甲醛二烷基缩醛，最终水解为2a。当反应时间缩短时，5a可以高收率地分离出来。通过本氧化体系对其他对位甲基取代苯酚的氧化反应进行了研究。

  DOI：

  10.1246/bcsj.66.251

文献信息

• Selective Oxidation of Phenols to Hydroxybenzaldehydes and Benzoquinones with Dioxygen Catalyzed by Polymer-Supported Copper
  作者：Ken Takaki、Yohei Shimasaki、Tetsuya Shishido、Katsuomi Takehira

  DOI：10.1246/bcsj.75.311

  日期：2002.2

  Oxidation of 2,6-disubstituted 4-methylphenols with dioxygen by using a CuCl2-poly(4-methyl-4′-vinyl-2,2′-bipyridine) catalyst gave the corresponding 4-hydroxybenzaldehydes in high yields. The activity of the catalyst and the selectivity of the products significantly depended on the reaction conditions and the composition of the catalyst. When the molar ratio of the bipyridine unit of the polymer ligand to Cu was unity, i.e., N/Cu = 2, the best results were obtained. Moreover, the reaction is likely to be promoted by coordination of the products to the catalyst. Similarly, 2,3,6-trimethylphenol and related compounds were converted to p-benzoquinones selectively with a CuCl2-poly(4-vinylpyridine) catalyst. These polymer-supported catalysts were readily recovered and are reusable without noticeable decrease of their activity.

  用CuCl2-聚(4-甲基-4'-乙烯基-2,2'-吡啶)催化剂与氧气氧化2,6-二取代4-甲基苯酚，得到了相应的4-羟基苯甲醛，高收率。催化剂的活性和产物的选择性显著依赖于反应条件和催化剂的组成。当聚合物配体的双吡啶单元与铜的摩尔比为1，即N/Cu = 2时，获得最佳结果。此外，反应可能通过产物与催化剂的配位得到促进。同样，2,3,6-三甲基苯酚及相关化合物在CuCl2-聚(4-乙烯基吡啶)催化剂的作用下选择性转化为对苯醌。这些聚合物支撑的催化剂容易回收，且在不显著降低活性的情况下可重复使用。
• A facile synthesis of 4-alkoxymethylphenols by a copper(II)-acetoxime catalyst/O2 system
  作者：Masao Shimizu、Yoshihito Watanabe、Hideo Orita、Takashi Hayakawa、Katsuomi Takehira

  DOI：10.1016/s0040-4039(00)78906-4

  日期：1991.4

  4-Alkoxymethyl-2,6-dimethylphenols were synthesized from 2,4,6-trimethylphenol in good yields by a copper(II) chloride-acetoxime catalyst/molecular oxygen system in alcohols at ambient temperature. The oxidation of the other p-methylsubstituted phenols were also examined.
• The Oxidation of 2,4,6-Trimethylphenol with Molecular Oxygen Catalyzed by a Copper(II)-Oxime or Copper(II)-Amine System.
  作者：Masao Shimizu、Yoshihito Watanabe、Hideo Orita、Takashi Hayakawa、Katsuomi Takehira

  DOI：10.1246/bcsj.66.251

  日期：——

  2,4,6-Trimethylphenol (1a) was selectively oxidized to 3,5-dimethyl-4-hydroxybenzaldehyde (2a) by molecular oxygen in the presence of a copper(II) chloride-oxime or copper(II) chloride-amine catalyst in alcohol at ambient temperature. When an acid was present in the catalyst system, the formation of both 2,6-dimethyl-p-benzoquinone (3) and a formaldehyde dialkyl acetal was accelerated. It is likely that 2a is produced by way of the formation of a quinonemethide intermediate, followed by a repeated 1,6-addition of alcohol on the intermediate to form a 4-(alkoxymethyl)-2,6-dimethylphenol (5a), and then 3,5-dimethyl-4-hydroxybenzaldehyde dialkyl acetal, which would be hydrolyzed to 2a. When the reaction time was shortened, 5a was isolated in good yield. Oxidations of the other p-methyl-substituted phenols were also examined using the present oxidation system.

  2,4,6-三甲基苯酚（1a）在铜（II）氯化物-肟或铜（II）氯化物-胺催化剂的存在下，利用分子氧在酒精中于室温下可选择性地氧化为3,5-二甲基-4-羟基苯甲醛（2a）。当催化剂体系中存在酸时，2,6-二甲基对苯醌（3）和甲醛二烷基缩醛的形成会加速。2a很可能是通过形成醌亚甲基中间体，随后在中间体上重复进行1,6-加成反应，生成4-（烷氧基甲基）-2,6-二甲基苯酚（5a），然后形成3,5-二甲基-4-羟基苯甲醛二烷基缩醛，最终水解为2a。当反应时间缩短时，5a可以高收率地分离出来。通过本氧化体系对其他对位甲基取代苯酚的氧化反应进行了研究。