2-(3,5-di-tert-butyl-4-hydroxyphenyl)-5-methylbenzoxazole | 29219-64-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: 2-(3,5-di-tert-butyl-4-hydroxyphenyl)-5-methylbenzoxazole
• 英文别名: 2-(3,5-di-t-butyl-4-hydroxyphenyl)-5-methylbenzoxazole；2,6-di-tert-butyl-4-(5-methylbenzo[d]oxazol-2-yl)phenol；2,6-di-tert-butyl-4-(5-methyl-benzooxazol-2-yl)-phenol；2,6-Ditert-butyl-4-(5-methyl-1,3-benzoxazol-2-yl)phenol；2,6-ditert-butyl-4-(5-methyl-1,3-benzoxazol-2-yl)phenol
• CAS: 29219-64-5
• 化学式: C₂₂H₂₇NO₂
• 分子量: 337.462
• InChiKey: PVXNLFDLDNDHJO-UHFFFAOYSA-N

物化性质

• 熔点：
  168-169 °C(Solv: methanol (67-56-1))
• 沸点：
  417.0±45.0 °C(Predicted)
• 密度：
  1.078±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  6.8
• 重原子数：
  25
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  46.3
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  2-硝基-4-甲苯酚 、 2,6-二叔丁基-4-甲基苯酚 在 铁粉 、 sulfur 作用下， 以 邻二氯苯 为溶剂， 反应 24.0h， 以72%的产率得到2-(3,5-di-tert-butyl-4-hydroxyphenyl)-5-methylbenzoxazole
  参考文献：
  名称：

  Redox-Neutral Iron–Sulfur Promoted Transformation of 2-Nitrophenols and 2,6-Disubstituted p-Cresols into 2-Arylbenzoxazoles

  摘要：

  A catalyst based on iron and elemental sulfur has been shown to efficiently promote a redox-neutral reaction between 2-nitrophenols and 2,6-disubstituted p-cresols, allowing for the preparation of 2-arylbenzoxazoles in good yields. This synthetic methodology also affords high atom economy without the use of any external oxidizing and/or reducing reagents. This is the first redox-condensation reaction of 2-nitrophenols with 2,6-disubstituted p-cresols.

  DOI：

  10.1055/s-0033-1338995

文献信息

• Studies on the synthesis and anti-inflammatory activity of 2,6-di-tert-butylphenols with a heterocyclic group at the 4-position. I.
  作者：YASUO ISOMURA、NORIKI ITO、HIROSHIGE HOMMA、TETSUSHI ABE、KAZUO KUBO

  DOI：10.1248/cpb.31.3168

  日期：——

  A number of 2, 6-di-tert-butylphenols with a heterocyclic group at the 4-position were prepared. The heterocyclic groups were as follows : benzoxazole, benzothiazole, benzimidazole, indole, imidazo [1, 2-a] pyridine and imidazo [1, 2-a] pyrimidine. Anti-inflammatory activity of these compounds was examined by using the adjuvant-induced arthritis (A. A) assay. Some compounds were further tested in carrageenin-induced rat paw edema (CIPE) assay and AcOH-induced writhing (AIW) assay in mice. The anti-inflammatory activity was greatly dependent on the value of the heterocyclic group. Among these compounds, 2-(3, 5-di-tert-butyl-4-hydroxyphenyl)-benzoxazole (IIa) and 2-(3, 5-di-tert-butyl-4-hydroxyphenyl) indole (Xg) showed very potent activity. Both IIa and Xg had a minimum effective dose of 5 mg/kg (p. o.) in A. A assay and showed stronger activity than phenylbutazone in CIPE assay but weaker analgesic activity than aminopyrine in AIW assay.

  制备了一系列在4位含有杂环基团的2,6-二叔丁基苯酚。这些杂环基团包括：苯并噁唑、苯并噻唑、苯并咪唑、吲哚、咪唑[1,2-a]喹啉和咪唑[1,2-a]嘧啶。这些化合物的抗炎活性通过佐剂诱导的关节炎（A.A）测定进行评估。部分化合物在卡拉胶诱导的大鼠足肿胀（CIPE）测定和醋酸诱导的小鼠扭动（AIW）测定中进一步测试。这些化合物的抗炎活性在很大程度上取决于杂环基团的性质。在这些化合物中，2-(3,5-二叔丁基-4-羟基苯基)苯并噁唑（IIa）和2-(3,5-二叔丁基-4-羟基苯基)吲哚（Xg）表现出非常强的活性。IIa和Xg在A.A测定中的最小有效剂量为5 mg/kg（口服），在CIPE测定中显示出比苯基布托松更强的活性，但在AIW测定中的镇痛活性则弱于氨基吡啶。
• Selective Oxidative Methyl C–H Functionalization of Butylated Hydroxytoluene toward Arylimines/<i>N</i>-Heterocycles
  作者：Jianyu Dong、Shaofeng Wu、Furong Geng、Yani Yan、Long Liu、Yongbo Zhou

  DOI：10.1021/acs.joc.3c01643

  日期：2023.10.20

  A metal-free and selective oxidative methyl C–H functionalization of BHT with aniline compounds has been developed. This innovative method enables the facile and efficient synthesis of a diverse array of BHT-functionalized N-containing skeletons, including arylamines, benzoxazoles, benzothiazoles, benzimidazoles, quinazolines, and quinazolinones, all of which are challenging to access. The control

  已经开发出一种无金属的苯胺化合物对 BHT 进行选择性氧化甲基 C-H 官能化的方法。这种创新方法能够轻松有效地合成多种 BHT 官能化含氮骨架，包括芳胺、苯并恶唑、苯并噻唑、苯并咪唑、喹唑啉和喹唑啉酮，所有这些都很难获得。涉及TEMP 18 O的对照实验表明TEMPO与BHT的苄基的自由基加合物可以作为中间体。
• ISOMURA, YASUO;ITO, NORIKI;HOMMA, HIROSHIGE;ABE, TETSUSHI;KUBO, KAZUO, CHEM. AND PHARM. BULL., 1983, 31, N 9, 3168-3178
  作者：ISOMURA, YASUO、ITO, NORIKI、HOMMA, HIROSHIGE、ABE, TETSUSHI、KUBO, KAZUO

  DOI：——

  日期：——
• Redox-Neutral Iron–Sulfur Promoted Transformation of 2-Nitrophenols and 2,6-Disubstituted p-Cresols into 2-Arylbenzoxazoles
  作者：Masahiko Saibara、Takumi Mizuno、Kazuhito Ashida、Kouji Satomi、Toshiyuki Iwai、Takeo Nakai、Masatoshi Mihara、Takatoshi Ito

  DOI：10.1055/s-0033-1338995

  日期：——

  A catalyst based on iron and elemental sulfur has been shown to efficiently promote a redox-neutral reaction between 2-nitrophenols and 2,6-disubstituted p-cresols, allowing for the preparation of 2-arylbenzoxazoles in good yields. This synthetic methodology also affords high atom economy without the use of any external oxidizing and/or reducing reagents. This is the first redox-condensation reaction of 2-nitrophenols with 2,6-disubstituted p-cresols.