2,2-dimethyl-1-(4-methylphenyl)propan-1-ol | 6013-94-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,2-dimethyl-1-(4-methylphenyl)propan-1-ol
• 英文别名: (+/-)-2,2-dimethyl-1-p-tolylpropan-1-ol
• CAS: 6013-94-1
• 化学式: C₁₂H₁₈O
• mdl: MFCD12153736
• 分子量: 178.274
• InChiKey: IPMLKFCCZQQKIS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2,2-dimethyl-1-(4-methylphenyl)propan-1-ol 在 三溴化磷 作用下， 生成 1-tert-butyl-1-(4-methylphenyl)methyl bromide
  参考文献：
  名称：

  Solvolysis of 1-Aryl-1-tert-butylmethyl Bromides. Hammett-Type Correlation Analysis and RevisedY_BnBrScale

  摘要：

  AbstractThe solvolysis of a series of 1‐aryl‐1‐tert‐butylmethyl bromides (1a–1g) in a variety of solvents were carried out. Linear relationships were observed from Hammett‐type analysis of logarithm of rate constants using single‐parameter Brown‐Okamoto equation (Eqn. 1) and dual‐parameter Yukawa‐Tsuno equation (Eqn. 2), respectively. The ρ values and the γ values were found to depend mainly on the range of substituents and not the type of solvents employed. The observation of an upward deviation for the data points of strongly deactivating substrates 1f and 1g could be interpreted by an electrophilic acceleration owing to the solvation of leaving group. It is likely an additional example of overshadowed solvent effect in the dual‐parameter treatment of rate data. Moreover, the variation of γ values was found contradicting the general consideration of resonance contribution. The observed excellent linear correlations with YBnBr and the good solubility in aqueous solution with high percentage of water made 1c a better reference standard than 2‐bromo‐2‐(4‐trifluormethyl)adamantane (3) for obtaining revised and extended YBnBr values. Correlation analysis using the single‐parameter Grunwald‐Winstein equation (Eqn. 3) with YBnBr was found to be superior over the dual‐parameter equation containing YBr and I (Eqn. 5).

  DOI：

  10.1002/jccs.199900107
• 作为产物：
  描述：

  2,2-二甲基-1-(4-甲基苯基)丙-1-酮 在 sodium tetrahydroborate 作用下， 以 乙醇 为溶剂， 生成 2,2-dimethyl-1-(4-methylphenyl)propan-1-ol
  参考文献：
  名称：

  替代效应。22. α-t-丁基苄基甲苯磺酸盐的溶剂分解

  摘要：

  在 80% 的丙酮水溶液 (80A) 和 80% 的乙醇水溶液 (80E) 中测定了甲苯磺酸 α-叔丁基苄基酯的溶剂分解速率，以获得一系列扩展的取代基。根据 Yukawa-Tsuno LArSR 关系，取代基效应可以线性相关，80A 中的 ρ 值分别为 -5.542 和 1.093，80E 中的 ρ 值分别为 -5.650 和 1.106。大的负 ρ 和升高的 r 值表明 kc 机制在没有亲核溶剂辅助和甲基参与的情况下在这种溶剂分解中起作用。从取代基效应的比较来看，在 α-甲基苄基氯的溶剂分解中观察到的 1.15 的升高 r 值可归因于二级苄基系统增强的共振需求特征，而不是由 SN1-SN2 引起的非线性引起的相关伪影机械变化。

  DOI：

  10.1246/bcsj.63.856

文献信息

• SUBSTITUTED ARYLCYCLOPENTENES AS THERAPEUTIC AGENTS
  申请人：Donde Yariv

  公开号：US20090270387A1

  公开（公告）日：2009-10-29

  Compounds comprising or a pharmaceutically acceptable salt or a prodrug thereof, are disclosed, wherein Y, A, and B are as described. Methods, compositions, and medicaments related thereto are also disclosed.

  包含Y、A和B的化合物或其药用盐或前药的方法、组合物和药物也被揭示。
• THERAPEUTIC SUBSTITUTED HYDANTOINS, AND RELATED COMPOUNDS
  申请人：Old David W.

  公开号：US20090281101A1

  公开（公告）日：2009-11-12

  Compounds comprising a structure or a pharmaceutically acceptable salt thereof, or a prodrug thereof; wherein a dashed line represents the presence or absence of a bond are disclosed, wherein Y, A, B, and J are as described. Methods, compositions, and medicaments related thereto are also disclosed.

  本文披露了包括一种结构或其药用可接受盐，或其前药的化合物；其中虚线表示键的存在或不存在，其中Y、A、B和J如所述。还披露了与之相关的方法、组合物和药物。
• Substituent Effects. 22. The Solvolysis of α-<i>t</i>-Butylbenzyl Tosylates
  作者：Yutaka Tsuji、Mizue Fujio、Yuho Tsuno

  DOI：10.1246/bcsj.63.856

  日期：1990.3

  r values suggest the operation of the kc mechanism in this solvolysis without nucleophilic solvent assistance and methyl participation. From a comparison of the substituent effects, the exalted r value of 1.15 observed in the solvolysis of α-methylbenzyl chlorides can be attributed to the enhanced resonance demand characteristic of secondary benzylic system rather than to a correlational artifact arising

  在 80% 的丙酮水溶液 (80A) 和 80% 的乙醇水溶液 (80E) 中测定了甲苯磺酸 α-叔丁基苄基酯的溶剂分解速率，以获得一系列扩展的取代基。根据 Yukawa-Tsuno LArSR 关系，取代基效应可以线性相关，80A 中的 ρ 值分别为 -5.542 和 1.093，80E 中的 ρ 值分别为 -5.650 和 1.106。大的负 ρ 和升高的 r 值表明 kc 机制在没有亲核溶剂辅助和甲基参与的情况下在这种溶剂分解中起作用。从取代基效应的比较来看，在 α-甲基苄基氯的溶剂分解中观察到的 1.15 的升高 r 值可归因于二级苄基系统增强的共振需求特征，而不是由 SN1-SN2 引起的非线性引起的相关伪影机械变化。
• Reductive lithiation of arylalkyl methyl ethers
  作者：Ugo Azzena、Simonetta Carta、Giovanni Melloni、Alessandra Sechi

  DOI：10.1016/s0040-4020(97)10080-1

  日期：1997.11

  We have investigated the reductive cleavage of arylalkyl methyl ethers with an excess of lithium metal and a catalytic amount of naphthalene. The reaction proceeds regioselectively in the presence of various substituents on the aromatic ring, allowing access to a wide array of arylalkyl lithium derivatives, some of which are not easily accessible by conventional methods.

  我们已经研究了芳基烷基甲基醚与过量的锂金属和催化量的萘的还原裂解。该反应在芳族环上存在各种取代基的情况下区域选择性地进行，从而允许获得各种各样的芳基烷基锂衍生物，其中某些不易通过常规方法获得。
• Chemoselective Oxidation by Electronically Tuned Nitroxyl Radical Catalysts
  作者：Shohei Hamada、Takumi Furuta、Yoshiyuki Wada、Takeo Kawabata

  DOI：10.1002/anie.201302261

  日期：2013.7.29

  Electronic tuning: Nitroxyl radical 1 is shown to be an efficient catalyst for the oxidation of secondary alcohols, and promotes oxidation through an oxoammonium species which is highly reactive because of the adjacent electron‐withdrawing ester groups. Chemoselective oxidation of benzylic alcohols in the presence of aliphatic alcohols is observed and is proposed to proceed by a rate‐determining hydride

  电子调谐：硝基1自由基是仲醇氧化的有效催化剂，并通过氧铵盐类促进氧化，该氧铵盐类由于相邻的吸电子酯基团而具有很高的反应性。可以观察到在脂肪族醇存在下苄醇的化学选择性氧化，并建议通过决定氢化物转移的速率进行。