1,1-dimesityl-1-ethanol | 166103-83-9

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: 1,1-dimesityl-1-ethanol
• 英文别名: 1,1-Dimesitylethanol；1,1-Bis(2,4,6-trimethylphenyl)ethanol
• CAS: 166103-83-9
• 化学式: C₂₀H₂₆O
• 分子量: 282.426
• InChiKey: IEIWSYLJWCBKRO-UHFFFAOYSA-N

物化性质

• 沸点：
  414.5±14.0 °C(Predicted)
• 密度：
  1.003±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.1
• 重原子数：
  21
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 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：

  1,1-dimesityl-1-ethanol 在 盐酸 作用下， 以 四氢呋喃 为溶剂， 以74%的产率得到1,1-Dimesitylethylene
  参考文献：
  名称：

  Ortho Methyl Group Effects in Cumyl Systems

  摘要：

  In an attempt to evaluate the steric effect of ortho methyl groups on the stability of the cumyl radical, 2,2',4,4',6,6'-hexamethylazocumene (6) was synthesized and its rate of decomposition was measured. The fact that 6 decomposes 40 times faster than azocumene is attributed to a ground state steric effect. Calculations on the mesitylcumyl radical 1 and cation 2 show both systems to be substantially nonplanar with dihedral angles of 48 degrees and 35 degrees, respectively. Calculated charge distributions for cation 2 corroborate previously obtained NMR results which showed substantial loss of charge delocalization.(1)

  DOI：

  10.1021/jo00121a057
• 作为产物：
  描述：

  2,2’,4,4’,6,6’-六甲基二苯甲酮 、 甲基锂 以 正己烷 为溶剂， 反应 2.0h， 以65%的产率得到1,1-dimesityl-1-ethanol
  参考文献：
  名称：

  Ortho Methyl Group Effects in Cumyl Systems

  摘要：

  In an attempt to evaluate the steric effect of ortho methyl groups on the stability of the cumyl radical, 2,2',4,4',6,6'-hexamethylazocumene (6) was synthesized and its rate of decomposition was measured. The fact that 6 decomposes 40 times faster than azocumene is attributed to a ground state steric effect. Calculations on the mesitylcumyl radical 1 and cation 2 show both systems to be substantially nonplanar with dihedral angles of 48 degrees and 35 degrees, respectively. Calculated charge distributions for cation 2 corroborate previously obtained NMR results which showed substantial loss of charge delocalization.(1)

  DOI：

  10.1021/jo00121a057

文献信息

• Conformational Studies by Dynamic NMR. 83.¹ Correlated Enantiomerization Pathways for the Stereolabile Propeller Antipodes of Dimesityl Substituted Ethanol and Ethers
  作者：Stefano Grilli、Lodovico Lunazzi、Andrea Mazzanti

  DOI：10.1021/jo010420m

  日期：2001.8.1

  produced good agreement between the computed and experimental barrier for a correlated dynamic process where a disrotatory one-ring flip pathway reverses the helicity of the conformational enantiomers. Introduction of a configurationally stable chiral center allowed two distinct NMR spectra to be detected at appropriate low temperature for two stereolabile diastereoisomers.

  在-100摄氏度以下，乙醇和各种醚的二甲苯乙烯衍生物的NMR光谱揭示了由于围绕Ar-C键的旋转受限制，这些分子以M和P螺旋桨状立体不稳定对映体的形式存在。一种这样的衍生物的单晶X射线衍射证实存在两叶片螺旋桨结构。NMR线形的计算机分析允许确定对映异构化过程的障碍。相互转换电路的理论模型（分子力学）在相关动态过程的计算和实验壁垒之间产生了良好的一致性，其中可旋转的单环翻转路径使构象对映体的螺旋度逆转。
• CHEMICALLY AMPLIFIED RESIST MATERIAL, PATTERN-FORMING METHOD, COMPOUND, AND PRODUCTION METHOD OF COMPOUND
  申请人：OSAKA UNIVERSITY

  公开号：EP3133444A1

  公开（公告）日：2017-02-22

  A chemically amplified resist material of the present invention is used in a process including: patternwise exposing a predetermined region of resist material film to ionizing radiation or nonionizing radiation; floodwise exposing the resist material film patternwise exposed to nonionizing radiation; baking the resist material film floodwise exposed; and developing resist material film to form a resist pattern, the chemically amplified resist material containing: (1) base component; and (2) a component that is capable of generating a radiation-sensitive sensitizer and an acid upon an exposure, wherein the component (2) contains, among (a) a radiation-sensitive acid-and-sensitizer generating agent, (b) a radiation-sensitive sensitizer generating agent, and (c) a radiation-sensitive acid generating agent: the components (a) and (b); the components (b) and (c); or all of the components (a) to (c), and wherein the component (b) contains a compound represented by formula (A).

  本发明的一种化学放大抗蚀剂材料用于一种工艺中，该工艺包括：将抗蚀剂材料薄膜的预定区域图案化暴露于电离辐射或非电离辐射中；将抗蚀剂材料薄膜图案化暴露于非电离辐射中；烘烤被图案化暴露的抗蚀剂材料薄膜；显影抗蚀剂材料薄膜以形成抗蚀剂图案，该化学放大抗蚀剂材料包含：(1)碱成分；和(2)能在曝光时生成辐射敏感敏化剂和酸的成分，其中成分(2)包含(a)辐射敏感酸和敏化剂生成剂，(b)辐射敏感敏化剂生成剂，和(c)辐射敏感酸生成剂：组分 (a) 和 (b)；组分 (b) 和 (c)；或组分 (a) 至 (c) 的全部，其中组分 (b) 包含式 (A) 所代表的化合物。
• Ortho Methyl Group Effects in Cumyl Systems
  作者：Jack W. Timberlake、Dawei Pan、Jane Murray、Branko S. Jursic、Tonghua Chen

  DOI：10.1021/jo00121a057

  日期：1995.8

  In an attempt to evaluate the steric effect of ortho methyl groups on the stability of the cumyl radical, 2,2',4,4',6,6'-hexamethylazocumene (6) was synthesized and its rate of decomposition was measured. The fact that 6 decomposes 40 times faster than azocumene is attributed to a ground state steric effect. Calculations on the mesitylcumyl radical 1 and cation 2 show both systems to be substantially nonplanar with dihedral angles of 48 degrees and 35 degrees, respectively. Calculated charge distributions for cation 2 corroborate previously obtained NMR results which showed substantial loss of charge delocalization.(1)