3-methyl-2-phenylbutane-1,2-diol | 51559-18-3

• 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: 3-methyl-2-phenylbutane-1,2-diol
• 英文别名: (2R)-3-methyl-2-phenylbutane-1,2-diol
• CAS: 51559-18-3
• 化学式: C₁₁H₁₆O₂
• 分子量: 180.247
• InChiKey: HEYRHDCXPZCMNV-LLVKDONJSA-N

物化性质

• 沸点：
  319.2±22.0 °C(Predicted)
• 密度：
  1.072±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (1S,2R,3S,5R,2'S)-6,6-dimethyl-3-(2'-ethoxy-1'-phenyl-1'-oxo-2'-ethylsulfanyl)-2-(O-t-butyl-dimethylsilyl-hydroxymethyl)-bicyclo[3.1.1]heptane 在 N-氯代丁二酰亚胺 、 silver nitrate 作用下， 生成 3-methyl-2-phenylbutane-1,2-diol
  参考文献：
  名称：

  New S,O-acetals from (1R)-(−)-myrtenal as chiral auxiliaries in nucleophilic additions

  摘要：

  Treatment of hydroxythiol 4 with alpha,alpha-diethoxyacetophenone at room temperature yielded a mixture of epimeric S,O-acetals 6 and 7 (1:4. 92%, yield), which were efficiently separated by flash chromatography. The OTBS derivatives 8 and 9 were treated with several Grignard reagents to afford carbinols 10 and 13 respectively (85-99%, yield, >95% dr). After successive hydrolysis and reduction of 10 and 13 it is possible to obtain either enantiomer of diols 16 in high optical purity (>95% er). (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2004.01.046

文献信息

• Electronic polarizability-based stereochemical model for Sharpless AD reactions
  作者：Peng Han、Ruji Wang、David Zhigang Wang

  DOI：10.1016/j.tet.2011.09.073

  日期：2011.11

  controlling absolute stereochemical courses of general asymmetric induction events. Thus, a sensitive dependence of the sense of chiral induction on an alkene substrate’s substituent electronic polarizability character was uncovered from a range of structurally highly comparable Sharpless asymmetric dihydroxylation (AD) systems, from which a new polarizability-based stereochemical model of predictive power

  柔软确实是力量！此处报道的是电子极化率（即柔软度）效应在控制一般不对称诱导事件的绝对立体化学过程中的关键但长期被忽视的作用。因此，从一系列结构上高度可比的Sharpless不对称二羟基化（AD）系统中发现了手性诱导感对烯烃底物的取代基电子极化率特征的敏感依赖性，从中提出了基于极化率的基于立体化学的新预测能力模型。
• Camphor-derived 2-stannyl-N-Boc-1,3-oxazolidine: A new chiral formylanion equivalent for the asymmetric synthesis of 1,2-diols
  作者：Lino Colombo、Marcello Di Giacomo、Gloria Brusotti、Ettore Milano

  DOI：10.1016/0040-4039(95)00369-n

  日期：1995.4

  3-oxazolidine 6, prepared from the camphor-derived aminoalcohol 5, was converted to diastereomerically pure 2-acyl derivatives 8 in three steps. Reaction of these ketones with Grignard reagents at −78°C proceeded with high stereoselectivity affording tertiary carbinols which gave 1,2-diols with >96% ee after hydrolysis and reduction of the intermediate α-hydroxy aldehydes. A new deblocking procedure of the

  由樟脑衍生的氨基醇5制备的光学纯的2-三丁基锡烷基-N-Boc-1,3-恶唑烷6经三步转化为非对映体纯的2-酰基衍生物8。这些酮与格氏试剂在-78℃下的反应以高的立体选择性进行，得到叔甲醇，其在水解和还原中间的α-羟基醛后，得到具有> 96％ee的1,2-二醇。还描述了t-Boc组的新解块过程。
• Ligand-Dependent Reversal of Facial Selectivity in the Asymmetric Dihydroxylation
  作者：Koen P. M. Vanhessche、K. Barry Sharpless

  DOI：10.1021/jo961189t

  日期：1996.11.15