R_S-diacetone-D-glucosyl 2,4,6-triisopropylbenzenesulfinate

• 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: R_S-diacetone-D-glucosyl 2,4,6-triisopropylbenzenesulfinate
• 英文别名: [(3aR,5R,6S,6aR)-5-[(4R)-2,2-dimethyl-1,3-dioxolan-4-yl]-2,2-dimethyl-3a,5,6,6a-tetrahydrofuro[2,3-d][1,3]dioxol-6-yl] (S)-2,4,6-tri(propan-2-yl)benzenesulfinate
• 化学式: C₂₇H₄₂O₇S
• 分子量: 510.692
• InChiKey: QDSVRQUYMPCYOR-JFUSBMSJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  35
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  91.7
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为产物：
  描述：

  2,4,6-三异丙基苯磺酰氯 在 吡啶 、 氯化亚砜 、 锌 作用下， 以 水 为溶剂， 反应 4.5h， 生成 R_S-diacetone-D-glucosyl 2,4,6-triisopropylbenzenesulfinate
  参考文献：
  名称：

  Highly Diastereoselective Intermolecular β-Addition of Alkyl Radicals to Chiral 2-(Arylsulfinyl)-2-cycloalkenones

  摘要：

  The diastereoselectivity of intermolecular beta-addition of alkyl radicals to 2-(arylsulfinyl)-acycloalkenones depends largely upon the structure of the arylsulfinyl group. The reaction of a-cyclopentenones or 2-cyclohexenones having a sterically bulky arylsulfinyl group such as (3,5-di-tert-butyl-4-methoxyphenyl)-sulfinyl, (2,4,6-triisopropylphenyl)sulfinyl or (2,4,6-trimethylphenyl)-sulfinyl group gives 3-alkyl-2-(arylsulfinyl)-1-cyclopentanones or 3-alkyl-2-(arylsulfinyl)-1-cyclohexanones in excellent yields and with high diastereoselectivity. Both the X-ray crystallographic analysis and the NOE experiment in the H-1 NMR spectrum of (S)-2-[(2,4,6-triisopropylphenyl)-sulfinyl]- and (S)-2-[(2,4,6-trimethylphenyl)sulfinyl]-2-cyclopentenone reveal an effective shielding of one of the olefin faces at the beta-position by o-isopropyl and o-methyl groups. The addition of bidentate Lewis acids reverses the stereoselection through chelating the intermediates to give the addition products with high diastereoselectivity.

  DOI：

  10.1021/jo971093e

文献信息

• An improved and efficient procedure for the preparation of chiral sulfinates from sulfonyl chloride using triphenylphosphine
  作者：Yoshihiko Watanabe、Nobuyuki Mase、Moto-aki Tateyama、Takeshi Toru

  DOI：10.1016/s0957-4166(99)00066-x

  日期：1999.2

  An improved procedure of the Sharpless method for the preparation of chiral sulfinates by triphenylphosphine is described. A mixture of sulfonyl chlorides and diacetone-d-glucose or l-menthol in the presence of triethylamine was treated with triphenylphosphine in CH2Cl2 at 0°C to give the sulfinates in good yields.

  描述了通过三苯基膦制备手性亚磺酸盐的Sharpless方法的改进方法。在三乙胺存在下，将磺酰氯和双丙酮-d-葡萄糖或1-薄荷醇的混合物在0℃下在CH 2 Cl 2中用三苯基膦处理，以良好的产率得到亚磺酸盐。
• Highly Diastereoselective Intermolecular β-Addition of Alkyl Radicals to Chiral 2-(Arylsulfinyl)-2-cycloalkenones
  作者：Nobuyuki Mase、Yoshihiko Watanabe、Yoshio Ueno、Takeshi Toru

  DOI：10.1021/jo971093e

  日期：1997.10.1

  The diastereoselectivity of intermolecular beta-addition of alkyl radicals to 2-(arylsulfinyl)-acycloalkenones depends largely upon the structure of the arylsulfinyl group. The reaction of a-cyclopentenones or 2-cyclohexenones having a sterically bulky arylsulfinyl group such as (3,5-di-tert-butyl-4-methoxyphenyl)-sulfinyl, (2,4,6-triisopropylphenyl)sulfinyl or (2,4,6-trimethylphenyl)-sulfinyl group gives 3-alkyl-2-(arylsulfinyl)-1-cyclopentanones or 3-alkyl-2-(arylsulfinyl)-1-cyclohexanones in excellent yields and with high diastereoselectivity. Both the X-ray crystallographic analysis and the NOE experiment in the H-1 NMR spectrum of (S)-2-[(2,4,6-triisopropylphenyl)-sulfinyl]- and (S)-2-[(2,4,6-trimethylphenyl)sulfinyl]-2-cyclopentenone reveal an effective shielding of one of the olefin faces at the beta-position by o-isopropyl and o-methyl groups. The addition of bidentate Lewis acids reverses the stereoselection through chelating the intermediates to give the addition products with high diastereoselectivity.