ethyl (2R,3S)-3-azido-2-[tert-butyl(dimethyl)silyl]oxy-5-methylhexanoate | 428452-73-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: ethyl (2R,3S)-3-azido-2-[tert-butyl(dimethyl)silyl]oxy-5-methylhexanoate
• CAS: 428452-73-7
• 化学式: C₁₅H₃₁N₃O₃Si
• 分子量: 329.515
• InChiKey: PUFVDSQYJMCGEC-QWHCGFSZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.66
• 重原子数：
  22
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  49.9
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl (2R,3S)-3-azido-2-[tert-butyl(dimethyl)silyl]oxy-5-methylhexanoate 在 palladium on activated charcoal lithium hydroxide 、 氢氟酸 、 氢气 、 silver(I) acetate 、 氯甲酸乙酯 、 三乙胺 作用下， 以 四氢呋喃 、 乙醇 、 水 、 乙腈 为溶剂， 反应 33.5h， 生成 (3S,4S)-(-)-他汀
  参考文献：
  名称：

  Unusual Regioselection in the Mitsunobu Reactions of syn-2,3-Dihydroxy Esters:  Synthesis of Statine and Its Diastereomer

  摘要：

  Mitsunobu reactions of syn-2,3-dihydroxy esters exhibit a complete regioselection for the beta-hydroxyl group. Benzoylation, azidation, and tosylation have been performed under these conditions. beta-Functionalizations of syn-2,3-dihydroxy esters are uncommon, and the Mitsunobu reactions are complementary to other diol chemistries in the regioselection. In addition, the configurational inversion accompanying the Mitsunobu protocol offers a means for diastereochemical diversity, as exemplified by a synthesis of statine and its anti diastereomer. These findings will further expand the synthetic utilities of the Sharpless AD process.

  DOI：

  10.1021/jo015967f
• 作为产物：
  描述：

  5-甲基己基-2-丁烯酸乙酯 在 咪唑 、 AD-mix-α 、 sodium azide 、 甲基磺酰胺 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 水 、 N,N-二甲基甲酰胺 、 叔丁醇 为溶剂， 反应 239.0h， 生成 ethyl (2R,3S)-3-azido-2-[tert-butyl(dimethyl)silyl]oxy-5-methylhexanoate
  参考文献：
  名称：

  Unusual Regioselection in the Mitsunobu Reactions of syn-2,3-Dihydroxy Esters:  Synthesis of Statine and Its Diastereomer

  摘要：

  Mitsunobu reactions of syn-2,3-dihydroxy esters exhibit a complete regioselection for the beta-hydroxyl group. Benzoylation, azidation, and tosylation have been performed under these conditions. beta-Functionalizations of syn-2,3-dihydroxy esters are uncommon, and the Mitsunobu reactions are complementary to other diol chemistries in the regioselection. In addition, the configurational inversion accompanying the Mitsunobu protocol offers a means for diastereochemical diversity, as exemplified by a synthesis of statine and its anti diastereomer. These findings will further expand the synthetic utilities of the Sharpless AD process.

  DOI：

  10.1021/jo015967f

文献信息

• Unusual Regioselection in the Mitsunobu Reactions of <i>s</i><i>yn</i>-2,3-Dihydroxy Esters:  Synthesis of Statine and Its Diastereomer
  作者：Soo Y. Ko

  DOI：10.1021/jo015967f

  日期：2002.4.1

  Mitsunobu reactions of syn-2,3-dihydroxy esters exhibit a complete regioselection for the beta-hydroxyl group. Benzoylation, azidation, and tosylation have been performed under these conditions. beta-Functionalizations of syn-2,3-dihydroxy esters are uncommon, and the Mitsunobu reactions are complementary to other diol chemistries in the regioselection. In addition, the configurational inversion accompanying the Mitsunobu protocol offers a means for diastereochemical diversity, as exemplified by a synthesis of statine and its anti diastereomer. These findings will further expand the synthetic utilities of the Sharpless AD process.