ethyl N-[(1S,2S,6S)-2-[tert-butyl(dimethyl)silyl]-6-hydroxycyclohex-3-en-1-yl]carbamate | 256942-76-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: ethyl N-[(1S,2S,6S)-2-[tert-butyl(dimethyl)silyl]-6-hydroxycyclohex-3-en-1-yl]carbamate
• CAS: 256942-76-4
• 化学式: C₁₅H₂₉NO₃Si
• 分子量: 299.486
• InChiKey: JLESTFLKQPSOOM-AVGNSLFASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.8
• 拓扑面积：
  58.6
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,2-二甲氧基丙烷 、 ethyl N-[(1S,2S,6S)-2-[tert-butyl(dimethyl)silyl]-6-hydroxycyclohex-3-en-1-yl]carbamate 在 对甲苯磺酸 作用下， 以 苯 为溶剂， 反应 0.75h， 以80%的产率得到(3aS,4S,7aS)-4-(tert-Butyl-dimethyl-silanyl)-2,2-dimethyl-3a,4,7,7a-tetrahydro-benzooxazole-3-carboxylic acid ethyl ester
  参考文献：
  名称：

  Desymmetrization of Cyclohexadienylsilanes. Regio-, Diastereo-, and Enantioselective Access to Sugar Mimics

  摘要：

  Desymmetrization of cyclohexadienylsilanes available from Birch reduction of the corresponding arylsilanes is efficiently carried out using Sharpless asymmetric dihydroxylation and aminohydroxylation. Complete diastereocontrol and reasonable enantiocontrol have been attained during the preparation of the desired diols. An excellent regiocontrol has also been observed during aminohydroxylation of dienylsilanol 6b. The resulting diol 8 and hydroxycarbamate 27 have then been elaborated further, offering a straightforward access to various types of cyclitols, aminocyclitols, carbasugars, as well as the antibiotic palitantine 4. The complete functionalization of the original arylsilanes 5 is thus typically achieved in fewer than eight steps with high stereoselectivities and excellent overall yield.

  DOI：

  10.1021/jo991225z
• 作为产物：
  描述：

  二甲基苯基(叔丁基)硅烷 在 sodium hydroxide 、 (8a,9R,8′′′a,9′′′R)-9,9′-[(2,5-diphenylpyrimidine-4,6-diyl)bis(oxy)]bis(6′-methoxy-10,11-dihydrocinchonan) 、 potassium dioxotetrahydroxoosmate(VI) 、 次氯酸叔丁酯 、 氨 、 lithium 、 叔丁醇 作用下， 以 四氢呋喃 、 丙醇 、 水 为溶剂， 反应 4.0h， 生成 ethyl N-[(1S,2S,6S)-2-[tert-butyl(dimethyl)silyl]-6-hydroxycyclohex-3-en-1-yl]carbamate
  参考文献：
  名称：

  Desymmetrization of Cyclohexadienylsilanes. Regio-, Diastereo-, and Enantioselective Access to Sugar Mimics

  摘要：

  Desymmetrization of cyclohexadienylsilanes available from Birch reduction of the corresponding arylsilanes is efficiently carried out using Sharpless asymmetric dihydroxylation and aminohydroxylation. Complete diastereocontrol and reasonable enantiocontrol have been attained during the preparation of the desired diols. An excellent regiocontrol has also been observed during aminohydroxylation of dienylsilanol 6b. The resulting diol 8 and hydroxycarbamate 27 have then been elaborated further, offering a straightforward access to various types of cyclitols, aminocyclitols, carbasugars, as well as the antibiotic palitantine 4. The complete functionalization of the original arylsilanes 5 is thus typically achieved in fewer than eight steps with high stereoselectivities and excellent overall yield.

  DOI：

  10.1021/jo991225z

文献信息

• Desymmetrization of Cyclohexadienylsilanes. Regio-, Diastereo-, and Enantioselective Access to Sugar Mimics
  作者：Rémy Angelaud、Odile Babot、Trevor Charvat、Yannick Landais

  DOI：10.1021/jo991225z

  日期：1999.12.1

  Desymmetrization of cyclohexadienylsilanes available from Birch reduction of the corresponding arylsilanes is efficiently carried out using Sharpless asymmetric dihydroxylation and aminohydroxylation. Complete diastereocontrol and reasonable enantiocontrol have been attained during the preparation of the desired diols. An excellent regiocontrol has also been observed during aminohydroxylation of dienylsilanol 6b. The resulting diol 8 and hydroxycarbamate 27 have then been elaborated further, offering a straightforward access to various types of cyclitols, aminocyclitols, carbasugars, as well as the antibiotic palitantine 4. The complete functionalization of the original arylsilanes 5 is thus typically achieved in fewer than eight steps with high stereoselectivities and excellent overall yield.