2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-cyclohexyloxycarbonyloxy-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester | 228873-35-6

• 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: 2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-cyclohexyloxycarbonyloxy-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester
• 英文别名: [(2R,3R,4S,5R,6S)-6-cyclohexyloxycarbonyloxy-3,4,5-tris(2,2-dimethylpropanoyloxy)oxan-2-yl]methyl 2,2-dimethylpropanoate
• CAS: 228873-35-6
• 化学式: C₃₃H₅₄O₁₂
• 分子量: 642.785
• InChiKey: CCBPTAUUZXNWDX-SJSRKZJXSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.4
• 重原子数：
  45
• 可旋转键数：
  17
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  150
• 氢给体数：
  0
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-cyclohexyloxycarbonyloxy-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester 在 三氟甲磺酸三甲基硅酯 作用下， 以 二氯甲烷 为溶剂， 反应 1.2h， 生成 pivaloyl(-2)[pivaloyl(-3)][pivaloyl(-4)][pivaloyl(-6)]Glc(b)-O-cHex 、 2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-cyclohexyloxy-3,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-4-yl ester
  参考文献：
  名称：

  An efficient synthesis of mixed β-carbonates of acyl-protected sugar and their decarboxylative glycosidation promoted by trimethylsilyl trifluoromethanesulfonate

  摘要：

  Mixed beta-carbonates of acyl-protected sugar are stereoselectively prepared by using an N-succinimidyl group for activation of the acceptor alcohol carbonate. The glycosyl carbonates are smoothly decarboxylated by trimethylsilyl trifluoromethanesulfonate (Me3SiOTf) to give beta-glycosides preferentially in high yields. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(99)00843-6
• 作为产物：
  描述：

  环己醇 、 alkaline earth salt of/the/ methylsulfuric acid 在 potassium carbonate 、 三乙胺 作用下， 以 甲苯 、 乙腈 为溶剂， 反应 20.0h， 生成 2,2-Dimethyl-propionic acid (2S,3R,4S,5R,6R)-2-cyclohexyloxycarbonyloxy-4,5-bis-(2,2-dimethyl-propionyloxy)-6-(2,2-dimethyl-propionyloxymethyl)-tetrahydro-pyran-3-yl ester
  参考文献：
  名称：

  An efficient synthesis of mixed β-carbonates of acyl-protected sugar and their decarboxylative glycosidation promoted by trimethylsilyl trifluoromethanesulfonate

  摘要：

  Mixed beta-carbonates of acyl-protected sugar are stereoselectively prepared by using an N-succinimidyl group for activation of the acceptor alcohol carbonate. The glycosyl carbonates are smoothly decarboxylated by trimethylsilyl trifluoromethanesulfonate (Me3SiOTf) to give beta-glycosides preferentially in high yields. (C) 1999 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4039(99)00843-6

文献信息

• An efficient synthesis of mixed β-carbonates of acyl-protected sugar and their decarboxylative glycosidation promoted by trimethylsilyl trifluoromethanesulfonate
  作者：Isao Azumaya、Toshihiro Niwa、Masaomi Kotani、Takamasa Iimori、Shiro Ikegami

  DOI：10.1016/s0040-4039(99)00843-6

  日期：1999.6

  Mixed beta-carbonates of acyl-protected sugar are stereoselectively prepared by using an N-succinimidyl group for activation of the acceptor alcohol carbonate. The glycosyl carbonates are smoothly decarboxylated by trimethylsilyl trifluoromethanesulfonate (Me3SiOTf) to give beta-glycosides preferentially in high yields. (C) 1999 Elsevier Science Ltd. All rights reserved.