3,4,6-tri-O-benzyl-D-glucitol | 61008-72-8

• 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: 3,4,6-tri-O-benzyl-D-glucitol
• 英文别名: 3,4,6-Tri-O-benzyl-D-glucit；(2S,3R,4R,5R)-3,4,6-tris(phenylmethoxy)hexane-1,2,5-triol
• CAS: 61008-72-8
• 化学式: C₂₇H₃₂O₆
• 分子量: 452.547
• InChiKey: FQEGCVXQDYKNAJ-FICKONGGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  33
• 可旋转键数：
  14
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  88.4
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3,4,6-tri-O-benzyl-D-glucitol 在 吡啶 、 咪唑 、 4-二甲氨基吡啶 、 sodium chlorite 、 硼烷四氢呋喃络合物 、 草酰氯 、 1-氯-N,N,2-三甲基丙烯胺 、 3 A molecular sieve 、 硫酸 、 氨基磺酸 、 二甲基亚砜 、 三乙胺 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 41.92h， 生成 benzyl 2-[(16R)-16-[(2R,3S,4S,5R)-5-[tert-butyl(dimethyl)silyl]oxy-3,4,6-tris(phenylmethoxy)-2-(trifluoromethylsulfonyloxy)hexanoyl]oxyheptadecyl]-6-phenylmethoxybenzoate
  参考文献：
  名称：

  Total Synthesis of Caloporoside

  摘要：

  The first total synthesis of the fungal metabolite caloporoside 1, a strong and selective inhibitor of phospholipase C, is described. Both sugar units of its complex disaccharidic segment were obtained from 3,4,6-tri-O-benzyl-D-glucopyranose 14 as a common building block, with D-gluco-->D-manno inversions as the key strategic elements. This particular substitution reaction occurred readily on the acyclic segment (27-->28), whereas ultrasonication was required to override adverse stereoelectronic effects upon formation of beta-D-mannopyranoside unit 34. The (16R)-hydroxyheptadecylsalicylic acid part of 1 was efficiently prepared by a palladium-catalyzed Suzuki cross coupling reaction of aryltriflate 7 with the 9-alkyl-9-BBN derivative formed from alkene 6 and 9-H-9-BBN.

  DOI：

  10.1021/jo9800098
• 作为产物：
  描述：

  3,4,6-tri-O-benzyl-D-glucopyranose 在 sodium tetrahydroborate 作用下， 以 四氢呋喃 、 溶剂黄146 为溶剂， 反应 2.0h， 以96%的产率得到3,4,6-tri-O-benzyl-D-glucitol
  参考文献：
  名称：

  Total Synthesis of Caloporoside

  摘要：

  The first total synthesis of the fungal metabolite caloporoside 1, a strong and selective inhibitor of phospholipase C, is described. Both sugar units of its complex disaccharidic segment were obtained from 3,4,6-tri-O-benzyl-D-glucopyranose 14 as a common building block, with D-gluco-->D-manno inversions as the key strategic elements. This particular substitution reaction occurred readily on the acyclic segment (27-->28), whereas ultrasonication was required to override adverse stereoelectronic effects upon formation of beta-D-mannopyranoside unit 34. The (16R)-hydroxyheptadecylsalicylic acid part of 1 was efficiently prepared by a palladium-catalyzed Suzuki cross coupling reaction of aryltriflate 7 with the 9-alkyl-9-BBN derivative formed from alkene 6 and 9-H-9-BBN.

  DOI：

  10.1021/jo9800098

文献信息

• Three Solvent-Free Catalytic Approaches to the Acetal Functionalization of Carbohydrates and Their Applicability to One-Pot Generation of Orthogonally Protected Building Blocks
  作者：Serena Traboni、Emiliano Bedini、Maddalena Giordano、Alfonso Iadonisi

  DOI：10.1002/adsc.201500745

  日期：2015.11.16

  alternative protocols were developed to carry out the selective installation of acetal groups on carbohydrates and polyols under mildly acidic, solvent-free conditions. One protocol is based on a diol/aldehyde condensation at room temperature, with an acetolysis process serving for the activation of the carbonyl component. A second approach is based on an orthoester-mediated activation of the carbonyl component

  开发了三种替代方案，以在弱酸性，无溶剂的条件下选择性地将缩醛基团安装在碳水化合物和多元醇上。一种方案是基于在室温下的二醇/醛缩合，其中乙酰解过程用于活化羰基组分。第二种方法是基于在高温下原酸酯介导的羰基组分的活化。第三方案相反是要求一种转缩醛化机制。这些方法的结合使得可以在非常简单的实验条件下，在空气中短时间内访问各种缩醛保护的构建基块。
• Total Synthesis of Caloporoside
  作者：Alois Fürstner、Ingo Konetzki

  DOI：10.1021/jo9800098

  日期：1998.5.1

  The first total synthesis of the fungal metabolite caloporoside 1, a strong and selective inhibitor of phospholipase C, is described. Both sugar units of its complex disaccharidic segment were obtained from 3,4,6-tri-O-benzyl-D-glucopyranose 14 as a common building block, with D-gluco-->D-manno inversions as the key strategic elements. This particular substitution reaction occurred readily on the acyclic segment (27-->28), whereas ultrasonication was required to override adverse stereoelectronic effects upon formation of beta-D-mannopyranoside unit 34. The (16R)-hydroxyheptadecylsalicylic acid part of 1 was efficiently prepared by a palladium-catalyzed Suzuki cross coupling reaction of aryltriflate 7 with the 9-alkyl-9-BBN derivative formed from alkene 6 and 9-H-9-BBN.