methanesulfonic acid 2,3-bis-benzyloxy-propyl ester | 622407-55-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 甘油脂
• 英文名称: methanesulfonic acid 2,3-bis-benzyloxy-propyl ester
• 英文别名: 2,3-bis(phenylmethoxy)propyl methanesulfonate
• CAS: 622407-55-0
• 化学式: C₁₈H₂₂O₅S
• 分子量: 350.436
• InChiKey: NAGMVNJSDMHFMO-UHFFFAOYSA-N

物化性质

• 沸点：
  518.5±50.0 °C(Predicted)
• 密度：
  1.210±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.76
• 重原子数：
  24.0
• 可旋转键数：
  10.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  61.83
• 氢给体数：
  0.0
• 氢受体数：
  5.0

反应信息

• 作为反应物：
  描述：

  methanesulfonic acid 2,3-bis-benzyloxy-propyl ester 在 lithium aluminium tetrahydride 、 caesium carbonate 作用下， 以 四氢呋喃 、 丙酮 为溶剂， 反应 1.0h， 生成 [2,5-bis-(2,3-bis-benzyloxy-propoxy)-4-hydroxymethyl-phenyl]-methanol
  参考文献：
  名称：

  Binding of Tetramethylammonium to Polyether Side-Chained Aromatic Hosts. Evaluation of the Binding Contribution from Ether Oxygen Donors

  摘要：

  A set of macrocyclic and open-chain aromatic ligands endowed with polyether side chains has been prepared to assess the contribution of ether oxygen donors to the binding of tetramethylammonium (TMA), a cation believed incapable of interacting with oxygen donors. The open-chain hosts consisted of an aromatic binding site and side chains possessing a variable number of ether oxygen donors; the macrocyclic ligands were based on the structure of a previously investigated host, the dimeric cyclophane 1,4-xylylene-1,4-phenylene diacetate (DXPDA), implemented with polyether-type side chains in the backbone. Association to tetramethylammonium picrate (TMAP) was measured in CDCl3 at T = 296 K by H-1 NMR titrations. Results confirm that the main contribution to the binding of TMA comes from the cation-pi interaction established with the aromatic binding sites, but they unequivocally show that polyether chains participate with cooperative contributions, although of markedly smaller entity. Water is also bound, but the two guests interact with aromatic rings and oxygen donors in an essentially noncompetitive way. An improved procedure for the preparation of cyclophanic tetraester derivatives has been developed that conveniently recycles the oligomeric ester byproducts formed in the one-pot cyclization reaction. An alternative entry to benzylic diketones has also been provided that makes use of a low-order cyanocuprate reagent to prepare in fair yields a class of compounds otherwise uneasily accessible.

  DOI：

  10.1021/jo034905h
• 作为产物：
  描述：

  trans-2-Phenyl-1,3-dioxan-5-ol 在 lithium aluminium tetrahydride 、 三氯化铝 、 potassium tert-butylate 、 三乙胺 作用下， 以 乙醚 、 二氯甲烷 、 二甲基亚砜 、 甲苯 为溶剂， 反应 2.5h， 生成 methanesulfonic acid 2,3-bis-benzyloxy-propyl ester
  参考文献：
  名称：

  Binding of Tetramethylammonium to Polyether Side-Chained Aromatic Hosts. Evaluation of the Binding Contribution from Ether Oxygen Donors

  摘要：

  A set of macrocyclic and open-chain aromatic ligands endowed with polyether side chains has been prepared to assess the contribution of ether oxygen donors to the binding of tetramethylammonium (TMA), a cation believed incapable of interacting with oxygen donors. The open-chain hosts consisted of an aromatic binding site and side chains possessing a variable number of ether oxygen donors; the macrocyclic ligands were based on the structure of a previously investigated host, the dimeric cyclophane 1,4-xylylene-1,4-phenylene diacetate (DXPDA), implemented with polyether-type side chains in the backbone. Association to tetramethylammonium picrate (TMAP) was measured in CDCl3 at T = 296 K by H-1 NMR titrations. Results confirm that the main contribution to the binding of TMA comes from the cation-pi interaction established with the aromatic binding sites, but they unequivocally show that polyether chains participate with cooperative contributions, although of markedly smaller entity. Water is also bound, but the two guests interact with aromatic rings and oxygen donors in an essentially noncompetitive way. An improved procedure for the preparation of cyclophanic tetraester derivatives has been developed that conveniently recycles the oligomeric ester byproducts formed in the one-pot cyclization reaction. An alternative entry to benzylic diketones has also been provided that makes use of a low-order cyanocuprate reagent to prepare in fair yields a class of compounds otherwise uneasily accessible.

  DOI：

  10.1021/jo034905h