isopropyl 2-O,5-C-methylene-α-D-glucopyranoside | 612841-72-2

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: isopropyl 2-O,5-C-methylene-α-D-glucopyranoside
• 英文别名: (1S,3S,4R,7S,8S)-1-(hydroxymethyl)-3-propan-2-yloxy-2,5-dioxabicyclo[2.2.2]octane-7,8-diol
• CAS: 612841-72-2
• 化学式: C₁₀H₁₈O₆
• 分子量: 234.249
• InChiKey: UKKVOJFENONGPY-ZJDVBMNYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -1.1
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  88.4
• 氢给体数：
  3
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  1,2,4,6-tetra-O-acetyl-3-O-benzyl-5-C-vinyl-β-D-glucopyranoside 在 吡啶 、 甲醇 、 4-二甲氨基吡啶 、 sodium tetrahydroborate 、 N-溴代丁二酰亚胺(NBS) 、 camphor-10-sulfonic acid 、 三氟化硼乙醚 、 氨 、 sodium 、 lithium 、 sodium hydride 、 臭氧 作用下， 以 四氢呋喃 、 乙醇 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 132.06h， 生成 isopropyl 2-O,5-C-methylene-α-D-glucopyranoside
  参考文献：
  名称：

  Synthesis and acid catalyzed hydrolysis of B2,5 type conformationally constrained glucopyranosides: incorporation into a cellobiose analogue

  摘要：

  Isopropyl and p-nitrophenyl alpha- and beta-D-glucopyranosides, restrained in a conformation close to B-2,B-5 via an oxymethylene bridge have been synthesized. These four glucopyranosides were found to be hydrolyzed at similar rates, close to those observed for the parent unconstrained glucosides. In such derivatives, either alpha or beta, the exocyclic cleaved bond is synperiplanar to an endocyclic oxygen lone pair. This conformationally locked glucopyranosyl moiety was also incorporated into a disaccharide, affording a conformationally restrained cellobiose analogue which was assayed against various glycosidases. (C) 2004 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2004.06.009

文献信息

• Synthesis of B2,5 type conformationally constrained glucopyranosides
  作者：Yves Blériot、Subramanian K Vadivel、Ian R Greig、Anthony J Kirby、Pierre Sinaÿ

  DOI：10.1016/s0040-4039(03)01631-9

  日期：2003.8

  Isopropyl and p-nitrophenyl alpha- and beta-D-glucopyranosides restrained in a conformation close to B-2,B-5 have been synthesized. They are all hydrolyzed at similar rates, close to those observed for the parent unlocked glucosides. (C) 2003 Elsevier Ltd. All rights reserved.