benzyl 2,3,4-tri-O-benzyl-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-α-D-galactopyranoside | 141118-10-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: benzyl 2,3,4-tri-O-benzyl-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-α-D-galactopyranoside
• 英文别名: (2S,3R,4S,5S,6R)-2,3,4,5-tetrakis(phenylmethoxy)-6-[[(2S,3S,4S,5R,6R)-3,4,5-tris(phenylmethoxy)-6-(phenylmethoxymethyl)oxan-2-yl]oxymethyl]oxane
• CAS: 141118-10-7
• 化学式: C₆₈H₇₀O₁₁
• 分子量: 1063.3
• InChiKey: VFMOICMXCOZMPY-VEKKUSJWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  12.4
• 重原子数：
  79.0
• 可旋转键数：
  28.0
• 环数：
  10.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  101.53
• 氢给体数：
  0.0
• 氢受体数：
  11.0

反应信息

• 作为产物：
  描述：

  2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl (benzyl 2,3,4-tri-O-benzyl-α-D-galactopyranosid)uronate 在 四甲基硫脲 、 W-2 Raney nickel 、 2,4-双(4-苯氧苯基)-1,3-二硫杂-2,4-二磷杂环丁烷-2,4-二硫化物 作用下， 生成 benzyl 2,3,4-tri-O-benzyl-6-O-(2,3,4,6-tetra-O-benzyl-α-D-mannopyranosyl)-α-D-galactopyranoside
  参考文献：
  名称：

  Redox glycosidation: stereoselective syntheses of (1.fwdarw.6) linked disaccharides via thionoester intermediates

  摘要：

  Perbenzyl derivatives of the disaccharides benzyl 6-O-(alpha(and beta)-D-glucopyranosyl)-alpha-D-galactopyranoside and benzyl 6-O-(alpha(and beta)-D-mannopyranosyl)-alpha-D-galactopyranoside were each prepared in a stereoselective manner by acylation, thionation, and reductive desulfurization. The use of 2,4-bis(4-phenoxyphenyl)-1,3,2,4-dithiadiphosphetane 2,4-disulfide (4b) as a mild thionation reagent for esters and lactones is also described.

  DOI：

  10.1021/jo00036a012