| 1161782-26-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• CAS: 1161782-26-8
• 化学式: C₂₃H₂₆O₆S
• 分子量: 430.522
• InChiKey: XDLKQZOPSLXNMG-DLHUIPPFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.97
• 重原子数：
  30.0
• 可旋转键数：
  7.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.39
• 拓扑面积：
  71.06
• 氢给体数：
  0.0
• 氢受体数：
  7.0

反应信息

• 作为反应物：
  描述：

  在 一溴化碘 作用下， 以 二氯甲烷 为溶剂， 反应 0.13h， 生成 6-deoxy-2,3-di-O-acetyl-4-O-benzyl-α-D-mannopyranosyl bromide
  参考文献：
  名称：

  Synthesis of orthogonally protected d-olivoside, 1,3-di-O-acetyl-4-O-benzyl-2,6-dideoxy-d-arabinopyranose, as a C-glycosyl donor

  摘要：

  1,3-Di-O-acetyl-4-O-benzyl-2,6-dideoxy-D-arabinopyranose (11) was synthesised from thiophenyl alpha-D-mannopyranoside (21) in an eight-step sequence. Tosylation of 21 and subsequent reaction with 2,2-dimethoxypropane gave tosylate 22, which upon treatment with lithium aluminium hydride furnished 6-deoxy glycoside 24 and by-product thiophenyl 6-deoxy-2-O-isopropyl-alpha-D-arabinopyranoside. The X-ray crystal structure of the latter was determined. Benzylation of the 4-hydroxyl group of 24 and Subsequent protecting group manipulation gave D-rhamnosyl bromide 29, which on treatment with zinc-copper couple gave the orthogonally protected D-rhamnal 30. Triphenylphosphine hydrogen bromide catalysed addition of acetic acid to 30 furnished the target molecule 11. The scandium(III) triflate promoted reaction of 11 and 2-naphthol gave the corresponding C-glycoside 36 in 86% yield. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2009.03.092
• 作为产物：
  描述：

  乙酸酐 、 Phenyl 4-O-benzyl-1-thio-α-D-rhamnopyranoside 在 吡啶 作用下， 以2.54 g的产率得到
  参考文献：
  名称：

  Synthesis of orthogonally protected d-olivoside, 1,3-di-O-acetyl-4-O-benzyl-2,6-dideoxy-d-arabinopyranose, as a C-glycosyl donor

  摘要：

  1,3-Di-O-acetyl-4-O-benzyl-2,6-dideoxy-D-arabinopyranose (11) was synthesised from thiophenyl alpha-D-mannopyranoside (21) in an eight-step sequence. Tosylation of 21 and subsequent reaction with 2,2-dimethoxypropane gave tosylate 22, which upon treatment with lithium aluminium hydride furnished 6-deoxy glycoside 24 and by-product thiophenyl 6-deoxy-2-O-isopropyl-alpha-D-arabinopyranoside. The X-ray crystal structure of the latter was determined. Benzylation of the 4-hydroxyl group of 24 and Subsequent protecting group manipulation gave D-rhamnosyl bromide 29, which on treatment with zinc-copper couple gave the orthogonally protected D-rhamnal 30. Triphenylphosphine hydrogen bromide catalysed addition of acetic acid to 30 furnished the target molecule 11. The scandium(III) triflate promoted reaction of 11 and 2-naphthol gave the corresponding C-glycoside 36 in 86% yield. Crown Copyright (C) 2009 Published by Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2009.03.092