| 196934-08-4

• 分子结构分类: 有机化合物 - 有机氧化合物
• CAS: 196934-08-4
• 化学式: C₆₆H₇₈O₂₀
• 分子量: 1191.33
• InChiKey: UJPUHPJWXYSRRL-HDHOKVMXSA-N

反应信息

• 作为反应物：
  描述：

  在 palladium on activated charcoal 2,4,6-三甲基吡啶 、 氢气 作用下， 以 甲醇 、 二氯甲烷 、 水 、 乙酸乙酯 为溶剂， -70.0 ℃ 、827.37 kPa 条件下， 反应 8.33h， 生成
  参考文献：
  名称：

  Synthesis of Oligosaccharides Corresponding to Structures Found in Capsular Polysaccharides ofCryptococcus Neoformans. Part 3. Two Regioselectively Acetylated Tetrasaccharides.

  摘要：

  Regioselective acetylation of a tetrasaccharide has been accomplished using acetyl chloride and collidine in dichloromethane at low temperature. The degree of acetylation depended on the time and equivalents of reagents used. However, only acetylation of primary positions was observed. The acetylated oligosaccharides obtained after hydrogenolysis correspond to structures found in the capsular polysaccharide of Cryptococcus neoformans. The acetylation pattern in the target compounds was determined both by NMR and methylation analysis.

  DOI：

  10.1080/07328309708005731
• 作为产物：
  描述：

  methyl O-(2,3-di-O-benzyl-4,6-O-benzylidene-α-D-mannopyranosyl)-(1->3)-[O-(2,3,4-tri-O-benzyl-β-D-xylopyranosyl)-(1->2)]-O-(4,6-O-benzylidene-α-D-mannopyranosyl)-(1->3)-2-O-benzyl-4,6-O-benzylidene-α-D-mannopyranoside 在 溶剂黄146 作用下， 以 乙腈 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  Synthesis of Oligosaccharides Corresponding to Structures Found in Capsular Polysaccharides ofCryptococcus Neoformans. Part 3. Two Regioselectively Acetylated Tetrasaccharides.

  摘要：

  Regioselective acetylation of a tetrasaccharide has been accomplished using acetyl chloride and collidine in dichloromethane at low temperature. The degree of acetylation depended on the time and equivalents of reagents used. However, only acetylation of primary positions was observed. The acetylated oligosaccharides obtained after hydrogenolysis correspond to structures found in the capsular polysaccharide of Cryptococcus neoformans. The acetylation pattern in the target compounds was determined both by NMR and methylation analysis.

  DOI：

  10.1080/07328309708005731