| 174577-02-7

• 分子结构分类: 有机化合物 - 有机氧化合物
• CAS: 174577-02-7
• 化学式: C₆₆H₇₆O₂₀
• 分子量: 1189.32
• InChiKey: KYRDAQJIKBHLMD-RGILQMFYSA-N

反应信息

• 作为反应物：
  描述：

  在 palladium on activated charcoal 氢气 作用下， 以 乙醇 为溶剂， 反应 18.0h， 以93%的产率得到
  参考文献：
  名称：

  Selectively Deoxygenated Derivatives of β-Maltosyl-(1→4)-Trehalose as Biological Probes

  摘要：

  The four derivatives of beta-maltosyl-(1 --> 4)-trehalose have been synthesized, which are monodeoxygenated at the site of one of the primary hydroxyl groups. The tetrasaccharides were constructed in [2+2] block syntheses. Thus, 6'''-deoxy-beta-maltosyl-(1 --> 4)-trehalose was prepared by selective iodination of allyl 2,3,6,2',3'-penta-O-acetyl-beta-maltoside (3) followed by catalytic hydrogenolysis and coupling with 2,3-di-O-benzyl-4,6-O-benzylidene-alpha-D-glucopyranosyl 2',3',6'-tri-O-benzyl-alpha-D-glucopyranoside (9), and 6 ''-deoxy-beta-maltosyl-(1 --> 4)-trehalose by selective iodination of allyl 4',6'-O-isopropylidene-beta-maltoside (14), coupling with 9, and one-step hydrogenolysis at the tetrasaccharide level. For the synthesis of 6'-deoxy-beta-maltosyl-(1 --> 4)-trehalose, the diol 2,3-di-O-benzyl-4,6-O-benzylidene-alpha-D-glucopyranosyl 2',3'-di-O-benzyl-alpha-D-glucopyranoside (22) was selectively iodinated and glycosylated with acetobromomaltose followed by catalytic hydrogenolysis. The 6-deoxy-beta-maltosyl-(1 --> 4)-trehalose was obtained upon selective iodination of a tetrasaccharide diol.

  DOI：

  10.1080/07328309608005672
• 作为产物：
  描述：

  O-(2,3,4-Tri-O-acetyl-6-deoxy-α-D-glucopyranosyl)-(1->4)-1,2,3,6-tri-O-acetyl-β-D-glucopyranosyl-(1->4)-2,3,6-tri-O-benzyl-α-D-glucopyranosyl 2,3-di-O-benzyl-4,6-O-benzylidene-α-D-glucopyranoside 在 sodium methylate 作用下， 以 甲醇 、 环己烷 为溶剂， 反应 16.0h， 以85%的产率得到
  参考文献：
  名称：

  Selectively Deoxygenated Derivatives of β-Maltosyl-(1→4)-Trehalose as Biological Probes

  摘要：

  The four derivatives of beta-maltosyl-(1 --> 4)-trehalose have been synthesized, which are monodeoxygenated at the site of one of the primary hydroxyl groups. The tetrasaccharides were constructed in [2+2] block syntheses. Thus, 6'''-deoxy-beta-maltosyl-(1 --> 4)-trehalose was prepared by selective iodination of allyl 2,3,6,2',3'-penta-O-acetyl-beta-maltoside (3) followed by catalytic hydrogenolysis and coupling with 2,3-di-O-benzyl-4,6-O-benzylidene-alpha-D-glucopyranosyl 2',3',6'-tri-O-benzyl-alpha-D-glucopyranoside (9), and 6 ''-deoxy-beta-maltosyl-(1 --> 4)-trehalose by selective iodination of allyl 4',6'-O-isopropylidene-beta-maltoside (14), coupling with 9, and one-step hydrogenolysis at the tetrasaccharide level. For the synthesis of 6'-deoxy-beta-maltosyl-(1 --> 4)-trehalose, the diol 2,3-di-O-benzyl-4,6-O-benzylidene-alpha-D-glucopyranosyl 2',3'-di-O-benzyl-alpha-D-glucopyranoside (22) was selectively iodinated and glycosylated with acetobromomaltose followed by catalytic hydrogenolysis. The 6-deoxy-beta-maltosyl-(1 --> 4)-trehalose was obtained upon selective iodination of a tetrasaccharide diol.

  DOI：

  10.1080/07328309608005672