(1R,2R,3R,4R,5R)-4-Dibenzylamino-3-[(R)-hydroxy-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-methyl]-6,8-dioxa-bicyclo[3.2.1]octan-2-ol | 270922-91-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二氧吡喃
• 英文名称: (1R,2R,3R,4R,5R)-4-Dibenzylamino-3-[(R)-hydroxy-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-methyl]-6,8-dioxa-bicyclo[3.2.1]octan-2-ol
• CAS: 270922-91-3
• 化学式: C₃₂H₄₁NO₉
• 分子量: 583.679
• InChiKey: MFHMTRVWNFUHGV-ORKVQOKOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.55
• 重原子数：
  42.0
• 可旋转键数：
  7.0
• 环数：
  7.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  108.31
• 氢给体数：
  2.0
• 氢受体数：
  10.0

反应信息

• 作为反应物：
  描述：

  2,2-二甲氧基丙烷 、 (1R,2R,3R,4R,5R)-4-Dibenzylamino-3-[(R)-hydroxy-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-methyl]-6,8-dioxa-bicyclo[3.2.1]octan-2-ol 在 calcium sulfate 、 对甲苯磺酸 作用下， 以 丙酮 为溶剂， 反应 6.0h， 以64%的产率得到
  参考文献：
  名称：

  Convergent syntheses of C(1→3)-linked disaccharides starting from isolevoglucosenone

  摘要：

  Nucleophilic addition (Nu-Mf) to isolevoglucosenone 1 generates enolates stereospecifically (exo face addition) that can be reacted with sugar-derived aldehydes to give C(1-->3)-linked disaccharide precursors with high diastereoselectivity. Limitations of the method arising from unfavorable aldolate stability can be overcome by using Et2AlI as the nucleophile. This leads to products of Baylis-Hillmann condensations. One example is presented and has led to the preparation of 2,3-anhydro-3-C-[(1S)-2,6-anhydro-D-glycero-D-gulo-heptitol-1-C-yl]-beta-D-gulo-pyranose 5. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(99)00492-9
• 作为产物：
  描述：

  1,2：3,4-二-O-异亚丙基-α-D-半乳糖-己二醛-1,5-吡喃糖 、 isolevoglucosenone 、 二苄胺 以40%的产率得到(1R,2R,3R,4R,5R)-4-Dibenzylamino-3-[(R)-hydroxy-((3aR,5R,5aS,8aS,8bR)-2,2,7,7-tetramethyl-tetrahydro-bis[1,3]dioxolo[4,5-b;4',5'-d]pyran-5-yl)-methyl]-6,8-dioxa-bicyclo[3.2.1]octan-2-ol
  参考文献：
  名称：

  Convergent syntheses of C(1→3)-linked disaccharides starting from isolevoglucosenone

  摘要：

  Nucleophilic addition (Nu-Mf) to isolevoglucosenone 1 generates enolates stereospecifically (exo face addition) that can be reacted with sugar-derived aldehydes to give C(1-->3)-linked disaccharide precursors with high diastereoselectivity. Limitations of the method arising from unfavorable aldolate stability can be overcome by using Et2AlI as the nucleophile. This leads to products of Baylis-Hillmann condensations. One example is presented and has led to the preparation of 2,3-anhydro-3-C-[(1S)-2,6-anhydro-D-glycero-D-gulo-heptitol-1-C-yl]-beta-D-gulo-pyranose 5. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(99)00492-9