1,4-anhydro-2-deoxy-3,5-bis-O-(di-tert-butylsilylene)-1-C-hydroxyethyl-D-erythro-pent-1-enitol | 1235869-92-7

• 分子结构分类: 有机化合物 - 有机杂环化合物
• 英文名称: 1,4-anhydro-2-deoxy-3,5-bis-O-(di-tert-butylsilylene)-1-C-hydroxyethyl-D-erythro-pent-1-enitol
• CAS: 1235869-92-7
• 化学式: C₁₅H₂₈O₄Si
• 分子量: 300.47
• InChiKey: YVNRDGPCBWRTEC-QWHCGFSZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.11
• 重原子数：
  20.0
• 可旋转键数：
  2.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.87
• 拓扑面积：
  47.92
• 氢给体数：
  1.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  三乙基氯硅烷 、 1,4-anhydro-2-deoxy-3,5-bis-O-(di-tert-butylsilylene)-1-C-hydroxyethyl-D-erythro-pent-1-enitol 在 咪唑 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 0.17h， 以85%的产率得到1,4-anhydro-2-deoxy-3,5-bis-O-(di-tert-butylsilylene)-1-C-(triethylsilyloxyethyl)-D-erythro-pent-1-enitol
  参考文献：
  名称：

  Electrophilic glycosidation employing 3,5-O-(di-tert-butylsilylene)-erythro-furanoid glycal leads to exclusive formation of the β-anomer: synthesis of 2′-deoxynucleosides and its 1′-branched analogues

  摘要：

  Stereoselectivity in N-iodosuccimide (NIS)-mediated electrophilic glycosidation was examined by employing 2,4-bis-O-(trimethylsilyl)thymine and three different silyl-protected erythro-furanoid glycals 12, 16, and 18. As a result, it was found that 3,5-O-(di-t-butylsilylene)-protected 18 gave only the beta-anomer (21). The remarkable stereoselectivity observed by employing 18 is discussed on the basis of its X-ray crystallographic analysis. 1-Substituted glycals gave the corresponding beta-anomer, again exclusively, to provide access to 1'-branched 2'-deoxynucleosides. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.04.043
• 作为产物：
  描述：

  环氧乙烷 、 1,4-anhydro-2-deoxy-3,5-O-(di-tert-butylsilylene)-D-erythro-pent-1-enitol 在 叔丁基锂 、 三氟化硼乙醚 、 水 、 氯化铵 作用下， 以 四氢呋喃 、 正戊烷 、 乙酸乙酯 为溶剂， 反应 1.0h， 以62%的产率得到1,4-anhydro-2-deoxy-3,5-bis-O-(di-tert-butylsilylene)-1-C-hydroxyethyl-D-erythro-pent-1-enitol
  参考文献：
  名称：

  Electrophilic glycosidation employing 3,5-O-(di-tert-butylsilylene)-erythro-furanoid glycal leads to exclusive formation of the β-anomer: synthesis of 2′-deoxynucleosides and its 1′-branched analogues

  摘要：

  Stereoselectivity in N-iodosuccimide (NIS)-mediated electrophilic glycosidation was examined by employing 2,4-bis-O-(trimethylsilyl)thymine and three different silyl-protected erythro-furanoid glycals 12, 16, and 18. As a result, it was found that 3,5-O-(di-t-butylsilylene)-protected 18 gave only the beta-anomer (21). The remarkable stereoselectivity observed by employing 18 is discussed on the basis of its X-ray crystallographic analysis. 1-Substituted glycals gave the corresponding beta-anomer, again exclusively, to provide access to 1'-branched 2'-deoxynucleosides. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2010.04.043