2-(tetrahydropyranyloxy)dodec-11-ene | 173483-44-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧烷类
• 英文名称: 2-(tetrahydropyranyloxy)dodec-11-ene
• 英文别名: 2-Dodec-11-en-2-yloxyoxane
• CAS: 173483-44-8
• 化学式: C₁₇H₃₂O₂
• 分子量: 268.44
• InChiKey: ZDPYJMQBKGWSQH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.9
• 重原子数：
  19
• 可旋转键数：
  11
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-(tetrahydropyranyloxy)dodec-11-ene 在 manganese(IV) oxide 、 氢氧化钾 、 N-溴代丁二酰亚胺(NBS) 、 偶氮二异丁腈 、 氰化钠 、 4-甲基苯磺酸吡啶 、 溶剂黄146 作用下， 以 甲醇 、 乙醇 、 正己烷 为溶剂， 反应 57.0h， 生成 methyl (E)-11-hydroxydodec-2-enoate
  参考文献：
  名称：

  Expedient Synthesis of (R)-Patulolide A

  摘要：

  An efficient derivation of the title compound has been formulated from easily accessible 10-undecenoic acid(1). Thus, dodec-11-en-2-ol (3), prepared from 1, was pyranylated and subjected to bromination with NBS followed by acetolysis to furnish (2E)-1-acetoxy-11-(tetrahydropyranyloxy)-dodec-2-ene (5). Its hydrolysis, oxidation, and depyranylation afforded the (2E)-hydroxy ester (9). This, on Candida rugosa lipase-catalyzed acetylation, SeO2 oxidation, hydrolysis, and Yamaguchi macrolactonization, led to (R)-patulolide A (I) with 67.1% ee. The enantiomeric excess was improved to 97% by first resolving the alcohol 3 via porcine pancreatic lipase catalyzed acetylation and converting the corresponding (R)-acetate (13) to I as done above.

  DOI：

  10.1021/jo951339k
• 作为产物：
  描述：

  10-十一烯-1-醇 在 4-甲基苯磺酸吡啶 、 pyridinium chlorochromate 作用下， 以 乙醚 、 二氯甲烷 为溶剂， 反应 18.0h， 生成 2-(tetrahydropyranyloxy)dodec-11-ene
  参考文献：
  名称：

  Expedient Synthesis of (R)-Patulolide A

  摘要：

  An efficient derivation of the title compound has been formulated from easily accessible 10-undecenoic acid(1). Thus, dodec-11-en-2-ol (3), prepared from 1, was pyranylated and subjected to bromination with NBS followed by acetolysis to furnish (2E)-1-acetoxy-11-(tetrahydropyranyloxy)-dodec-2-ene (5). Its hydrolysis, oxidation, and depyranylation afforded the (2E)-hydroxy ester (9). This, on Candida rugosa lipase-catalyzed acetylation, SeO2 oxidation, hydrolysis, and Yamaguchi macrolactonization, led to (R)-patulolide A (I) with 67.1% ee. The enantiomeric excess was improved to 97% by first resolving the alcohol 3 via porcine pancreatic lipase catalyzed acetylation and converting the corresponding (R)-acetate (13) to I as done above.

  DOI：

  10.1021/jo951339k

文献信息

• Synthesis and Stereochemical Elucidation of a 14-Membered Ring Phosphonate
  作者：Michael D. Pungente、Larry Weiler

  DOI：10.1021/ol006422v

  日期：2001.3.1

  [structure: see text]. We report the synthesis and stereochemical elucidation of a 14-membered ring phosphonate. The key step in the synthesis of the macrolide phosphonate was the cyclization of the acyclic precursor using the Mitsunobu reaction, a mild reaction for the preparation of mixed phosphonates.

  [结构：见文字]。我们报告的14元环膦酸酯的合成和立体化学阐明。合成大环内酯膦酸酯的关键步骤是使用Mitsunobu反应将无环前体环化，这是制备混合膦酸酯的温和反应。