2-(((2R,3S,4S,5R)-4-benzyloxy-3-(4-methoxybenzyloxy)-5-methyltetrahydrofuran-2-yl)methyl)furan | 1346433-73-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 2-(((2R,3S,4S,5R)-4-benzyloxy-3-(4-methoxybenzyloxy)-5-methyltetrahydrofuran-2-yl)methyl)furan
• 英文别名: 2-[[(2R,3S,4S,5R)-3-[(4-methoxyphenyl)methoxy]-5-methyl-4-phenylmethoxyoxolan-2-yl]methyl]furan
• CAS: 1346433-73-5
• 化学式: C₂₅H₂₈O₅
• 分子量: 408.494
• InChiKey: GPFGFHPLZMNBGK-UWCPCEDSSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.2
• 重原子数：
  30
• 可旋转键数：
  9
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  50.1
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  2-(((2R,3S,4S,5R)-4-benzyloxy-3-(4-methoxybenzyloxy)-5-methyltetrahydrofuran-2-yl)methyl)furan 在 重铬酸吡啶 、 萘 、 lithium 、 间氯过氧苯甲酸 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 13.5h， 生成 (+)-pyrenolide D
  参考文献：
  名称：

  A Carbohydrate-Based Total Syntheses of (+)-Pyrenolide D and (−)-4-epi-Pyrenolide D

  摘要：

  Efficient total syntheses of (+)-pyrenolide D (5) and (-)-4-epi-pyrenolide D (6) have been achieved from a known 5-deoxy-D-xylose derivative 9 in ten steps with 19% overall yield either exclusively as 5 or as pure 5 and 6 in a 3:2 ratio. Key steps involved are one-pot epoxidation-cyclization by Corey-Chaykvosky reagent, reductive Barton-McCombie deoxygenation, and per-acid mediated oxidative spiroketalization.

  DOI：

  10.1021/jo201570h
• 作为产物：
  描述：

  O-[furan-2-yl-[(2S,3R,4S,5R)-3-[(4-methoxyphenyl)methoxy]-5-methyl-4-phenylmethoxyoxolan-2-yl]methyl] methylsulfanylmethanethioate 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 甲苯 为溶剂， 反应 8.0h， 以89%的产率得到2-(((2R,3S,4S,5R)-4-benzyloxy-3-(4-methoxybenzyloxy)-5-methyltetrahydrofuran-2-yl)methyl)furan
  参考文献：
  名称：

  A Carbohydrate-Based Total Syntheses of (+)-Pyrenolide D and (−)-4-epi-Pyrenolide D

  摘要：

  Efficient total syntheses of (+)-pyrenolide D (5) and (-)-4-epi-pyrenolide D (6) have been achieved from a known 5-deoxy-D-xylose derivative 9 in ten steps with 19% overall yield either exclusively as 5 or as pure 5 and 6 in a 3:2 ratio. Key steps involved are one-pot epoxidation-cyclization by Corey-Chaykvosky reagent, reductive Barton-McCombie deoxygenation, and per-acid mediated oxidative spiroketalization.

  DOI：

  10.1021/jo201570h

文献信息

• A Carbohydrate-Based Total Syntheses of (+)-Pyrenolide D and (−)-4-<i>epi</i>-Pyrenolide D
  作者：Barla Thirupathi、P. Purushotam Reddy、Debendra K. Mohapatra

  DOI：10.1021/jo201570h

  日期：2011.12.2

  Efficient total syntheses of (+)-pyrenolide D (5) and (-)-4-epi-pyrenolide D (6) have been achieved from a known 5-deoxy-D-xylose derivative 9 in ten steps with 19% overall yield either exclusively as 5 or as pure 5 and 6 in a 3:2 ratio. Key steps involved are one-pot epoxidation-cyclization by Corey-Chaykvosky reagent, reductive Barton-McCombie deoxygenation, and per-acid mediated oxidative spiroketalization.