(3R,4R)-4-hydroxy-6-methoxymellein | 1362126-00-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: (3R,4R)-4-hydroxy-6-methoxymellein
• 英文别名: (3R,4S)-4-hydroxy-6-methoxymellein；(3R,4R)-4,8-dihydroxy-6-methoxy-3-methyl-3,4-dihydroisochromen-1-one
• CAS: 1362126-00-8
• 化学式: C₁₁H₁₂O₅
• 分子量: 224.213
• InChiKey: MJPSOCVCUXUXLP-FWOIEVBISA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  16
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  76
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4-methoxy-2-((E)-prop-1-enyl)benzoic acid 在 4-二甲氨基吡啶 、 三氟化硼乙醚 、 palladium diacetate 、 乙酸酐 、 potassium carbonate 、 溶剂黄146 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 甲醇 、 二氯甲烷 、 水 为溶剂， 反应 64.5h， 生成 (3R,4R)-4-hydroxy-6-methoxymellein
  参考文献：
  名称：

  A Series of Two Oxidation Reactions of ortho-Alkenylbenzamide with Hypervalent Iodine(III): A Concise Entry into (3R,4R)-4-Hydroxymellein and (3R,4R)-4-Hydroxy-6-methoxymellein

  摘要：

  A sequence of oxidation reactions of alkenamides with hypervalent iodine is described. Oxidation of ortho-alkenylbenzamide substrates selectively gave isochroman-1-imine products. The products underwent further oxidation in the presence of a Pd salt catalyst leading to regioselective C-H acetoxylation at the 8-position. A series of oxidations was applied to the crucial steps of asymmetric synthesis of 4-hydroxymellein derivatives.

  DOI：

  10.1021/ol502225p

文献信息

• A Series of Two Oxidation Reactions of <i>ortho</i>-Alkenylbenzamide with Hypervalent Iodine(III): A Concise Entry into (3<i>R</i>,4<i>R</i>)-4-Hydroxymellein and (3<i>R</i>,4<i>R</i>)-4-Hydroxy-6-methoxymellein
  作者：Takuya Takesue、Morifumi Fujita、Takashi Sugimura、Hiroki Akutsu

  DOI：10.1021/ol502225p

  日期：2014.9.5

  A sequence of oxidation reactions of alkenamides with hypervalent iodine is described. Oxidation of ortho-alkenylbenzamide substrates selectively gave isochroman-1-imine products. The products underwent further oxidation in the presence of a Pd salt catalyst leading to regioselective C-H acetoxylation at the 8-position. A series of oxidations was applied to the crucial steps of asymmetric synthesis of 4-hydroxymellein derivatives.