(R)-methyl 7-bromoisochroman-3-carboxylate | 1256845-27-8

• 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: (R)-methyl 7-bromoisochroman-3-carboxylate
• 英文别名: methyl (3R)-7-bromo-3,4-dihydro-1H-isochromene-3-carboxylate
• CAS: 1256845-27-8
• 化学式: C₁₁H₁₁BrO₃
• 分子量: 271.111
• InChiKey: OVDFAJVBVLMMHZ-SNVBAGLBSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.3
• 重原子数：
  15
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  35.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  methyl 3-(4-bromo-2-(hydroxymethyl)phenyl)-2-diazopropionate 在 (CuOTf)*toluene 、 C₃₁H₃₈N₂O₂ 、 四(3,5-二(三氟甲基)苯基)硼酸钠 作用下， 以 二氯甲烷 为溶剂， 以98%的产率得到(R)-methyl 7-bromoisochroman-3-carboxylate
  参考文献：
  名称：

  Enantioselective Copper-Catalyzed Intramolecular O−H Insertion: An Efficient Approach to Chiral 2-Carboxy Cyclic Ethers

  摘要：

  A copper-catalyzed asymmetric intramolecular O-H insertion of omega-hydroxy-alpha-diazoesters has been accomplished by using chiral spiro bisoxazoline ligands. This highly enantioselective intramolecular O-H insertion reaction provides an efficient approach to a variety of synthetically important chiral 2-carboxy cyclic ethers with different ring sizes as well as substitution patterns.

  DOI：

  10.1021/ja1078464

文献信息

• Enantioselective Copper-Catalyzed Intramolecular O−H Insertion: An Efficient Approach to Chiral 2-Carboxy Cyclic Ethers
  作者：Shou-Fei Zhu、Xiao-Guang Song、Yu Li、Yan Cai、Qi-Lin Zhou

  DOI：10.1021/ja1078464

  日期：2010.11.24

  A copper-catalyzed asymmetric intramolecular O-H insertion of omega-hydroxy-alpha-diazoesters has been accomplished by using chiral spiro bisoxazoline ligands. This highly enantioselective intramolecular O-H insertion reaction provides an efficient approach to a variety of synthetically important chiral 2-carboxy cyclic ethers with different ring sizes as well as substitution patterns.