2-phenyl-2,4-dihydrobenzo[f]isochroman | 1028202-45-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 萘并吡喃类
• 英文名称: 2-phenyl-2,4-dihydrobenzo[f]isochroman
• 英文别名: 2-phenyl-2,4-dihydro-1H-benzo[f]isochromene
• CAS: 1028202-45-0
• 化学式: C₁₉H₁₆O
• 分子量: 260.335
• InChiKey: REEUEWSXZDEMJG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  20
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.16
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-[2-(羟甲基)萘-1-基]-1-苯基-乙醇 在 磷酸 作用下， 以 甲苯 为溶剂， 反应 4.0h， 以95%的产率得到2-phenyl-2,4-dihydrobenzo[f]isochroman
  参考文献：
  名称：

  Regioselective reductive opening of substituted phthalans: synthetic applications

  摘要：

  The reductive opening of substituted phthalans 6, 11, 12, 20, 21 and 28 with lithium and a catalytic amount of DTBB leads to the formation of corresponding functionalised organolithium intermediates 8, 15, 16, 23, 25 and 29+30 in a regioselective manner. The further reaction of these dianions with different electrophiles, mainly carbonyl compounds, gives the expected functionalised benzylic alcohols 9, 17, 18, 24, 26 and 31+32. The observed stereochemistry can be easily explained taking into account the values of the electron densities deduced by semiempirical PM3 calculations. (c) 2008 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2008.02.072

文献信息

• Regioselective reductive opening of substituted phthalans: synthetic applications
  作者：Daniel García、Francisco Foubelo、Miguel Yus

  DOI：10.1016/j.tet.2008.02.072

  日期：2008.5

  The reductive opening of substituted phthalans 6, 11, 12, 20, 21 and 28 with lithium and a catalytic amount of DTBB leads to the formation of corresponding functionalised organolithium intermediates 8, 15, 16, 23, 25 and 29+30 in a regioselective manner. The further reaction of these dianions with different electrophiles, mainly carbonyl compounds, gives the expected functionalised benzylic alcohols 9, 17, 18, 24, 26 and 31+32. The observed stereochemistry can be easily explained taking into account the values of the electron densities deduced by semiempirical PM3 calculations. (c) 2008 Elsevier Ltd. All rights reserved.