4,9-Diethyl-2,7-dimethyl-1,6-dioxapyrene | 137517-14-7

• 分子结构分类: 有机化合物 - 苯类化合物
• 英文名称: 4,9-Diethyl-2,7-dimethyl-1,6-dioxapyrene
• 英文别名: 7,14-Diethyl-3,10-dimethyl-5,12-dioxatetracyclo[6.6.2.04,16.011,15]hexadeca-1(15),2,4(16),6,8,10,13-heptaene
• CAS: 137517-14-7
• 化学式: C₂₀H₂₀O₂
• 分子量: 292.378
• InChiKey: CFVQACUWBCQESR-UHFFFAOYSA-N

物化性质

• 沸点：
  435.1±45.0 °C(Predicted)
• 密度：
  1.150±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  22
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.3
• 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：

  4,9-Diethyl-2,7-dimethyl-1,6-dioxapyrene 、 7,7,8,8-四氰基对苯二醌二甲烷 以 苯甲腈 、 乙腈 为溶剂， 以70%的产率得到2-[4-(Dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]propanedinitrile;7,14-diethyl-3,10-dimethyl-5,12-dioxatetracyclo[6.6.2.04,16.011,15]hexadeca-1(15),2,4(16),6,8,10,13-heptaene
  参考文献：
  名称：

  Synthesis and properties of substituted 1,6-dioxapyrene donors

  摘要：

  The synthesis of substituted 1,6-dioxapyrenes, 2b-g, from 2,6-dipropyl-1,5-naphthalenediol (7a) or 2,6-dimethyl-1,5-naphthalenediol (7b) is described. Diol 7a was prepared by Claisen allylic rearrangement followed by reduction, and 7b was prepared by Mannich reaction of 1,5-naphthalenediol followed by base-promoted hydrogenolysis. The 1,6-dioxapyrenes can be oxidized to stable cation radicals at +0.2-0.35 V vs SCE and to dications at +0.8-1.20 V. The preparation of some tetracyanoquinodimethane salts and binary cation radical salts of the 1,6-dioxapyrenes is reported.

  DOI：

  10.1021/jo00025a020
• 作为产物：
  描述：

  1,5-Dihydroxy-2,6-dimethylnaphthalin 在 甲烷磺酸 、 potassium carbonate 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 生成 4,9-Diethyl-2,7-dimethyl-1,6-dioxapyrene
  参考文献：
  名称：

  Synthesis and properties of substituted 1,6-dioxapyrene donors

  摘要：

  The synthesis of substituted 1,6-dioxapyrenes, 2b-g, from 2,6-dipropyl-1,5-naphthalenediol (7a) or 2,6-dimethyl-1,5-naphthalenediol (7b) is described. Diol 7a was prepared by Claisen allylic rearrangement followed by reduction, and 7b was prepared by Mannich reaction of 1,5-naphthalenediol followed by base-promoted hydrogenolysis. The 1,6-dioxapyrenes can be oxidized to stable cation radicals at +0.2-0.35 V vs SCE and to dications at +0.8-1.20 V. The preparation of some tetracyanoquinodimethane salts and binary cation radical salts of the 1,6-dioxapyrenes is reported.

  DOI：

  10.1021/jo00025a020