(3Z)-3-[2-(4-ethoxyphenyl)-2-oxoethylidene]-4H-1,4-benzoxazin-2-one | 1322306-05-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并恶嗪类
• 英文名称: (3Z)-3-[2-(4-ethoxyphenyl)-2-oxoethylidene]-4H-1,4-benzoxazin-2-one
• CAS: 1322306-05-7
• 化学式: C₁₈H₁₅NO₄
• 分子量: 309.321
• InChiKey: YJVWQKVORORATP-PTNGSMBKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.4
• 重原子数：
  23
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  草酰氯 、 (3Z)-3-[2-(4-ethoxyphenyl)-2-oxoethylidene]-4H-1,4-benzoxazin-2-one 以 苯 为溶剂， 反应 1.83h， 生成 3-(4-ethoxybenzoyl)-1H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-1,2,4-trione
  参考文献：
  名称：

  Five-membered 2,3-dioxo heterocycles: XCVIII. [4 + 2]-cycloaddition of alkyl vinyl ethers to 3-aroyl-1H-pyrrolo[2,1-c][1,4]benzoxazine-1,2,4-triones. A new synthetic approach to heteroanalogs of 13(14→8)-abeo steroids

  摘要：

  3-Aroyl-1H-pyrrolo[2,1-c][1,4]benzoxazine-1,2,4-triones reacted with alkyl vinyl ethers according to the [4 + 2]-cycloaddition pattern with formation of substituted (1S*,16R*)- and (1R*,16R*)-16-alkoxy-14-aryl-3,15-dioxa-10-azatetracyclo[8.7.0.0(1,13).0(4,9)]heptadeca-4,6,8,13-tetraene-2,11,12-triones. The structure of (1S*,16R*)-7-chloro-16-ethoxy-14-phenyl-3,15-dioxa-10-azatetracyclo[8.7.0.0(1,13).0(4,9)]heptadeca-4,6,8,13-tetraene-2,11,12-trione was determined by X-ray analysis. A new synthetic approach was developed to heteroanalogs of 13(14 -> 8)-abeo steroids, substituted 3,15-dioxa-10-azatetracyclo[8.7.0.0(1,13).0(4,9)]heptadecanes.

  DOI：

  10.1134/s1070428013120105
• 作为产物：
  描述：

  3-(4-ethoxybenzoyl)-1H-benzo[b]pyrrolo[1,2-d][1,4]oxazine-1,2,4-trione 在 水 作用下， 以 1,4-二氧六环 为溶剂， 生成 (3Z)-3-[2-(4-ethoxyphenyl)-2-oxoethylidene]-4H-1,4-benzoxazin-2-one
  参考文献：
  名称：

  Five-membered 2,3-dioxo heterocycles: LXXXVIII. Reaction of 3-aroylpyrrolo[1,2-d][1,4]benzoxazine-1,2,4(4H)-triones with N,N′-dicyclohexylcarbodiimide under thermolysis conditions

  摘要：

  Thermolysis of 3-aroylpyrrolo[1,2-d][1,4]benzoxazine-1,2,4(4H)-triones generates aroyl(2-oxo-1,4-benzoxazin-3-yl)ketenes which react as dienes at the aroylketene fragment in [4 + 2]-cycloaddition at the C=N bond of N,N'-dicyclohexylcarbodiimide with formation of 3-[6-aryl-4-oxo-3-cyclohexyl-2-cyclohexylimino-3,4-dihydro-2H-1,3-oxazin-5-yl]-2H-1,4-benzoxazin-2-ones. Thermolysis of the latter is accompanied by elimination of N,N'-dicyclohexylcarbodiimide, and aroyl(2-oxo-1,4-benzoxazin-3-yl)ketenes thus generated undergo cyclodimerization to produce 7-aroyl-6,10-dioxo-9-(2-oxo-2H-1,4-benzoxazin-3-yl)-6,10-dihydrobenzo[b]pyrido[1,2-d][1,4]oxazin-8-yl benzoates.

  DOI：

  10.1134/s1070428012090151