(Z)-1-Phenyl-3-hexene-2,5-dione | 342793-69-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (Z)-1-Phenyl-3-hexene-2,5-dione
• 英文别名: (Z)-1-phenylhex-3-ene-2,5-dione
• CAS: 342793-69-5
• 化学式: C₁₂H₁₂O₂
• 分子量: 188.226
• InChiKey: RNEVORJEJYJSMR-FPLPWBNLSA-N

物化性质

• 沸点：
  339.7±35.0 °C(Predicted)
• 密度：
  1.068±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.5
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (Z)-1-Phenyl-3-hexene-2,5-dione 在 臭氧 、 三乙胺 作用下， 以 二氯甲烷 为溶剂， 反应 5.0h， 生成
  参考文献：
  名称：

  Novel Oxa-Cage Compounds: Synthesis, Structures, and the Formation Mechanism of Tetraacetal Oxa-Cages and Convex Tetraquinane Oxa-Cages

  摘要：

  Several novel tetraacetal era-cage compounds 5a-d and convex tetraquinane era-cage compounds 16a-d and 17b-d are synthesized from alkylfurans in three steps. Ozonolysis of the cis-endo-1,4-diones 3a-d in dichloromethane at -78 degrees C followed by reduction with dimethyl sulfide gives the era-cages 5a-d in high yields, respectively. The structures of these new tetraacetal era-cages are deduced from their spectral data and proven for the first time by X-ray analysis of the crystalline compound 5a. Ozonolysis of 3a-d in dichloromethane at -78 degrees C followed by treatment with triethylamine gives the convex tetraquinane era-cages 16a-d and 17b-d in 85-90% yields, respectively. The structures of these novel convex tetraquinane era-cages are finally proven by X-ray analysis of the crystalline compound 16a. Two reaction mechanisms via the common final ozonides are proposed for the formation of these two different types of era-cage compounds. The structures of the final ozonides formed by ozonolysis of the norbornene derivatives 3 are deduced to be 9 with endo stereochemistry on the basis of their spectral data and the formation of these two types of era-cages from the final ozonides. In reaction with the final ozonides, triethylamine is found to act as a base instead of a reducing agent, a different function from that of dimethyl sulfide. The synthesis of era-cages 24 and 25, which possess aromatic substituents directly on the skeleton, has also been accomplished.

  DOI：

  10.1021/jo00128a031
• 作为产物：
  描述：

  2-Methyl-5-(phenylmethyl)furan 在 间氯过氧苯甲酸 作用下， 以 二氯甲烷 为溶剂， 以88%的产率得到(Z)-1-Phenyl-3-hexene-2,5-dione
  参考文献：
  名称：

  Stereoselective Synthesis of (E)-4-Alkylidenecyclopent-2-en-1-ones by a Tandem Ring Closure−Michael Addition−Elimination

  摘要：

  [GRAPHICS]Reaction of (Z)-1,4-diketones with various functionalized nitroalkanes in the presence of DBU gives 4-alkylidenecyclopent-2-en-1-ones with E selectivity, A cyclopentadienone intermediate is probably formed by intramolecular aldol condensation, and this reacts with a nitroalkane giving a Michael addition-elimination.

  DOI：

  10.1021/ol0069352

文献信息

• Novel Oxa-Cage Compounds: Synthesis, Structures, and the Formation Mechanism of Tetraacetal Oxa-Cages and Convex Tetraquinane Oxa-Cages
  作者：Hsien-Jen Wu、Chu-Chung Lin

  DOI：10.1021/jo00128a031

  日期：1995.11

  Several novel tetraacetal era-cage compounds 5a-d and convex tetraquinane era-cage compounds 16a-d and 17b-d are synthesized from alkylfurans in three steps. Ozonolysis of the cis-endo-1,4-diones 3a-d in dichloromethane at -78 degrees C followed by reduction with dimethyl sulfide gives the era-cages 5a-d in high yields, respectively. The structures of these new tetraacetal era-cages are deduced from their spectral data and proven for the first time by X-ray analysis of the crystalline compound 5a. Ozonolysis of 3a-d in dichloromethane at -78 degrees C followed by treatment with triethylamine gives the convex tetraquinane era-cages 16a-d and 17b-d in 85-90% yields, respectively. The structures of these novel convex tetraquinane era-cages are finally proven by X-ray analysis of the crystalline compound 16a. Two reaction mechanisms via the common final ozonides are proposed for the formation of these two different types of era-cage compounds. The structures of the final ozonides formed by ozonolysis of the norbornene derivatives 3 are deduced to be 9 with endo stereochemistry on the basis of their spectral data and the formation of these two types of era-cages from the final ozonides. In reaction with the final ozonides, triethylamine is found to act as a base instead of a reducing agent, a different function from that of dimethyl sulfide. The synthesis of era-cages 24 and 25, which possess aromatic substituents directly on the skeleton, has also been accomplished.
• Stereoselective Synthesis of (<i>E</i>)-4-Alkylidenecyclopent-2-en-1-ones by a Tandem Ring Closure−Michael Addition−Elimination
  作者：Roberto Ballini、Giovanna Bosica、Dennis Fiorini、Maria Victoria Gil、Marino Petrini

  DOI：10.1021/ol0069352

  日期：2001.5.1

  [GRAPHICS]Reaction of (Z)-1,4-diketones with various functionalized nitroalkanes in the presence of DBU gives 4-alkylidenecyclopent-2-en-1-ones with E selectivity, A cyclopentadienone intermediate is probably formed by intramolecular aldol condensation, and this reacts with a nitroalkane giving a Michael addition-elimination.