7-acetoxy-4-methyl-3-phenyl-2H-1-benzopyran-2-one | 75200-57-6

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 异黄酮类化合物
• 英文名称: 7-acetoxy-4-methyl-3-phenyl-2H-1-benzopyran-2-one
• 英文别名: 7-acetoxy-4-methyl-3-phenyl-2H-chromen-2-one；7-acetoxy-4-methyl-3-phenyl-coumarin；7-Acetoxy-4-methyl-3-phenyl-cumarin；4-methyl-2-oxo-3-phenyl-2H-chromen-7-yl acetate；(4-methyl-2-oxo-3-phenylchromen-7-yl) acetate
• CAS: 75200-57-6
• 化学式: C₁₈H₁₄O₄
• 分子量: 294.307
• InChiKey: OEIICEKXTCMHPV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  22
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  7-acetoxy-4-methyl-3-phenyl-2H-1-benzopyran-2-one 在 盐酸 作用下， 反应 1.0h， 以3 g的产率得到7-hydroxy-4-methyl-3-phenyl-chromen-2-one
  参考文献：
  名称：

  Rao, B. Vittal; Somayajulu, V. V.; Atal, C. K., Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1980, vol. 19, # 3, p. 220 - 221

  摘要：

  DOI：
• 作为产物：
  描述：

  2,4-二羟基苯乙酮 、 sodium phenylacetate 在 乙酸酐 作用下， 生成 7-acetoxy-4-methyl-3-phenyl-2H-1-benzopyran-2-one
  参考文献：
  名称：

  Seshadri; Varadarajan, Journal Of Scientific and Industrial Research, 1952, vol. 11 B, p. 39,43

  摘要：

  DOI：

文献信息

• Photophysical investigation of 3-substituted 4-alkyl and/or 7-acetoxy coumarin derivatives—A study of the effect of substituents on fluorescence
  作者：Choorikkat Ranjith、K.K. Vijayan、Vakayil K. Praveen、N.S. Saleesh Kumar

  DOI：10.1016/j.saa.2010.02.027

  日期：2010.5

  novel substituted 2H-chromen-2-one (coumarin) derivatives has been subjected to photophysical analysis. Though the influence of the electron-donating groups such as amino, substituted amino, hydroxyl, alkoxy groups, etc. at position 7 of the coumarin ring system has been extensively studied, the luminescent properties of the coumarin moieties with an acetoxy substituent have not been explored. Herein it

  在本工作中，对一系列新型取代的2H-铬-2--2-（香豆素）衍生物进行了光物理分析。尽管已经广泛研究了香豆素环系统的7位上的供电子基团如氨基，取代的氨基，羟基，烷氧基等的影响，但尚未研究具有乙酰氧基取代基的香豆素部分的发光性质。探索。本文试图研究取代的香豆素衍生物的荧光行为随2H-色烯-2-酮骨架上取代基的性质和位置的变化。还简要地描述了在位置4处的甲基取代基对色酮单元施加异常光物理行为的作用。
• Process for production of vinyl chloride polymer
  申请人：Shin-Etsu Chemical Co., Ltd.

  公开号：EP0172427A2

  公开（公告）日：1986-02-26

  This process is a process for production of a vinyl chloride polymer by suspension polymerization or emulsion polymerization of vinyl chloride monomer or a mixture of vinyl chloride monomer with a vinyl monomer copolymerizable with said vinyl chloride monomer in an aqueous medium, characterized in that the polymerization is carried out in a polymerizer, the inner wall surface and portions of the auxiliary equipment thereof which may come into contact with the monomer during polymerization being previously coated with a scaling preventive comprising at least one selected from dyes, pigments and aromatic or heterocyclic compounds having at least 5 conjugated π bonds, while controlling the chloride ion concentration in the reaction mixture to not higher than 100 ppm. According to said process, scaling onto the inner wall surface of a polymerizer, etc. during polymerization can be prevented effectively and surely.

  该工艺是通过氯乙烯单体或氯乙烯单体与可与所述氯乙烯单体共聚的乙烯基单体混合物在水介质中进行悬浮聚合或乳液聚合来生产氯乙烯聚合物的工艺，其特征在于聚合是在聚合器中进行的、内壁表面及其辅助设备中可能在聚合过程中与单体接触的部分事先涂上一层防垢剂，该防垢剂至少包括一种选自染料、颜料和至少有 5 个共轭 π 键的芳香族或杂环化合物的防垢剂，同时控制反应混合物中的氯离子浓度不高于 100 ppm。根据上述工艺，可有效、可靠地防止聚合过程中聚合器等内壁表面结垢。
• Jacobson; Ghosh, Journal of the Chemical Society, 1915, vol. 107, p. 1055
  作者：Jacobson、Ghosh

  DOI：——

  日期：——
• Bargellini, Atti della Accademia Nazionale dei Lincei, Classe di Scienze Fisiche, Matematiche e Naturali, Rendiconti, 1925, vol. <6>2, p. 180
  作者：Bargellini

  DOI：——

  日期：——
• Sangwan; Verma; Malik, Indian Journal of Chemistry - Section B Organic and Medicinal Chemistry, 1990, vol. 29, # 3, p. 294 - 296
  作者：Sangwan、Verma、Malik、Dhindsa

  DOI：——

  日期：——