4-hydroxy-3-methyl-2H-1-benzothiopyran-2-one | 16855-61-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 硫色烯
• 英文名称: 4-hydroxy-3-methyl-2H-1-benzothiopyran-2-one
• 英文别名: 4-hydroxy-3-methyl-thiochromen-2-one
• CAS: 16855-61-1
• 化学式: C₁₀H₈O₂S
• 分子量: 192.238
• InChiKey: XWPHCHWBGDOIRM-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  丙酸乙酯 、 硫代水杨酸甲酯 在 盐酸 、 lithium diisopropyl amide 作用下， 生成 4-hydroxy-3-methyl-2H-1-benzothiopyran-2-one
  参考文献：
  名称：

  由羧酸酯和水杨酸甲酯或硫代水杨酸甲酯制备4-羟基-3-取代的2 H -1-苯并吡喃-2-酮和2 H -1-苯并噻喃-2-酮

  摘要：

  用过量的二异丙基氨基锂处理C（α）-羧酸酯，与水杨酸甲酯或硫代水杨酸甲酯缩合，然后酸环化成4-羟基-3-取代的2 H -1-苯并吡喃-2-酮（香豆素）或2 H -1-苯并噻喃-2-酮（硫香豆素）。

  DOI：

  10.1002/jhet.5570340411

文献信息

• OPTICAL RECORDING MEDIUM AND METHOD OF RECORDING VISIBLE INFORMATION
  申请人：SETO Nobuo

  公开号：US20090022047A1

  公开（公告）日：2009-01-22

  The optical recording medium comprises a visible information recording layer comprising at least two dyes of the following dyes. R a1 to R b3 each independently denote a hydrogen atom or a monovalent substituent, R a2 and R a3 may bond together to form a five to seven-membered heterocyclic ring, A denotes a substituted or unsubstituted aliphatic group, substituted or unsubstituted aryl group, or substituted or unsubstituted heterocyclic group, n denotes 0, 1, 2, or 3. Za 21 and Za 22 each independently denote an atom group forming an acidic nucleus, Ma 21 to Ma 23 each independently denote a substituted or unsubstituted methine group, Ka 21 denotes an integer ranging from 0 to 3, and Q denotes a monovalent cation. A 1 =N—B 1 General formula (III) A 1 denotes a substituted or unsubstituted heterocyclic group, a substituted aliphatic group, or a substituted or unsubstituted carbocyclic group, and B 1 denotes a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted aryl group.