Maltol | 651024-89-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡喃
• 英文名称: Maltol
• 英文别名: 2-Methyl-pyromalonsaeure；2-methyl-pyran-3,4-dione；2-Methyl-pyran-3,4-dion；2H-Pyran-3,4-dione, 2-methyl-；2-methylpyran-3,4-dione
• CAS: 651024-89-4
• 化学式: C₆H₆O₃
• 分子量: 126.112
• InChiKey: HYMLWHLQFGRFIY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  Maltol 、 异氰酸苯酯 生成 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  Peratoner; Tamburello, Gazzetta Chimica Italiana, 1906, vol. 36 I, p. 42

  摘要：

  DOI：
• 作为产物：
  描述：

  2-chloromethyl-pyran-3,4-dione 在 溶剂黄146 、 锌 作用下， 生成 Maltol
  参考文献：
  名称：

  The Structure of the Pyrone from Hydroxystreptomycin

  摘要：

  DOI：

  10.1021/ja01156a557

文献信息

• METHOD OF MODIFYING SURFACE LAYER OF MOLDED RESIN AND APPARATUS FOR MODIFYING SURFACE LAYER OF MOLDED RESIN
  申请人：Japan as represented by Secretary of Agency of Industrial Science and Technology

  公开号：EP1179558A1

  公开（公告）日：2002-02-13

  An organic compound having an affinity for a resin of a molded resin article and sublimation properties is allowed to penetrate/disperse into the surface of the molded resin article, thereby modifying and/or coloring a resin surface layer. The molded resin article and the organic compound having the affinity for the resin and the sublimation properties are put into a tightly closable container, and the pressure and the temperature in the container are adjusted to place them in a saturated sublimation pressure state of the organic compound, whereby a vapor of the organic compound is uniformly deposited on the surface of the molded resin article and it further penetrates/disperses into the resin surface layer, and in consequence, the resin surface layer can be modified and/or colored. In addition, the modification of the resin surface layer permits imparting a function thereto.

  让对模塑树脂制品的树脂具有亲和性和升华特性的有机化合物渗透/分散到模塑树脂制品的表面，从而改变和/或着色树脂表层。将模塑树脂制品和具有树脂亲和性和升华特性的有机化合物放入一个密闭容器中，调节容器中的压力和温度，使其处于有机化合物的饱和升华压力状态，从而使有机化合物的蒸气均匀地沉积在模塑树脂制品的表面，并进一步渗透/分散到树脂表层，从而对树脂表层进行改性和/或着色。此外，对树脂表层的改性还可以赋予其某种功能。
• Modification method of surface layer of molded resin article, and modification apparatus of surface layer of molded resin article
  申请人：National Institute of Advanced Industrial Science and Technology

  公开号：EP1944332A2

  公开（公告）日：2008-07-16

  A modification method of the surface layer of a molded resin article which comprises the steps of: placing, in a first closed space, an organic compound having sublimation properties and an affinity for a resin of a molded resin article to be coated; on the other hand, placing the molded resin article in a second closed space; controlling a temperature in the second closed space so as to be equal to or higher than the temperature in the first closed space; bringing a pressure in the first closed space to a saturated sublimation pressure state of the organic compound; controlling a pressure in the second closed space so as to be equal to or lower than the pressure in the first closed space; subsequently, connecting the first closed space to the second closed space to form a third closed space in which the first closed space is combined with the second closed space, and further controlling the temperature and the pressure so that the whole of the third closed space may be in the saturated sublimation pressure state of the organic compound; allowing a vapor of the organic compound with which the first closed space before the connection is filled to diffuse into the second closed space before the connection; uniformly depositing the vapor of the organic compound on the surface of the molded resin article; and allowing the deposited organic compound to penetrate/disperse from the surface of the molded resin article into its inside.

  一种模塑树脂制品表层的改性方法，包括以下步骤 将具有升华特性且与待涂覆的模塑树脂制品的树脂具有亲和性的有机化合物放入第一封闭空间； 另一方面，将模塑树脂制品放入第二封闭空间； 控制第二封闭空间的温度，使其等于或高于第一封闭空间的温度； 使第一封闭空间的压力达到有机化合物的饱和升华压力状态； 控制第二封闭空间的压力，使其等于或低于第一封闭空间的压力； 随后，将第一封闭空间与第二封闭空间连接起来，形成第三封闭空间，其中第一封闭空间与第二封闭空间相结合，并进一步控制温度和压力，使整个第三封闭空间处于有机化合物的饱和升华压力状态； 让连接前的第一封闭空间中充满的有机化合物蒸汽扩散到连接前的第二封闭空间中； 将有机化合物的蒸汽均匀地沉积在模塑树脂制品的表面；以及 让沉积的有机化合物从模塑树脂制品的表面渗透/分散到其内部。
• THE FORMATION OF MALTOL BY THE DEGRADATION OF STREPTOMYCIN
  作者：J. R. Schenck、M. A. Spielman

  DOI：10.1021/ja01228a518

  日期：1945.12
• Feuerstein, Chemische Berichte, 1901, vol. 34, p. 1805
  作者：Feuerstein

  DOI：——

  日期：——
• Schemjakin et al., Doklady Akademii Nauk SSSR, 1952, vol. 85, p. 1301 Anm.
  作者：Schemjakin et al.

  DOI：——

  日期：——