7-氧杂二环[2.2.1]庚-5-烯-2,3-二羧酸酐 | 5629-08-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 呋喃类
• 中文名称: 7-氧杂二环[2.2.1]庚-5-烯-2,3-二羧酸酐
• 英文名称: 3a,4,5,6-Tetrahydro-4,7-epoxy-2-benzofuran-1,3-dione
• 英文别名: 4,10-dioxatricyclo[5.2.1.02,6]dec-1-ene-3,5-dione
• CAS: 5629-08-3
• 化学式: C₈H₆O₄
• 分子量: 166.13
• InChiKey: TUFPWGDTUYHGBL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.1
• 重原子数：
  12
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

制备方法与用途

化学性质： 白色棱状结晶，熔点为122-123℃。

用途： 去甲斑蝥素的中间体。

生产方法： 通过呋喃与顺丁烯二酸酐进行Diels-Alder加成反应制得。

文献信息

• Thiophene Azo Carboxylate Dyes and Laundry Care Compositions Containing the Same
  申请人：Torres Eduardo

  公开号：US20120309945A1

  公开（公告）日：2012-12-06

  This application relates to thiophene azo carboxylate dyes for use as hueing agents, laundry care compositions comprising such dyes that may serve as hueing agents, processes for making such dyes and laundry care compositions and methods of using the same. The aforementioned dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. Such dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. Such dyes are also generally stable to bleaching agents used in laundry care compositions.

  本申请涉及噻吩偶氮羧酸酯染料作为色调剂的用途，包括含有此类染料的洗涤保养组合物可作为色调剂，制备此类染料和洗涤保养组合物的方法以及使用它们的方法。前述染料含有一个形式上带电的基团，通常由至少两个组分组成：至少一个色团组分和至少一个聚合物组分。适当的色团组分通常在紫外光下照射时发出蓝色、红色、紫色或紫色的荧光，或者它们可以吸收光线以反射这些相同的色调。这种染料在提供色调效果方面具有优势，例如，对织物具有美白效果，同时不会随着时间的推移而积累并导致处理过的织物产生不良的蓝色变色。此类染料通常也稳定于洗涤保养组合物中使用的漂白剂。
• Composition and Associated Method
  申请人：Pan Zhida

  公开号：US20080306230A1

  公开（公告）日：2008-12-11

  A composition includes a Group (VIII) transition metal, an anionic ligand bonded to the metal, a neutral electron donor ligand bonded to the metal, and an alkylidene group bonded to the metal. The alkylidene group includes a cycloaliphatic radical substituted with an ionic group. An associated method is also provided.
• THIOPHENE AZO CARBOXYLATE DYES AND LAUNDRY CARE COMPOSITIONS CONTAINING THE SAME
  申请人：MIRACLE Gregory Scot

  公开号：US20120304398A1

  公开（公告）日：2012-12-06

  This application relates to thiophene azo carboxylate dyes for use as hueing agents, laundry care compositions comprising such dyes that may serve as hueing agents, processes for making such dyes and laundry care compositions and methods of using the same. The aforementioned dyes contain a formally charged moiety and are generally comprised of at least two components: at least one chromophore component and at least one polymeric component. Suitable chromophore components generally fluoresce blue, red, violet, or purple color when exposed to ultraviolet light, or they may absorb light to reflect these same shades. Such dyes are advantageous in providing a hueing effect, for example, a whitening effect to fabrics, while not building up over time and causing undesirable blue discoloration to the treated fabrics. Such dyes are also generally stable to bleaching agents used in laundry care compositions.
• US3996185A
  申请人：——

  公开号：US3996185A

  公开（公告）日：1976-12-07
• US4041004A
  申请人：——

  公开号：US4041004A

  公开（公告）日：1977-08-09