4,5-dihydroxy-phthalic acid-anhydride | 114874-92-9

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 4,5-dihydroxy-phthalic acid-anhydride
• 英文别名: 4,5-Dihydroxy-phthalsaeure-anhydrid；5,6-Dihydroxy-1,3-dihydro-2-benzofuran-1,3-dione；5,6-dihydroxy-2-benzofuran-1,3-dione
• CAS: 114874-92-9
• 化学式: C₈H₄O₅
• 分子量: 180.117
• InChiKey: OTXNQJFPWOGQRL-UHFFFAOYSA-N

物化性质

• 熔点：
  250.5-252.5 °C
• 沸点：
  508.6±40.0 °C(Predicted)
• 密度：
  1.811±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  0.6
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  83.8
• 氢给体数：
  2
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  4,5-二甲氧基邻苯二甲酸 在 磷化氢 、 氢碘酸 作用下， 生成 4,5-dihydroxy-phthalic acid-anhydride
  参考文献：
  名称：

  Rossin, Monatshefte fur Chemie, 1891, vol. 12, p. 497

  摘要：

  DOI：

文献信息

• 2-Oxo-1-[[(Substituted Sulfonyl)Amino]-Carbonyl]Azetidines
  申请人：Bristol-Myers Squibb GmbH

  公开号：EP0251143A1

  公开（公告）日：1988-01-07

  Antibacterial activity is exhibited by β-lactams having a 3-acylamino substituent and having in the 1-position an activating group of the formula wherein R is

  具有 3-酰氨基取代基并在 1 位上具有式中活化基团的 β-内酰胺具有抗菌活性，其中 R 为
• Brueck, Chemische Berichte, 1901, vol. 34, p. 2741
  作者：Brueck

  DOI：——

  日期：——
• Pratt; Perkins, Journal of the American Chemical Society, 1918, vol. 40, p. 230
  作者：Pratt、Perkins

  DOI：——

  日期：——
• CHEMICAL-RESISTANT PROTECTIVE FILM FORMING COMPOSITION CONTAINING HYDROXYARYL-TERMINATED POLYMER
  申请人：NISSAN CHEMICAL CORPORATION

  公开号：US20220204686A1

  公开（公告）日：2022-06-30

  A protective film-forming composition including good mask (protection) function against a wet etching liquid and a high dry etching rate during processing of semiconductor substrates, including good coverage even in stepped substrates, and from which flat films can be formed due to a small difference in film thickness after embedding; a protective film produced using said composition; a substrate with a resist pattern; and a method for manufacturing a semiconductor device. A protective film-forming composition which protects against a semiconductor wet etching liquid, wherein a reaction product (P) of a diepoxy compound (B) and an bifunctional proton-generating compound (C) contains a structure represented by formula (1) (in formula (1), Ar represents a C6-40 aryl group, n represents an integer of 2-10, —Y— represents —OCO—, —O— or —S—, and * represents the bonding site with the reaction product (P) molecule terminal). The protective film-forming composition further includes an organic solvent (S).
• US4801705A
  申请人：——

  公开号：US4801705A

  公开（公告）日：1989-01-31