2,2,3,5,5-pentamethyl-4-hydroxymethylpyrrolidine | 77211-20-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯烷类
• 英文名称: 2,2,3,5,5-pentamethyl-4-hydroxymethylpyrrolidine
• 英文别名: 2,2,4,5,5-pentamethyl-3-methylol-pyrrolidine；(2,2,4,5,5-Pentamethylpyrrolidin-3-yl)methanol
• CAS: 77211-20-2
• 化学式: C₁₀H₂₁NO
• 分子量: 171.283
• InChiKey: KYDCJAGSMNFHPT-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  32.3
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,2,3,5,5-pentamethyl-4-hydroxymethylpyrrolidine 、 96%-H2 SO4 生成 2,2,4,5,5-pentamethyl-3-formyl pyrrolidine
  参考文献：
  名称：

  摘要：

  DOI：

文献信息

• Organic polymer stabilisation
  申请人：ENICHEM SYNTHESIS S.p.A.

  公开号：EP0162524A2

  公开（公告）日：1985-11-27

  The present invention comprises a liquid tea mix concentrate. The liquid tea mix concentrate is shelf-stable and substantially free of sulfur. It is characterized by a low pH, low water activity, high total solids, reduced levels of theaf- lavin and thearubigin, and a polyphenolic profile and molecular weight distribution distinct from other liquid tea mix concentrates. Tea beverage prepared from the concentrate is storage-stable in flavor and clarity. Acid-catalyzed degradation reactions that normally occur between tea mix components causing the development of off- flavor and malodorous sulfurous compounds and precipitates are accelerated during processing. By removing the resultant compounds, the development of off-flavors, off-aromas, and precipitates in the liquid tea concentrate is prevented without the use of preservatives.

  本发明包括一种液体茶混合浓缩物。这种液体茶混合浓缩物可在货架上保存，并且基本上不含硫。其特点是 pH 值低、水活度低、总固形物高、茶黄素和茶红素含量低、多酚特征和分子量分布不同于其他液体茶混合浓缩物。用这种浓缩物制备的茶饮料在口味和透明度方面都很稳定。在加工过程中，茶叶混合成分之间通常会发生酸催化降解反应，从而产生异味和恶臭的含硫化合物和沉淀物。通过去除由此产生的化合物，无需使用防腐剂就能防止液体茶浓缩物中产生异味、异臭和沉淀物。
• Polymer compositions stabilized with polysiloxanes containing sterically hindered heterocyclic moiety
  申请人：UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation)

  公开号：EP0358200A2

  公开（公告）日：1990-03-14

  The present invention relates to olefin po­lymers stabilized with polysiloxanes containing ste­rically hindered heterocyclic moieties, said polysi­loxanes being represented by the general formula M*vDxD*yTzQwM*v.

  本发明涉及用含有立体受阻杂环分子的聚硅氧烷稳定的烯烃聚合物，所述聚硅氧烷 由通式表示 M*vDxD*yTzQwM*v。
• Polysiloxanes with sterically hindered moiety
  申请人：UNION CARBIDE CORPORATION

  公开号：EP0358190A2

  公开（公告）日：1990-03-14

  The present invention reltes to polysiloxanes containing sterically hindered heterocyclic moieties. The compounds are represented by the general formula M*vDxD*yTzQwM*v.

  本发明涉及含有立体受阻杂环分子的聚硅氧烷。这些化合物由通式 M*vDxD*yTzQwM*v 表示。
• Process for the preparation of nitroxyl radicals of sterically hindered amines
  申请人：GREAT LAKES CHEMICAL ITALIA S.r.l.

  公开号：EP0488403B1

  公开（公告）日：1995-10-25
• US4346188A
  申请人：——

  公开号：US4346188A

  公开（公告）日：1982-08-24