alpha,alpha'-bis[1-(2-methoxycarbonylethoxy)-2,2,6,6-tetramethylpiperidin-4-yloxy]-p-xylene | 131840-97-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: alpha,alpha'-bis[1-(2-methoxycarbonylethoxy)-2,2,6,6-tetramethylpiperidin-4-yloxy]-p-xylene
• 英文别名: methyl 3-[4-[[4-[[1-(3-methoxy-3-oxopropoxy)-2,2,6,6-tetramethylpiperidin-4-yl]oxymethyl]phenyl]methoxy]-2,2,6,6-tetramethylpiperidin-1-yl]oxypropanoate
• CAS: 131840-97-6
• 化学式: C₃₄H₅₆N₂O₈
• 分子量: 620.827
• InChiKey: MHVRUKBWWMABLF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  44
• 可旋转键数：
  16
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.76
• 拓扑面积：
  96
• 氢给体数：
  0
• 氢受体数：
  10

反应信息

• 作为产物：
  描述：

  alpha,alpha'-(di-1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yloxy)-p-xylene 、 丙烯酸甲酯（MA） 在 potassium tert-butylate 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 以20%的产率得到alpha,alpha'-bis[1-(2-methoxycarbonylethoxy)-2,2,6,6-tetramethylpiperidin-4-yloxy]-p-xylene
  参考文献：
  名称：

  Stabilizers derived from N-hydroxy hindered amines by Michael addition

  摘要：

  N-羟基受阻胺与α，β-不饱和羰基化合物（包括酯类、酰胺、亚酰胺和酐的衍生物）的Michael加成产物是有效的稳定剂，用于保护有机聚合物免受光化学光的有害影响。

  公开号：

  US05015678A1

文献信息

• Inhibition of pulp and paper yellowing using nitroxides, hydroxylamines and other coadditives
  申请人：——

  公开号：US20020124980A1

  公开（公告）日：2002-09-12

  Pulps or papers, especially chemimechanical or thermomechanical pulps or papers, which still contain lignin, have enhanced resistance to yellowing when they contain an effective stabilizing amount of a hindered amine compound which preferably is a nitroxide, a hydroxylamine or an ammonium salt thereof. This performance is often further enhanced by the presence of one or more coadditives selected from the group consisting of the UV absorbers, the polymeric inhibitors, the nitrones, the fluorescent whitening agents, metal chelating agents, sulfur containing stabilizers, metal salts and diene compounds. Combinations of nitroxides, hydroxylamines or their salts, benzotriazole or benzophenone UV absorbers and a metal chelating agent are particularly effective. Selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-piperidin-4-ol and selected hydroxylamine salts are novel compounds and are surprisingly effective for this purpose.

  含有木质素的纸浆或纸张，特别是化学机械或热机械纸浆或纸张，如果它们含有有效的阻化胺化合物（最好是亚硝基自由基，羟胺或其铵盐），则具有增强的抗黄变性能。当与来自紫外线吸收剂、聚合抑制剂、亚硝基醇、荧光增白剂、金属螯合剂、含硫稳定剂、金属盐和二烯化合物等组成的一种或多种协同添加剂一起使用时，通常可以进一步提高其性能。亚硝基自由基、羟胺或其盐、苯并三唑或苯并酚类紫外线吸收剂和金属螯合剂的组合尤其有效。选择的1-氧基-2,2,6,6-四甲基哌啶-4-醇和选择的羟胺盐衍生物是新的化合物，出乎意料地有效。
• Stabilizers derived from N-hydroxy hindered amines by Michael addition reactions
  申请人：CIBA-GEIGY AG

  公开号：EP0389422A2

  公开（公告）日：1990-09-26

  The Michael addition products of N-hydroxy hindered amines with alpha,beta-unsaturated carbonyl compounds including derivatives of esters, amides, imides and anhydrides are effective stabilizers for protecting organic polymers from the deleterious effects of actinic light.

  N- 羟基受阻胺与α、β- 不饱和羰基化合物（包括酯、酰胺、酰亚胺和酸酐的衍生物）的迈克尔加成产物是保护有机聚合物免受光辐射有害影响的有效稳定剂。
• INHIBITION OF PULP AND PAPER YELLOWING USING NITROXIDES AND OTHER COADDITIVES
  申请人：Ciba Specialty Chemicals Holding Inc.

  公开号：EP1000032A1

  公开（公告）日：2000-05-17
• US5015678A
  申请人：——

  公开号：US5015678A

  公开（公告）日：1991-05-14
• US6254724B1
  申请人：——

  公开号：US6254724B1

  公开（公告）日：2001-07-03