1-(1-Hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)-1h-pyrrole-2,5-dione | 15178-63-9

• 物质功能分类: 有机原料 - 杂环化合物
• 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: 1-(1-Hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)-1h-pyrrole-2,5-dione
• 英文别名: 1-(1-hydroxy-2,2,6,6-tetramethylpiperidin-4-yl)pyrrole-2,5-dione
• CAS: 15178-63-9；94751-70-9
• 化学式: C₁₃H₂₀N₂O₃
• 分子量: 252.31
• InChiKey: ATLHCOBCOLZMIK-UHFFFAOYSA-N

物化性质

• 熔点：
  91-94 °C
• 溶解度：
  可溶于氯仿（少许）、甲醇（少许）

计算性质

• 辛醇/水分配系数(LogP)：
  0.8
• 重原子数：
  18
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.69
• 拓扑面积：
  60.8
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 危险品标志：
  Xi
• 危险类别码：
  R36/37/38
• WGK Germany：
  3
• 安全说明：
  S24/25

文献信息

• PROCESS FOR PREPARING A COMPOUND BY A NOVEL SANDMEYER-LIKE REACTION USING A NITROXIDE RADICAL COMPOUND AS A REACTION CATALYST
  申请人：DAIICHI SANKYO COMPANY, LIMITED

  公开号：US20130144061A1

  公开（公告）日：2013-06-06

  The present invention provides a novel process for preparing a substituted aromatic compound such as an aromatic halo compound or a salt thereof through a transformation reaction of an aromatic diazonium salt from an aromatic amino compound at stable high yields utilizing a novel Sandmeyer-like reaction using a nitroxide radical compound as a reaction catalyst.

  本发明提供了一种新型方法，通过使用一种新型的桑迷尔反应，利用一种亚硝基自由基化合物作为反应催化剂，从芳香氨基化合物的芳香重氮盐进行转化反应，以稳定高产率制备取代芳香化合物，如芳香卤素化合物或其盐。
• SELECTIVE OXIDATION OF TRITERPENES EMPLOYING TEMPO
  申请人：Krasutsky Pavel A.

  公开号：US20090076290A1

  公开（公告）日：2009-03-19

  The present invention provides a process of preparing betulin-28-aldehyde from betulin. The process includes contacting betulin with a compound of formula (I), e.g., TEMPO (2,2,6,6-tetramethylpiperidine 1-oxyl) for a period of time effective to provide betulin-28-aldehyde. The present invention also provides a process of preparing betulinic acid. The process includes contacting betulin with a composition that includes: sodium hypochlorite (NaOCl); sodium chlorite (NaClO 2 ), potassium chlorite (KClO 2 ), or a combination thereof; and a compound of formula (I), e.g., TEMPO (2,2,6,6-tetramethylpiperidine 1-oxyl); for a period of time effective to provide betulinic acid.

  本发明提供了一种从白桦酸制备白桦醛的方法。该方法包括将白桦酸与式(I)的化合物接触，例如TEMPO（2,2,6,6-四甲基哌啶1-氧自由基），以有效时间提供白桦醛。本发明还提供了一种制备白桦酸的方法。该方法包括将白桦酸与包括：次氯酸钠（NaOCl）；次氯酸钠（NaClO2）、次氯酸钾（KClO2）或其组合物；以及式(I)的化合物，例如TEMPO（2,2,6,6-四甲基哌啶1-氧自由基）的组合物接触，以有效时间提供白桦酸。
• Derivatives of 1-oxyl-4-hydroxy-or 4-amino-2,2,6,6-tetramethylpiperidine as polymerization inhibitors for (meth) acrylate monomers
  申请人：Ciba Holding Inc.

  公开号：EP2030963A2

  公开（公告）日：2009-03-04

  The invention relates to selected derivatives of 1-oxyl-2,2,6,6-tetramethyl-4-hydroxy-piperidine and 1-oxyl-2,2,6,6-tetramethyl-4-aminopiperidine, which are effective as inhibitors to prevent the premature polymerization of acrylic and methacrylic acids, their esters, their amides, vinyl acetate and acrylonitrile in the presence of water.

  本发明涉及 1-氧乙基-2,2,6,6-四甲基-4-羟基哌啶和 1-氧乙基-2,2,6,6-四甲基-4-氨基哌啶的精选衍生物，这些衍生物可有效用作抑制剂，防止丙烯酸和甲基丙烯酸、它们的酯、它们的酰胺、醋酸乙烯酯和丙烯腈在有水的情况下过早聚合。
• Modified butyl rubber composition
  申请人：The Yokohama Rubber Co., Ltd.

  公开号：EP2045289A1

  公开（公告）日：2009-04-08

  A modified butyl rubber composition comprising a butyl rubber modified by mixing, under heating, (a) a compound having a nitroxide free-radical in the molecule thereof, which is stable at an ordinary temperature even in the presence of oxygen, (b) a radical initiator, and (c) a bi- or more-functional radical polymerizable monomer and further by compounded with (d) a bi- or more- functional radical polymerizable monomer, which is different from the ingredient (c).

  一种改性丁基橡胶组合物，包括通过在加热条件下混合以下物质而改性的丁基橡胶：(a) 其分子中含有亚硝基自由基的化合物，该化合物在常温下即使有氧气存在也很稳定；(b) 自由基引发剂；(c) 双官能团或多官能团可聚合单体，并进一步与(d) 不同于成分(c)的双官能团或多官能团可聚合单体复合。
• Polymerizable composition, light-shielding color filter, black curable composition, light-shielding color filter for solid-state image pickup device and method of producing the same, and solid-state image pickup device
  申请人：FUJIFILM Corporation

  公开号：EP2112182A1

  公开（公告）日：2009-10-28

  A polymerizable composition includes a titanium black dispersion containing titanium black and an alkali-soluble resin having at least one unsaturated double bond, a polymerizable compound, and a photopolymerization initiator. A black curable composition includes titanium black, an alkali-soluble resin having a weight average molecular weight of from 2000 to less than 20,000 or a weight average molecular weight of 20,000 to 100,000, a solvent, a photopolymerization initiator, and a compound having an ethylenic unsaturated double bond. A light-shielding color filter having a colored region is formed using the polymerizable composition or the black curable composition. A solid-state image pickup device has the light-shielding color filter.

  一种可聚合组合物包括含有钛黑和至少有一个不饱和双键的碱溶性树脂的钛黑分散体、一种可聚合化合物和一种光聚合引发剂。一种黑色固化组合物包括钛黑、重量平均分子量为 2000 至小于 20000 或重量平均分子量为 20000 至 100000 的碱溶性树脂、溶剂、光聚合引发剂和具有乙烯不饱和双键的化合物。利用可聚合组合物或黑色固化组合物形成具有彩色区域的遮光彩色滤光片。固态图像拾取装置具有该遮光彩色滤光片。