2,3,6-trimethyl-2,6-diethyl-4-oxo-piperidine | 61682-93-7

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 哌啶类
• 英文名称: 2,3,6-trimethyl-2,6-diethyl-4-oxo-piperidine
• 英文别名: 2,6-diethyl-2,3,6-trimethylpiperidin-4-one；2,6-diethyl-2,3,6-trimethyl-4-piperidone；2,6-diethyl-2,3,6-trimethyl-piperidin-4-one；2,6-Diaethyl-2,3,6-trimethyl-piperidin-4-on；2,6-diethyl-2,3,6-trimethyl-piperidine-4-one；2,3,6-trimethyl-2,6-diethyl-4-oxopiperidine
• CAS: 61682-93-7
• 化学式: C₁₂H₂₃NO
• 分子量: 197.321
• InChiKey: TUOLXKNMFCOMGN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  29.1
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2,3,6-trimethyl-2,6-diethyl-4-oxo-piperidine 在 sodium hydroxide 、 sodium tetrahydroborate 作用下， 以 水 、 异丙醇 为溶剂， 反应 5.0h， 以97.2%的产率得到2,6-二乙基-2,3,6-三甲基哌啶-4-醇
  参考文献：
  名称：

  环状硝基氧基片段的立体和极性效应对C-ON键均解速率常数的影响

  摘要：

  烷氧基胺和持久性硝氧基自由基是氮氧化物介导的自由基聚合（NMP）的重要调节剂。因为聚合时间随着聚合物链和硝酰基部分之间C-ON键均化的速率常数的增加而减少，所以影响裂解速率常数的因素引起了人们的极大兴趣。在这里，我们介绍在新的环烷氧基胺模型中C-ON键断裂的速率常数（k d）的测量。的9个新烷氧基胺和33个他人通过文献中给出的均裂速率常数分析与关于极性感应/场（σ的贡献我）效应，空间（Ë小号）效应和硝酰基部分的分子内氢键（IHB）的效果，使用由商品型号建立的多参数方程，即日志（ķ d / ķ d，0）=-3.07σ我- 0.88 ë小号- 5.88。建立了七元环和八元环的循环空间常数r（R i）。结果的分析为烷氧基胺构象对k d值的重要性提供了新的见解。

  DOI：

  10.1021/ma0512612
• 作为产物：
  描述：

  2,4,6-三乙基-2,6-二甲基-1,5-二氢嘧啶 在 盐酸 、 溴化铵 、 potassium carbonate 作用下， 以 甲醇 为溶剂， 生成 2,3,6-trimethyl-2,6-diethyl-4-oxo-piperidine
  参考文献：
  名称：

  Stabilization of synthetic polymers by penta-or-hexa-substituted

  摘要：

  聚合物，无论是天然的还是合成的，通过引入特定的2,2,6,6-四取代-4-哌啶醇衍生物来稳定，以防止由热和/或光引起的降解，这些衍生物在3位和/或5位还含有一个烷基、烯基、炔基或芳烷基的取代基。

  公开号：

  US04141883A1

文献信息

• PREPARATION OF FUNCTIONALIZED ALKOXYAMINE INITIATOR AND ITS USE
  申请人：——

  公开号：US20030236368A1

  公开（公告）日：2003-12-25

  A one-pot process for the preparation of functional alkoxyamines of the general formula (I), 1 is disclosed. The process entails (1) reacting an oxidizing agent with a sterically hindered secondary amine to produce an aqueous phase and a nitroxyl radical (2) removing the aqueous phase and adding to the nitroxyl radical one or more vinyl monomer(s) conforming to a formula and a system which produces free radicals. Also disclosed is a process of polymerizing monomers using the functional alkoxyamine.

  披露了一种用于制备具有一般公式（I）的功能性烷氧基胺的一锅法工艺。该工艺包括：（1）使用氧化剂与空间位阻较大的二级胺反应，产生水相和硝基氧自由基；（2）移除水相，并向硝基氧自由基中加入一种或多种符合公式的乙烯基单体以及能够产生自由基的体系。还披露了一种使用功能性烷氧基胺聚合单体的工艺。
• In-situ polymerization of monoethylenically unsaturated monomers with secondary amines
  申请人：——

  公开号：US20040122270A1

  公开（公告）日：2004-06-24

  A process for the preparation of any of well-defined homopolymers, random and block copolymers is disclosed. The process that entails forming a mixture of monomers, a hindered secondary amine and an oxidizing agent is characterized in the absence of any additional free-radical initiator.

  披露了一种用于制备任何明确定义的均聚物、随机共聚物和嵌段共聚物的方法。该过程包括形成单体的混合物、受阻的二级胺和氧化剂，其特征在于没有任何额外的自由基引发剂。
• Process for the synthesis for alkoxy amines and their use in controlled radical polymerization
  申请人：——

  公开号：US20040002606A1

  公开（公告）日：2004-01-01

  A one-pot process for the preparation of alkoxyamines conforming to formulae (I) or (II), preferably (I) 1 is disclosed. The process entails (1) reacting of an oxidizing agent (A) with a sterically hindered secondary amine of the general formula (III), 2 in a water-containing medium to form a reaction product and an aqueous phase, (2) removing of the aqueous phase, and (3) (adding to the reaction product a free-radical initiator (B) under conditions that promote the decomposition of the initiator to generate free radicals. Also disclosed is a process for polymerizing monomers, the process using the alkoxyamine prepared by the inventive process.

  披露了一种用于制备符合公式(I)或(II)，最好是(I)的烷氧基胺的一锅法工艺。该工艺包括：(1)使氧化剂(A)与具有空间位阻的二级胺反应，该二级胺的通用公式为(III)，在水含介质中形成反应产物和水相，(2)移除水相，以及(3)在促进分解引发剂以产生自由基的条件下，向反应产物中添加自由基引发剂(B)。还披露了一种用于聚合单体的工艺，该工艺使用由发明工艺制备的烷氧基胺。
• 1-alkoxy-polyallkyl-piperidine derivatives and their use as polymerization regulators
  申请人：Ciba Specialty Chemicals Corporation

  公开号：US06353107B1

  公开（公告）日：2002-03-05

  The present invention relates to 1-alkoxy-polyalkyl-piperidine derivatives containing a structural element of formula (I) wherein G1, G2, G3, G4 are independently C1-C6alkyl with the proviso that at least one is not methyl or G1 and G2 or G3 and G4, or G1 and G2 and G3 and G4 together form a C5-C12cycloalky group; G5, G6 independently are H, C1-C18alkyl, phenyl, naphthyl or a group COOC1-C18alkyl and X represents a group such that the free radical X. derived from X is capable of initiating polymerization of ethylenically unsaturated monomers, with the proviso that compounds A1 and A2 are excluded Further subjects of the invention are a polymerizable composition comprising a) at least one ethylenically unsaturated monomer and b) a 1-alkoxy-polyalkyl-piperidine derivative, a process for polymerizing ethylenically unsaturated monomers, and the use of 1-alkoxy-polyalkyl-piperidine derivatives for controlled polymerization. The intermediate N-oxyl derivatives, a composition of the N-oxyl derivatives with ethylenically unsaturated monomers and a free radical initiator X., as well as a process for polymerization are also subjects of the present invention.

  本发明涉及含有结构元素的1-烷氧基-多烷基-哌啶衍生物（I） 其中 G1、G2、G3、G4独立地为C1-C6烷基，但至少有一个不是甲基，或者G1和G2或G3和G4，或者G1和G2和G3和G4一起形成C5-C12环烷基； G5、G6独立地为H、C1-C18烷基、苯基、萘基或COOC1-C18烷基，X代表一个使得从X得到的自由基X能够引发乙烯基不饱和单体聚合的基团，但排除化合物A1和A2 本发明的另一主题是包括a）至少一种乙烯基不饱和单体和b）1-烷氧基-多烷基-哌啶衍生物的可聚合组合物，一种聚合乙烯基不饱和单体的方法，以及1-烷氧基-多烷基-哌啶衍生物用于受控聚合的用途。中间体N-氧基衍生物，N-氧基衍生物与乙烯基不饱和单体的组合物和自由基引发剂X，以及一种聚合方法也是本发明的主题。
• Hydroxylamine esters as polymerization initiators
  申请人：——

  公开号：US20030216494A1

  公开（公告）日：2003-11-20

  The invention relates to novel cyclic and open-chain hydroxylamine esters and polymerizable compositions comprising these hydroxylamine esters and an ethylenically unsaturated monomer or oligomer. The invention also relates to use as polymerization initiators and to the use of known hydroxylamine esters selected from the group consisting of HALS compounds and the novel hydroxylamine esters for the controlled degradation of polypropylene and for achieving a controlled increase in the molecular weight of polyethylene.

  该发明涉及新型环状和开链羟胺酯以及包括这些羟胺酯和乙烯基不饱和单体或寡聚物的可聚合组合物。该发明还涉及用作聚合引发剂以及用于控制聚丙烯降解和实现聚乙烯分子量控制增加的已知羟胺酯，所述羟胺酯来自HALS化合物和新颖羟胺酯的组合。