dimethyl phenylmaleate | 89330-93-8

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: dimethyl phenylmaleate
• 英文别名: Dimethyl 2-phenylbut-2-enedioate
• CAS: 89330-93-8
• 化学式: C₁₂H₁₂O₄
• 分子量: 220.225
• InChiKey: UCAORXMJCYVKCA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.8
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  环己烷 、 dimethyl phenylmaleate 在 二苯醚 、 10-甲基-9-均三甲苯基吖啶高氯酸盐 作用下， 以 乙腈 为溶剂， 以85 %的产率得到
  参考文献：
  名称：

  增强高氯酸吖啶的反应性：利用氧化还原介体在氢原子转移光催化中活化微量氯

  摘要：

  高氯酸吖啶鎓和四氟硼酸盐是常用的光催化剂，具有相似的光物理特性。然而，相对于四氟硼酸盐，高氯酸盐始终表现出优异的催化性能。在一次偶然的发现中，我们揭示了源自吖啶高氯酸盐的痕量氯阴离子的潜在潜力。当与二苯醚或联苯等氧化还原介体结合时，痕量氯阴离子表现出显着的氢原子转移（HAT）催化能力。这种创新方法通过 Giese 加成和 Minisci 型交叉脱氢偶联反应，能够有效激活各种未激活的 C-H 键，特别是初级 C(sp 3 )-H 键。我们的系统是 C-H 键活化最有效的 HAT 催化系统之一，展现出显着的底物多样性。此外，使用停流微管（SFMT）反应器提高了反应效率，实现克级合成并无缝过渡到实际规模生产的连续流动工艺。

  DOI：

  10.1021/acscatal.4c01910
• 作为产物：
  描述：

  Potassium benzoate 、 丁炔二酸二甲酯 在 1,10-菲罗啉 、 copper(I) bromide 、 tris-(dibenzylideneacetone)dipalladium(0) 、 1,4-双(二苯基膦)丁烷 、 溶剂黄146 作用下， 以 二甲基亚砜 为溶剂， 反应 24.25h， 以16%的产率得到dimethyl phenylmaleate
  参考文献：
  名称：

  Decarboxylative olefination of potassium benzoates via bimetallic catalysis strategy

  摘要：

  A novel synthesis of styrene derivatives through decaroxylative olefination of potassium benzoates with alkynes using Pd(2)dba(3)/CuBr as catalyst system has been developed. The protocol proceeded smoothly and in most cases Z-alkene was the main product. Electron-rich potassium benzoates reacted more efficiently than those of electron-deficient substrates. Heteroaromatic and electron-deficient aryl alkynes were not consistent with this transformation.[GRAPHICS].

  DOI：

  10.1007/s00706-018-2267-y

文献信息

• Method for the preparation of aromatic chloroformates
  申请人：Davis Charles Gary

  公开号：US20060293535A1

  公开（公告）日：2006-12-28

  A method for preparing an aromatic chloroformate comprising, introducing a mixture of at least one aromatic hydroxyl compound, phosgene, at least one solvent, and at least one organic base into a flow reactor to obtain a unidirectionally flowing reaction mixture. The unidirectionally flowing reaction mixture is maintained at a temperature between about 0° C. and about 60° C. to produce a single product stream comprising an aromatic chloroformate.

  一种制备芳香氯甲酸酯的方法包括，将至少一种芳香羟基化合物、光气、至少一种溶剂和至少一种有机碱的混合物引入流动反应器中，以获得单向流动的反应混合物。将单向流动的反应混合物保持在约0°C至约60°C的温度下，以产生包含芳香氯甲酸酯的单一产物流。
• [EN] STERICALLY HINDERED AMINE STABILIZERS<br/>[FR] STABILISANTS D'AMINES À ENCOMBREMENT STÉRIQUE
  申请人：BASF SE

  公开号：WO2010142572A1

  公开（公告）日：2010-12-16

  The instant invention pertains to hindered amine compounds having at least two nitrogen atoms with different basicity. One part is substituted on the N-atom by alkoxy moieties and the other part is substituted on the N-atom by a hydroxy-alkyl moiety. These materials are particularly effective in stabilizing polymers, especially thermoplastic polyolefins, against the deleterious effects of oxidative, thermal and actinic radiation. The compounds are also particularly effective in stabilizing acid catalyzed and ambient cured coatings systems.

  这项瞬时发明涉及具有至少两个氮原子且碱度不同的受阻胺化合物。其中一部分在N原子上被烷氧基团取代，另一部分在N原子上被一个羟基-烷基基团取代。这些材料在稳定聚合物方面特别有效，尤其是热塑性聚烯烃，可以抵御氧化、热和光辐射的有害影响。这些化合物在稳定酸催化和环境固化的涂层系统方面也特别有效。
• 4-Formyl amino-n-methylpiperidine derivatives, the use thereof as stabilisers and organic material stabilised therewith
  申请人：——

  公开号：US20030083406A1

  公开（公告）日：2003-05-01

  The present invention relates to 4-formylamino-N-methylpiperidine derivatives of the formula (I) 1 where the variables are as defined in the Description, to a process for preparing these piperidine derivatives, to the use of these piperidine derivatives of the invention, or prepared according to the invention, for stabilizing organic material, in particular for stabilizing plastics or coating materials, and also to the use of these piperidine derivatives of the invention, or prepared according to the invention, as light stabilizers or stabilizers for wood surfaces. The present invention further relates to stabilized organic material which comprises these piperidine derivatives of the invention or prepared according to the invention.

  本发明涉及通式(I)的4-甲酰氨基-N-甲基哌啶衍生物 1 其中变量如说明书中所定义，涉及制备这些哌啶衍生物的方法，涉及这些本发明的哌啶衍生物或按照本发明制备的哌啶衍生物用于稳定有机材料，特别是用于稳定塑料或涂料材料，还涉及这些本发明的哌啶衍生物或按照本发明制备的哌啶衍生物作为光稳定剂或木材表面的稳定剂的使用。 本发明还涉及包含这些本发明的哌啶衍生物或按照本发明制备的哌啶衍生物的稳定有机材料。
• Method for the preparation of aliphatic chloroformates
  申请人：Davis Charles Gary

  公开号：US20060084822A1

  公开（公告）日：2006-04-20

  A method for preparing an aliphatic chloroformate comprising, introducing a mixture of at least one aliphatic hydroxyl compound, phosgene, at least one solvent, and optionally at least one organic base into a flow reactor to obtain a unidirectional flowing reaction mixture. The at least one aliphatic hydroxyl compound comprises at least one aliphatic hydroxyl group. The unidirectional flowing reaction mixture is maintained at a temperature between about 0° C. and about 60° C. to produce a single product stream comprising an aliphatic chloroformate.

  制备脂肪基氯甲酸酯的方法包括，将至少一种脂肪基羟基化合物、光气、至少一种溶剂以及可选的至少一种有机碱的混合物引入流动反应器中，以获得单向流动的反应混合物。至少一种脂肪基羟基化合物包括至少一种脂肪基羟基。将单向流动的反应混合物保持在约0°C至约60°C的温度下，以产生包含脂肪基氯甲酸酯的单一产物流。
• Thioimidazolidine derivatives as light stabilizers for polymers
  申请人：——

  公开号：US20030109609A1

  公开（公告）日：2003-06-12

  A compound of the formula (I) wherein G 1 , G 2 , G 3 and G 4 are independently of one another C 1 -C 18 alkyl or C 5 -C 12 cycloalkyl or the radicals G 1 and G 2 and the radicals G 3 and G 4 form independently of one another, together with the carbon atom they are attached to, C 5 -C 12 cycloalkyl; R is hydrogen, C 1 -C 18 alkyl, oxyl, —OH, —CH 2 CN, C 3 -C 6 alkenyl, C 3 -C 8 alkynyl, C 7 -C 12 phenylalkyl unsubstituted or substituted on the phenyl radical by C 1 -C 4 alkyl and/or C 1 -C 4 alkoxy; C 1 -C 8 acyl, C 1 -C 18 alkoxy, C 1 -C 18 hydroxyalkoxy, C 2 -C 18 alkenyloxy, C 5 -C 12 cycloalkoxy, C 7 -C 12 phenylalkoxy unsubstituted or substituted on the phenyl radical by C 1 -C 4 alkyl and/or C 1 -C 4 alkoxy: C 1 -C 18 alkanoyloxy, (C 1 -C 18 alkoxy)carbonyl, glycidyl or a group —CH 2 CH(OH)(G) with G being hydrogen, methyl or phenyl; n is 1, 2, 3 or 4; and X is an organic radical of a valency equal to n; and when n is 2, 3 or 4, each of the radicals G 1 , G 2 , G 3 , G 4 and R can have the same or a different meaning in the units of the formula (II), is useful for stabilizing an organic material against degradation induced by light, heat or oxidation.

  式（I）的化合物，其中G1、G2、G3和G4彼此独立地是C1-C18烷基或C5-C12环烷基，或者基团G1和G2以及基团G3和G4彼此独立地与它们附着的碳原子一起形成C5-C12环烷基；R是氢、C1-C18烷基、氧基、—OH、—CH2CN、C3-C6烯基、C3-C8炔基、C7-C12苯基烷基，未取代或通过C1-C4烷基和/或C1-C4烷氧基取代苯基上的苯基基团；C1-C8酰基、C1-C18烷氧基、C1-C18羟基烷氧基、C2-C18烯氧基、C5-C12环烷氧基，未取代或通过C1-C4烷基和/或C1-C4烷氧基取代苯基上的C7-C12苯基氧基；C1-C18烷酰氧基、（C1-C18烷氧基）羰基、环氧乙基或一个基团—CH2CH(OH)(G)，其中G是氢、甲基或苯基；n为1、2、3或4；X是价数等于n的有机基团；当n为2、3或4时，式（II）的各单元中的G1、G2、G3、G4和R的每一个可以具有相同或不同的含义，对于抵抗光、热或氧化引起的有机材料降解具有稳定作用。