dimethyl 1-methyl-1H-pyrrole-2,5-dicarboxylate | 1757-30-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: dimethyl 1-methyl-1H-pyrrole-2,5-dicarboxylate
• 英文别名: 1-Methyl-pyrrol-2,5-dicarbonsaeure-dimethylester；1-methyl-pyrrole-2,5-dicarboxylic acid dimethyl ester；1H-Pyrrole-2,5-dicarboxylic acid, 1-methyl-, 2,5-dimethyl ester；dimethyl 1-methylpyrrole-2,5-dicarboxylate
• CAS: 1757-30-8
• 化学式: C₉H₁₁NO₄
• 分子量: 197.191
• InChiKey: MLMNFXCRTCBAJT-UHFFFAOYSA-N

物化性质

• 熔点：
  80-81 °C
• 沸点：
  288.1±20.0 °C(Predicted)
• 密度：
  1.19±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  57.5
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  dimethyl 1-methyl-1H-pyrrole-2,5-dicarboxylate 在 肼 作用下， 生成 1-methyl-pyrrole-2,5-dicarboxylic acid dihydrazide
  参考文献：
  名称：

  METALATION OF PYRROLE, 1-METHYLPYRROLE, AND 1-PHENYLPYRROLE WITH n-BUTYLLITHIUM

  摘要：

  DOI：

  10.1021/jo01120a012
• 作为产物：
  描述：

  N-甲基吡咯 在 正丁基锂 、 乙醚 、 硫酸 作用下， 生成 dimethyl 1-methyl-1H-pyrrole-2,5-dicarboxylate
  参考文献：
  名称：

  METALATION OF PYRROLE, 1-METHYLPYRROLE, AND 1-PHENYLPYRROLE WITH n-BUTYLLITHIUM

  摘要：

  DOI：

  10.1021/jo01120a012

文献信息

• Direct Alkoxycarbonylation of Heteroarenes via Cu-Mediated Trichloromethylation and In Situ Alcoholysis
  作者：Wenkun Luo、Kai Jiang、Yingwei Li、Huanfeng Jiang、Biaolin Yin

  DOI：10.1021/acs.orglett.0c00582

  日期：2020.3.6

  three components (i.e., heteroarene, alcohol, and CHCl3). The copper additive was confirmed to simultaneously promote the reaction in three pathways: oxidant cracking, single electron transfer, and alcoholysis. By means of this protocol, various functionalized furancarboxylates and other heteroarenecarboxylates were facilely obtained in moderate to good yields.

  我们报告了通过一步一步的铜介导的三个成分（即杂芳烃，醇和CHCl3）的一步反应，将呋喃及其他杂芳烃直接烷氧基羰基化的有效方法。证实了铜添加剂可同时通过三个途径促进反应：氧化剂裂解，单电子转移和醇解。通过该方案，可以容易地以中等至良好的产率获得各种官能化的呋喃羧酸盐和其他杂芳基羧酸盐。
• MODIFIER FOR AROMATIC POLYESTER AND AROMATIC POLYESTER RESIN COMPOSITION COMPRISING THE SAME
  申请人：TABATA Masayoshi

  公开号：US20110224343A1

  公开（公告）日：2011-09-15

  The present invention provides a modifier for aromatic polyesters which enhances the melt fluidity of aromatic polyesters without a significant decrease in the heat resistance of the aromatic polyesters, and an aromatic polyester resin composition including the modifier for aromatic polyesters. The present invention relates to a modifier for aromatic polyesters comprising polyhydric phenol residues and residues of aromatic polycarboxylic acid, acid halide or acid anhydride thereof, and the modifier comprises a material having a structure composed of a first residue selected from the group consisting of divalent residues represented by Formula (I): —Ar—W 1 x —Ar— and by Formula (II): —Ar—, the first residues being bonded to two identical or different second residues selected from the group consisting of monovalent residues represented by Formula (III): and monovalent residues represented by Formula (IV): —O—C(O)—R 7 —.

  本发明提供了一种用于芳香族聚酯的改性剂，可以增强芳香族聚酯的熔融流动性，而不明显降低芳香族聚酯的耐热性，以及包括该改性剂的芳香族聚酯树脂组合物。本发明涉及一种用于芳香族聚酯的改性剂，包括多羟基酚残基和芳香族多羧酸、酸卤或其酸酐残基，该改性剂包括具有以下结构的材料：第一残基，选择自由式(I)所代表的二价残基：—Ar—W1x—Ar—和自由式(II)所代表的：—Ar—，第一残基与选择自由式(III)所代表的单价残基：和自由式(IV)所代表的单价残基：—O—C(O)—R7—的两个相同或不同的第二残基结合。
• METHOD FOR THE HYDROFORMYLATION OF OLEFINS
  申请人：Sigl Marcus

  公开号：US20100048959A1

  公开（公告）日：2010-02-25

  The present invention relates to a process for preparing hydroformylation products of olefins having at least four carbon atoms, in which a high proportion of both the linear C i -olefins having a terminal double bond comprised in the olefin-comprising feed used and of the linear C i -olefins having an internal double bond is converted into hydroformylation products. Furthermore, the invention relates to a process for preparing 2-propylheptanol which comprises such a hydroformylation process.

  本发明涉及一种制备至少具有四个碳原子的烯烃的羰基化产物的过程，其中将含有末端双键的线性C1-烯烃和含有内部双键的线性C1-烯烃的高比例转化为羰基化产物。此外，本发明涉及一种制备2-丙基庚醇的方法，其中包括这样的羰基化过程。
• SEPARATION OF ACIDS FROM CHEMICAL REACTION MIXTURES BY MEANS OF IONIC LIQUIDS
  申请人：Volland Martin

  公开号：US20080083606A1

  公开（公告）日：2008-04-10

  Process for preparing aminodihalophosphines, diaminohalophosphines, triaminophosphines, phosphorous ester diamides, aminophosphines, diaminophosphines, phosphorous ester amide halides and aminophosphine halides with elimination of an acid in the presence of an auxiliary base, wherein the auxiliary base b) and the acid form a salt which is liquid at temperatures at which the desired product is not significantly decomposed during the process of separating off the liquid salt and c) the salt of the auxiliary base forms two immiscible liquid phases with the desired product or the solution of the desired product in a suitable solvent.

  制备氨基二卤代膦、双氨基卤代膦、三氨基膦、磷酸酯二酰胺、氨基膦、双氨基膦、磷酸酯酰胺卤和氨基膦卤的过程，其中在辅助碱存在下消除酸，该辅助碱b）和酸形成一种盐，在分离液态盐的过程中，所需产物在不显著分解的温度下，该盐是液态的；c）辅助碱的盐与所需产物或所需产物在适当溶剂中的溶液形成两个不相溶的液态相。
• AROMATIC POLYESTER
  申请人：Muroran Institute of Technology

  公开号：EP2479203A1

  公开（公告）日：2012-07-25

  The present invention provides an aromatic polyester which is substantially free from the occurrence of coloration and retains significantly high transparency even after being thermally processed at high temperature and which has high flowability. The aromatic polyester contains a polyhydric phenol residue and a residue of any one of aromatic polycarboxylic acid, halide thereof, and anhydride thereof, and terminals of the aromatic polyester have a structure represented by the formula -C(O)-R. The aromatic polyester has an end-capping rate of 90% or higher and a weight average molecular weight (Mw) ranging from 3,000 to 1,000,000.

  本发明提供了一种芳香族聚酯，该聚酯基本上不会发生着色，即使在高温热加工后仍能保持明显的高透明度，并且具有高流动性。芳香族聚酯含有多羟基苯酚残留物和芳香族多羧酸、其卤化物和其酸酐中任意一种的残留物，芳香族聚酯的端基具有式 -C(O)-R 所代表的结构。芳香族聚酯的端盖率为 90% 或更高，重量平均分子量（Mw）为 3,000 至 1,000,000 之间。