2-Methyl-5-ethylpyrrol | 765-94-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 2-Methyl-5-ethylpyrrol
• 英文别名: 2-Ethyl-5-methyl-pyrrol；2-ethyl-5-methyl-pyrrole；2-Aethyl-5-methyl-pyrrol；1H-Pyrrole, 2-ethyl-5-methyl；2-ethyl-5-methyl-1H-pyrrole
• CAS: 765-94-6
• 化学式: C₇H₁₁N
• 分子量: 109.171
• InChiKey: GXSYXPDGMUORDR-UHFFFAOYSA-N

物化性质

• 沸点：
  174-176 °C
• 密度：
  0.9135 g/cm3
• 保留指数：
  1094

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  8
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  15.8
• 氢给体数：
  1
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  2-Methyl-5-ethylpyrrol 在 乙醇 、 盐酸羟胺 、 sodium carbonate 作用下， 生成 heptane-2,5-dione dioxime
  参考文献：
  名称：

  Fischer; Goldschmidt; Nuessler, Justus Liebigs Annalen der Chemie, 1931, vol. 486, p. 33

  摘要：

  DOI：
• 作为产物：
  描述：

  1-(5-甲基-1H-吡咯-2-基)乙酮 在 sodium ethanolate 、 一水合肼 作用下， 生成 2-Methyl-5-ethylpyrrol
  参考文献：
  名称：

  Fischer; Sturm; Friedrich, Justus Liebigs Annalen der Chemie, 1928, vol. 461, p. 250,263

  摘要：

  DOI：

文献信息

• METHODS FOR THE CONVERSION OF A SUBSTITUTED FURAN TO A SUBSTITUTED PYRROLE
  申请人：Kreischer Bruce E.

  公开号：US20120083609A1

  公开（公告）日：2012-04-05

  The present invention discloses processes for producing substituted pyrrole compounds, such as 2,5-disubstituted pyrroles. Synthetic processes which directly convert substituted furan compounds to substituted pyrrole compounds, via a reaction of the substituted furan compound with ammonia and/or an ammonium salt in the presence of a catalyst, also are described.

  本发明揭示了生产取代吡咯化合物的过程，例如2,5-二取代吡咯化合物。还描述了一种合成过程，该过程通过将取代呋喃化合物与氨和/或铵盐在催化剂存在下反应，直接转化为取代吡咯化合物。
• PRODUCTION METHOD OF ALPHA-OLEFIN LOW POLYMER
  申请人：Emoto Hiroki

  公开号：US20090326297A1

  公开（公告）日：2009-12-31

  The object of the present invention is to provide a production method of an α-olefin low polymer, wherein a low polymer of an α-olefin is obtained in high yield. The present invention relates to that when an inert gas is allowed to exist in a gas phase part of a reactor 10 in the proportion of from 0.010 to 50.00% by volume, and an α-olefin is subjected to low polymerization reaction in a solvent in the presence of a chromium series catalyst comprising a chromium compound (a), at lest one nitrogen-containing compound (b) selected from the group consisting of an amine, an amide and an imide, and an aluminum-containing compound (c), an unreacted α-olefin and the solvent separated from a reaction liquid are circulated into the reactor 10 , and where the proportion of the inert gas in the gas phase exceeds 50.00% by volume, the inert gas is discharged outside the reaction system from a gas phase part of the reactor 10 and/or a circulation piping 21 of an unreacted α-olefin.

  本发明的目的是提供一种α-烯烃低聚物的生产方法，其中通过高产率获得α-烯烃的低聚物。本发明涉及当在反应器10的气相部分中允许存在惰性气体的体积比为0.010至50.00%时，在存在包括铬化合物（a）、至少一种从胺、酰胺和亚胺组成的氮含量化合物（b）以及含铝化合物（c）的铬系催化剂的情况下，将α-烯烃在溶剂中进行低聚合反应，未反应的α-烯烃和从反应液中分离的溶剂循环进入反应器10，当气相中惰性气体的比例超过50.00%时，将惰性气体从反应器10的气相部分和/或未反应的α-烯烃的循环管道21中排出到反应系统外。
• Preparation of an Olefin Oligomerization Catalyst
  申请人：Sydora Orson L.

  公开号：US20130150642A1

  公开（公告）日：2013-06-13

  This disclosure provides for new catalyst systems and new methods for preparing and using the catalyst systems for generating a trimerization product. In an aspect, the new catalyst systems comprise a chromium carboxylate that is prepared by anhydrous metathesis. In another aspect, the catalyst system comprise a chromium carboxylate that is prepared by anhydrous metathesis and a metal pyrrolide compound. The catalyst systems imparts improved performance and/or reduced catalyst system cost to an olefin trimerization process.

  本公开提供了新的催化剂系统和新的方法，用于制备和使用催化剂系统生成三聚物产物。在一个方面，新的催化剂系统包括通过无水交换反应制备的铬羧酸盐。在另一个方面，催化剂系统包括通过无水交换反应制备的铬羧酸盐和金属吡咯烷化合物。这些催化剂系统赋予烯烃三聚化过程改进的性能和/或降低了催化剂系统成本。
• Preparation of Transition Metal Carboxylates
  申请人：Sydora Orson L.

  公开号：US20130150605A1

  公开（公告）日：2013-06-13

  This disclosure provides a process for making transition metal carboxylate compositions by combining in an polar aprotic first solvent a transition metal precursor and a Group 1 or Group 2 metal carboxylate under substantially acid-free and substantially anhydrous conditions, to generate a mixture comprising the transition metal carboxylate composition. Optionally, the transition metal carboxylate composition can be purified, for example, by substantially removing the first solvent provide a residue comprising the transition metal carboxylate composition, and also optionally, further by extracting the transition metal carboxylate composition from the residue with a non-coordinating second solvent to provide an extract comprising the transition metal carboxylate composition.

  本公开提供了一种制备过渡金属羧酸盐组合物的方法，包括在极性无质子的第一溶剂中，在基本无酸和基本无水的条件下，将过渡金属前体和1组或2组金属羧酸盐组合，生成包含过渡金属羧酸盐组合物的混合物。可选地，可以通过基本去除第一溶剂来提纯过渡金属羧酸盐组合物，得到包含过渡金属羧酸盐组合物的残留物，还可以选择性地通过使用非配位的第二溶剂从残留物中提取过渡金属羧酸盐组合物，得到包含过渡金属羧酸盐组合物的提取物。
• Derivatives of 4-piperazin-1-yl-4-benzo[b]thiophene suitable for the treatment of cns disorders
  申请人：Yamashita Hiroshi

  公开号：US20090264404A1

  公开（公告）日：2009-10-22

  A heterocyclic compound or a salt thereof represented by the formula (1): where R 2 represents a hydrogen atom or a lower alkyl group; A represents a lower alkylene group or lower alkenylene group; and R 1 represents an aromatic group or a heterocyclic group. The compound of the present invention has a wide treatment spectrum for mental disorders including central nervous system disorders, no side effects and high safety.

  一种杂环化合物或其盐，其化学式为（1）：其中R2代表氢原子或较低的烷基基团；A代表较低的烷基烯基基团；R1代表芳香族基团或杂环基团。本发明的化合物具有广泛的治疗精神障碍的谱，包括中枢神经系统障碍，无副作用且安全性高。