3-methyl-4-butyl-1H-pyrrole-2,5-dione | 70556-92-2

• 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: 3-methyl-4-butyl-1H-pyrrole-2,5-dione
• 英文别名: 2-n-butyl-3-methylmaleimide；2-Butyl-3-methylmaleinimid；2-(n-butyl)-3-methylMi；3-butyl-4-methyl-pyrrole-2,5-dione；3-Butyl-4-methylpyrrole-2,5-dione
• CAS: 70556-92-2
• 化学式: C₉H₁₃NO₂
• 分子量: 167.208
• InChiKey: JKLUKLCVTCIHLL-UHFFFAOYSA-N

物化性质

• 沸点：
  283.2±9.0 °C(Predicted)
• 密度：
  1.060±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.6
• 重原子数：
  12
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  46.2
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-methyl-4-butyl-1H-pyrrole-2,5-dione 、 N,O-双(三甲基硅烷基)三氟乙酰胺 以 二氯甲烷 为溶剂， 反应 0.5h， 生成 4-Butyl-3-methyl-5-trimethylsilanyloxy-pyrrol-2-one
  参考文献：
  名称：

  Petroporphyrins—II

  摘要：

  DOI：

  10.1016/0040-4020(80)80174-8
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 在 chromium(VI) oxide 作用下， 以 二氯甲烷 、 硫酸 、 三氟乙酸 为溶剂， 生成 3-methyl-4-butyl-1H-pyrrole-2,5-dione
  参考文献：
  名称：

  Petroporphyrins—II

  摘要：

  DOI：

  10.1016/0040-4020(80)80174-8

文献信息

• The First Experimental Demonstration of Side Chain Extension of Geoporphyrins in Sediments
  作者：Kenta Asahina、Junya Asano、Gen Kumagai、Mitsuru Satou、Kouichi Nomoto、Yuichiro Kashiyama、Hajime Mita、Shinya Nomoto

  DOI：10.1246/cl.2010.1267

  日期：2010.12.5

  To investigate the formation process of high carbon number (>C32) sedimentary porphyrins, heating experiments of several porphyrins were performed. Chromic acid oxidation of the heating products of protoporphyrin IX dimethyl ester afforded 2-methyl-3-n-propylmaleimide as the predominant product among the side-chain extension products formed. On the other hand, saturated substituents of etioporphyrin were also extended on heating to slowly form normal and branched homologs. These results may suggest that the transalkylation of porphyrin side chains proceeds mainly by a regioselective mechanism involving alkyl radical addition to a vinyl group of chlorophylls or their diagenetic products.

  为了研究高碳数（>C32）沉积卟啉的形成过程，对几种卟啉进行了加热实验。将前卟啉IX二甲酸酯的加热产物进行铬酸氧化，得到了作为主要产物的2-甲基-3-n-丙基马来酰亚胺。此外，乙基卟啉的饱和取代基在加热过程中也被延伸，缓慢形成正常和支链同系物。这些结果可能表明，卟啉侧链的转烷基化主要通过一种区域选择性机制进行，该机制涉及烷基自由基与叶绿素或其成岩产物的乙烯基团的加成反应。
• Maleimide index: a paleo-redox index based on fragmented fossil-chlorophylls obtained by chromic acid oxidation
  作者：Kenta Asahina、Satoshi Takahashi、Ryosuke Saito、Kunio Kaiho、Yasuhiro Oba

  DOI：10.1039/d2ra04702k

  日期：——

  understanding paleo-environmental changes. Fossilized chlorophylls present in sedimentary rocks can be detected by their conversion into maleimides and phthalimides. This can be achieved through the chromic acid oxidation of sedimentary rocks. Since the maleimides and phthalimides are derived from the pyrrole skeleton of fossil chlorophylls, their composition reflects the composition of paleo-photosynthetic

  过去光合生物的组成根据光合生物的栖息地特征提供了有关古环境的信息。因此，分析沉积岩中光合生物的叶绿素衍生物质对于了解古环境变化具有重要意义。沉积岩中存在的叶绿素化石可以通过其转化为马来酰亚胺和邻苯二甲酰亚胺来检测。这可以通过沉积岩的铬酸氧化来实现。由于马来酰亚胺和邻苯二甲酰亚胺源自化石叶绿素的吡咯骨架，因此它们的组成反映了古光合生物的组成。我们在此提出了一种用于检测古海洋光带缺氧-硫化物条件的指标，该指标基于氧化过程中产生的马来酰亚胺的组成比。本研究中的马来酰亚胺指数将是一种有用的分析方法，可以表明古海洋光带中已经发生了与大规模灭绝事件相关的缺氧-硫化物条件。
• RESIN COMPOSITION FOR OPTICAL MATERIAL, RESIN FILM FOR OPTICAL MATERIAL, AND OPTICAL WAVEGUIDE
  申请人：Hitachi Chemical Company, Ltd.

  公开号：EP2045629A1

  公开（公告）日：2009-04-08

  A resin composition for an optical material, which is excellent in heat resistance and transparency and is soluble in an aqueous alkali solution, a resin film for an optical material made of the resin composition, and an optical waveguide using the same are provided. The resin composition for an optical material includes: (A) an alkali-soluble (meth)acrylate polymer containing a maleimide skeleton in a main chain; (B) a polymerizable compound; and (C) a polymerization initiator. The resin film for an optical material is made of the resin composition for an optical material. The optical waveguide has a core part and/or a clad layer formed using the resin composition for an optical material or the resin film for an optical material.

  本发明提供了一种耐热性和透明度优异且可溶于碱水溶液的光学材料用树脂组合物、由该树脂组合物制成的光学材料用树脂膜以及使用该树脂组合物的光波导。光学材料用树脂组合物包括(A) 主链中含有马来酰亚胺骨架的碱溶性（甲基）丙烯酸酯聚合物；(B) 可聚合化合物；以及 (C) 聚合引发剂。光学材料用树脂薄膜由光学材料用树脂组合物制成。光波导具有使用光学材料用树脂组合物或光学材料用树脂薄膜形成的芯部和/或包层。
• PHOTOSENSITIVE RESIN COMPOSITION, CURED PHOTOSENSITIVE RESIN PRODUCT, PHOTOSENSITIVE RESIN FILM, CURED PHOTOSENSITIVE RESIN FILM PRODUCT, AND OPTICAL WAVEGUIDE PRODUCED BY USING THOSE PRODUCTS
  申请人：Hitachi Chemical Company, Ltd.

  公开号：EP2182410A1

  公开（公告）日：2010-05-05

  Provided are a photosensitive resin composition which is soluble in an alkaline aqueous solution and which has a good propagation loss in a visible light wavelength region, a photosensitive resin cured matter, a photosensitive resin film, a photosensitive resin film cured matter and an optical waveguide obtained by using the same. Provided are, to be specific, a photosensitive resin composition comprising (A) a vinyl polymer having at least one chain-polymerizable functional group in a molecule, (B) a polymerizable compound and (C) a polymerization initiator, wherein the component (C) is at least one selected from the group consisting of 2-[2-oxo-2-phenylacetoxyethoxy]ethyl oxyphenylacetate, 2-(2-hydroxyethoxy)ethyl oxyphenylacetate and oligo2-hyroxy-2-methyl-1-[4-(1-methylvinyl)phenyl]}propanone, a photosensitive resin cured matter, a photosensitive resin film, a photosensitive resin film cured matter and an optical waveguide obtained by using the same.

  本发明提供了一种可溶于碱性水溶液且在可见光波长区域具有良好传播损耗的光敏树脂组合物、光敏树脂固化物、光敏树脂薄膜、光敏树脂薄膜固化物以及使用该组合物获得的光波导。 具体地说，提供了一种光敏树脂组合物，该组合物包含（A）分子中至少有一个可链聚官能团的乙烯基聚合物，（B）可聚合化合物和（C）聚合引发剂，其中组分（C）至少选自由 2-[2-氧代-2-苯乙酰氧基乙氧基]氧代苯乙酸乙酯组成的组中的一种、2-(2-羟基乙氧基)乙基氧苯乙酸酯和低聚2-羟基-2-甲基-1-[4-(1-甲基乙烯基)苯基]}丙酮、光敏树脂固化物、光敏树脂薄膜、光敏树脂薄膜固化物和光导波导中的至少一种。
• RESIN COMPOSITION FOR OPTICAL WAVEGUIDE, RESIN FILM FOR OPTICAL WAVEGUIDE, AND OPTICAL WAVEGUIDE
  申请人：Hitachi Chemical Company, Ltd.

  公开号：EP2045629B1

  公开（公告）日：2013-09-04