2,4-bis(4-methoxyphenyl)-1H-pyrrole | 21399-24-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: 2,4-bis(4-methoxyphenyl)-1H-pyrrole
• 英文别名: 2,5-bis(4-methoxyphenyl)-1H-pyrrole；2,5-di(4-methoxyphenyl)-1H-pyrrole；2,5-di(p-anisyl)pyrrole；2,5-bis-(4-methoxy-phenyl)-pyrrole；2,5-Bis-(4-methoxy-phenyl)-pyrrol；2,5-Bis(p-methoxy-phenyl)-pyrrol
• CAS: 21399-24-6
• 化学式: C₁₈H₁₇NO₂
• 分子量: 279.338
• InChiKey: VRVVGOKMQKGQJJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4
• 重原子数：
  21
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  34.2
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  对氯甲苯 、 2,4-bis(4-methoxyphenyl)-1H-pyrrole 在 tris-(dibenzylideneacetone)dipalladium(0) 、 2-二叔丁基膦-2′,4′,6′-三异丙基-3,6-二甲氧基-1,1′-联苯 、 lithium tert-butoxide 作用下， 以 甲苯 为溶剂， 反应 7.0h， 以83%的产率得到2,5-bis(4-methoxyphenyl)-3-(p-tolyl)-1H-pyrrole
  参考文献：
  名称：

  通过配体控制的位点选择性脱芳香性C2-芳基化和直接C3-芳基化反应合成2,2,5-三取代的2H-吡咯和2,3,5-三取代的1H-吡咯。

  摘要：

  2，5-二芳基-1H-吡咯与芳基氯化物的钯催化的位点选择性脱芳香C2-芳基化反应，合成了一系列的2,2,5-三芳基-2H-吡咯。另外，通过简单地改变配体来改变反应的位点选择性，并制备了直接的C3-芳基化的2,3,5-三芳基-1H-吡咯。所获得的2,2,5-三芳基-2H-吡咯可以进一步转化为2,2,5,5-四芳基吡咯烷。

  DOI：

  10.1021/acs.orglett.9b02559
• 作为产物：
  描述：

  1,4-bis (4-methoxyphenyl)-2-butyne-1,4-dione 在 palladium on activated charcoal PEG-200 、 甲酸铵 作用下， 反应 0.02h， 以91%的产率得到2,4-bis(4-methoxyphenyl)-1H-pyrrole
  参考文献：
  名称：

  Microwave mediated facile one-pot synthesis of polyarylpyrroles from but-2-ene- and but-2-yne-1,4-diones

  摘要：

  Several pyrrole derivates with multiple aryl substituents were prepared conveniently in a one pot-reaction from but-2-ene-1,4-diones and but-2-yne-1,4-diones via hydrogenation of the carbon-carbon double bond/triple bond followed by amination-cyclization. The reaction could be performed with ammonium formate or alkyl/arylammonium formates under Pd/C in polyethylene glycol-200 (PEG-200) under microwave irradiation. Using this procedure, different aryl-substituted pyrroles were prepared. Furthermore, studies on microwave vs thermal conditions indicate faster heating under microwave conditions was responsible for rate enhancement. (C) 2003 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2003.11.087

文献信息

• One-pot synthesis of pyrrole derivatives from (E)-1,4-diaryl-2-butene-1,4-diones
  作者：H Surya Prakash Rao、S Jothilingam

  DOI：10.1016/s0040-4039(01)01334-x

  日期：2001.9

  2,5-Di- and 1,2,5-trisubstituted pyrrole derivatives can be prepared conveniently from (E)-1,4-diaryl-2-butene-1,4-diones in a one-pot operation through domino-pathways via palladium-assisted transfer hydrogenation followed by a Paal–Knorr reaction using ammonium formate and its analogs.

  可通过一锅操作通过多米诺途径方便地从（E）-1,4-二芳基-2-丁烯-1,4-二酮制备2,5-二-和1,2,5-三取代的吡咯衍生物通过钯辅助的转移氢化反应，然后使用甲酸铵及其类似物进行Paal-Knorr反应。
• Syntheses of Pyrroles, Pyridines, and Ketonitriles via Catalytic Carbopalladation of Dinitriles
  作者：Linjun Qi、Renhao Li、Xinrong Yao、Qianqian Zhen、Pengqing Ye、Yinlin Shao、Jiuxi Chen

  DOI：10.1021/acs.joc.9b02999

  日期：2020.1.17

  The first example of the Pd-catalyzed addition of organoboron reagents to dinitriles, as an efficient means of preparing 2,5-diarylpyrroles and 2,6-diarylpyridines, has been discussed here. Furthermore, the highly selective carbopalladation of dinitriles with organoboron reagents to give long-chain ketonitriles has been developed as well. Based on the broad scope of substrates, excellent functional

  本文讨论了Pd催化向二腈中添加有机硼试剂的第一个例子，这是制备2，5-二芳基吡咯和2，6-二芳基吡啶的有效方法。此外，还开发了用有机硼试剂对二腈进行高度选择性的碳巴巴定反应以生成长链酮腈。基于底物的广泛范围，优异的官能团耐受性和可商购的底物的使用，预期芳基硼酸和二腈的Pd催化加成反应在未来的合成方法中将是重要的。
• Synthesis of multisubstituted pyrroles by ligand-controlled site-selective arylation and their transformation into multiarylated pyrrolines and pyrrolidines
  作者：Miyuki Yamaguchi、Sakiko Fujiwara、Yukiko Mori、Hideyuki Konishi、Kei Manabe

  DOI：10.1016/j.tet.2022.132962

  日期：2022.9

  Multisubstituted pyrroles were prepared by Pd-catalyzed site-selective arylation of 2,5-disubstituted 1H-pyrroles with aryl chlorides, triflates, or nonaflates. Site-selectivity of the reaction was controlled using appropriate ligands, and 2,2,5-trisubstituted 2H-pyrroles were synthesized via dearomative C2-arylation. Moreover, 2,3,5-trisubstituted 1H-pyrroles were successfully fabricated by direct

  多取代的吡咯是通过 Pd 催化的 2,5-二取代的 1 H-吡咯与芳基氯化物、三氟甲磺酸酯或九氟甲磺酸酯的位点选择性芳基化来制备的。使用适当的配体控制反应的位点选择性，并通过脱芳烃 C2-芳基化合成 2,2,5-三取代的 2 H-吡咯。此外，通过直接C3-芳基化成功制备了2,3,5-三取代的1 H-吡咯。这些芳基化可应用于带有芳基氯部分的药物。此外，2,2,5-三芳基-2 H-吡咯被转化为多芳基化吡咯啉和吡咯烷，可用于合成和药物化学。
• RESIN COMPOSITION, TRIAZOLE COMPOUND, OPTICAL FILM, POLARIZING PLATE, OPTICAL LENS, CIRCULARLY POLARIZING PLATE AND IMAGE DISPLAY DEVICE
  申请人：Konica Minolta, Inc.

  公开号：EP2944676A1

  公开（公告）日：2015-11-18

  The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.

  本发明提供了一种能够形成薄膜的树脂组合物，其光学值随湿度的变化很小；一种三唑化合物，可掺入该树脂组合物中；一种光学薄膜和一种光学透镜，它们分别由该树脂组合物制备而成，其光学值随湿度的变化很小；以及一种偏光板、一种圆偏光板和一种图像显示装置，它们分别包括该光学薄膜，并具有优异的防潮性能。本发明的树脂组合物包含一种树脂和一种具有 5 元或 6 元芳香烃环或杂环的化合物，其中树脂是一种吸湿性树脂，化合物具有至少三个具有特定 NICS 值的特定芳香环，特定芳香环通过单键或一个或两个原子相互结合。
• Resin composition
  申请人：KONICA MINOLTA, INC.

  公开号：US10012777B2

  公开（公告）日：2018-07-03

  The present invention provides a resin composition capable of forming a film exhibiting a small humidity-dependent variation in optical values; a triazole compound to be incorporated into the resin composition; an optical film and an optical lens, each of which is prepared from the resin composition and exhibits a small humidity-dependent variation in optical values; and a polarizing plate, a circularly polarizing plate, and an image display device, each of which includes the optical film and exhibits excellent moisture resistance. The resin composition of the present invention contains a resin and a compound having a 5-membered or 6-membered aromatic hydrocarbon or heterocyclic ring, wherein the resin is a hygroscopic resin, the compound has at least three specific aromatic rings having a specific NICS value, and the specific aromatic rings are bonded to one another via a single bond or one or two atoms.

  本发明提供了一种能够形成薄膜的树脂组合物，其光学值随湿度的变化很小；一种三唑化合物，可掺入该树脂组合物中；一种光学薄膜和一种光学透镜，它们分别由该树脂组合物制备而成，其光学值随湿度的变化很小；以及一种偏光板、一种圆偏光板和一种图像显示装置，它们分别包括该光学薄膜，并具有优异的防潮性能。本发明的树脂组合物包含一种树脂和一种具有 5 元或 6 元芳香烃环或杂环的化合物，其中树脂是一种吸湿性树脂，化合物具有至少三个具有特定 NICS 值的特定芳香环，特定芳香环通过单键或一个或两个原子相互结合。