A green, chemoselective, and efficient protocol for Paal-Knorr pyrrole and bispyrrole synthesis using biodegradable polymeric catalyst PEG-SO _3H in water

Ali Jafari A.; Amini S.; Tamaddon F.

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A green, chemoselective, and efficient protocol for Paal-Knorr pyrrole and bispyrrole synthesis using biodegradable polymeric catalyst PEG-SO _3H in water

机译：使用可生物降解的聚合物催化剂PEG-SO _3H在水中进行Paal-Knorr吡咯和双吡咯合成的绿色，化学选择性和高效方案

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In water and in the presence of 1 mol % of Poly(ethylene glycol)-bounded sulfonic acid, amines undergo smooth condensation with 2,5-hexadione at room temperature to afford the corresponding pyrroles in good to excellent yields. The sole products were solidified as the reaction proceeded and separated by simple filtration. In addition, bispyrroles were synthesized in excellent yields via this eco-friendly protocol. The method is easy, simple, cost-effective, chemoselective, and environmentally benign that introduces a beautiful example of click chemistry in water.

机译：在水中和在1摩尔％的聚（乙二醇）结合的磺酸的存在下，胺在室温下与2,5-己二酮进行平滑缩合，以良好或极好的收率得到相应的吡咯。随着反应的进行，唯一的产物固化，并通过简单的过滤分离。另外，通过这种生态友好的方案以高产率合成了双吡咯。该方法简便，简单，具有成本效益，化学选择性和环境友好，为水中的点击化学提供了一个很好的例子。

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《Journal of Applied Polymer Science》 |2012年第2期|共7页
作者
Ali Jafari A.; Amini S.; Tamaddon F.;
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正文语种 eng
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amine; Paal-Knorr; PEG-SO _3H; pyrrole; water;

机译：胺;Paal-Knorr;PEG-SO _3H;吡咯;水;

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1. A green, chemoselective, and efficient protocol for Paal-Knorr pyrrole and bispyrrole synthesis using biodegradable polymeric catalyst PEG-SO _3H in water [J] . Ali Jafari A., Amini S., Tamaddon F. Journal of Applied Polymer Science . 2012,第2期

机译：使用可生物降解的聚合物催化剂PEG-SO _3H在水中进行Paal-Knorr吡咯和双吡咯合成的绿色，化学选择性和高效方案
2. Grinding solvent-free Paal-Knorr pyrrole synthesis on smectites as recyclable and green catalysts [J] . O. Marvi, H. T. Nahzomi Bulletin of the Chemical Society of Ethiopia . 2018,第1期

机译：在可蒙脱石和可再生绿色催化剂上研磨无溶剂的Paal-Knorr吡咯合成
3. Vitamin B1 as a metal-free organocatalyst for greener Paal-Knorr pyrrole synthesis [J] . Hossein Reza Darabi, Kioumars Aghapoor, Abbas Darestani Farahani Environmental chemistry letters . 2012,第4期

机译：维生素B1是无金属的有机催化剂，可实现更环保的Paal-Knorr吡咯合成
4. Green Synthesis of Catalyst and Biodegradable Polymer by Using Dense Gas Technology [C] . Xia Zhong, Bilal Chohan, Aditya Ravi, International Symposium on Supercritical Fluids . 2009

机译：用致密气体技术绿色合成催化剂和可生物降解聚合物
5. New developments toward the synthesis of heterocycles and applications in green chemistry. I. A simple and essentially one-pot synthesis of N-aminated heterocycles using phase transfer catalyst (Aliquat-336). II. Synthesis of pharmaceutically important pyrrole derivatives. III. Applications in green chemistry: Surfactant-mediated environmentally friendly cleavage of aromatic esters and trans-esterification under solvent-free neutral conditions . [D] . Patel, Nitinchandra. 2005

机译：杂环合成的新进展及其在绿色化学中的应用。 I.使用相转移催化剂（Aliquat-336）简单且基本上一锅合成N-胺化的杂环。二。药学上重要的吡咯衍生物的合成。三，在绿色化学中的应用：在无溶剂的中性条件下，表面活性剂介导的环境友好的芳族酯裂解和酯交换反应。
6. Pyrrole-Based Conjugated Microporous Polymers as Efficient Heterogeneous Catalysts for Knoevenagel Condensation [O] . Ruidong Gao, Guang Zhang, Fanli Lu, 2021

机译：吡咯基缀合的微孔聚合物作为Knoevenagel冷凝的有效异质催化剂
7. Amberlite IR-120 H+ Resin, an Efficient and Recyclable Solid Phase Catalyst for the Synthesis of 2, 3-Disubstituted Quinazolin-4(3H)-Ones: A Greener Approach [O] . Ravi Kumar G. M. V. N. A. R, Thangamani Arumugam, Venkata Reddy Gayam, 2017

机译：琥珀酸酯IR-120h +树脂，用于合成2,3-二取代的喹唑啉-4（3H） - 导致的高效和可回收的固相催化剂：更绿色的方法

A green, chemoselective, and efficient protocol for Paal-Knorr pyrrole and bispyrrole synthesis using biodegradable polymeric catalyst PEG-SO _3H in water

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