Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions

Abbasi Mohsen

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Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions

机译：新的离子液体，1,3-二磺酸苯并咪唑氯化物的设计，制备和表征，作为在无溶剂条件下合成四氢吡啶的有效和可回收催化剂

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In the present work, 1,3-disulfonic acid benzimidazolium chloride as a new ionic liquid, is synthesized, and characterized by studying its FT-IR, H-1 NMR, C-13 NMR as well as mass spectra. This ionic liquid is used as an efficient, homogeneous and recyclable catalyst for synthesis of highly functionalized tetrahydropyridine via one-pot multi-component condensation of aromatic aldehydes, ethyl acetoacetate, and anilines under solvent-free conditions. The present synthetic route is a green protocol offering several advantages, such as high yield of products, shorter reaction time, mild reaction conditions, minimizing chemical waste and easy work-up procedures. Further, the catalyst could be reused and recovered at least four times without appreciable loss of activity.

机译：在本作工作中，合成1,3-二磺酸苯并咪唑氯化物作为新的离子液体，并通过研究其FT-IR，H-1 NMR，C-13 NMR以及质谱。该离子液体用作在无溶剂条件下通过单盆多组分缩合合成高效官能化四氢吡啶的有效，均匀和可回收的催化剂，并在无溶剂条件下通过芳族醛，乙基乙酸乙酯和苯胺。本合成途径是一种绿色方案，提供了多种优点，如产品的高产率，更短的反应时间，轻度反应条件，最小化化学废物和易于处理程序。此外，催化剂可以重复使用并至少4倍回收，而不会明显丧失活性。

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《RSC Advances》 |2015年第83期|共7页
作者
Abbasi Mohsen;
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Islamic Azad Univ Lamerd Branch Dept Chem Lamerd Fars Iran;

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正文语种 eng
中图分类化学;
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1. Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions [J] . Abbasi Mohsen RSC Advances . 2015,第83期

机译：新的离子液体，1,3-二磺酸苯并咪唑氯化物的设计，制备和表征，作为在无溶剂条件下合成四氢吡啶的有效和可回收催化剂
2. Solvent-free synthesis of quinoline derivatives via the Friedlander reaction using 1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient and recyclable ionic liquid catalyst [J] . Farhad Shirini, Asieh Yahyazadeh, Kamal Mohammadi Comptes Rendus Chimie . 2014,第4期

机译：使用1,3-二磺酸咪唑硫酸氢盐作为有效且可回收的离子液体催化剂通过Friedlander反应无溶剂合成喹啉衍生物
3. One-pot synthesis of various xanthene derivatives using ionic liquid 1,3-disulfonic acid imidazolium hydrogen sulfate as an efficient and reusable catalyst under solvent-free conditions [J] . Farhad Shirini, Asieh Yahyazadeh, Kamal Mohammadi 中国化学快报（英文版） . 2014,第002期

机译：在无溶剂条件下，使用离子液体1,3-二磺酸咪唑硫酸氢盐作为有效和可重复使用的催化剂，一锅合成各种various吨衍生物
4. Synthesis, characterization, and crystal structure of several novel acidic ionic liquids: 1-ethyl-2-alkyl-benzimidazolium tetra-fluoroborate [C] . Ming-tian Wang, Chang-ping Pan, Wei-peng Gai, International Conference on Frontiers of Mechanical Engineering and Materials Engineering . 2014

机译：几种新型酸性离子液体的合成，表征和晶体结构：1-乙基-2-烷基 - 苯并咪唑鎓四氟硼酸盐
5. Synthesis and Characterization of Ionic Liquid Monomers and Polymers Derived from 2-substituted-1,3-dialkyl-4(5)-vinylimidazolium salts [D] . Yang, Fan 2013

机译：2-取代-1,3-二烷基-4（5）-乙烯基咪唑鎓盐衍生的离子液体单体和聚合物的合成与表征
6. Synthesis of BenzoxazolesBenzimidazoles and BenzothiazolesUsing a Brønsted Acidic Ionic Liquid Gel as an Efficient HeterogeneousCatalyst under a Solvent-Free Condition [O] . The Thai Nguyen, Xuan-Trang Thi Nguyen, Thuy-Linh Ho Nguyen, 2019

机译：苯并恶唑的合成苯并咪唑和苯并噻唑使用布朗斯台德酸性离子液体凝胶作为高效多相无溶剂条件下的催化剂
7. Lewis acidic (choline chloride.3ZnCl2) ionic liquid: A green and recyclable catalyst for the one-pot synthesis of 4-((3-indolyl)(aryl)methyl)-N,N-dimethylanilines under solvent-free conditions [O] . RAHIM HEKMATSHOAR, FARNOUSH MOUSAVIZADEH, REYHANEH RAHNAMAFAR 2013

机译：路易斯酸性（胆碱氯化氯化胆碱3ZNCl2）离子液体：用于1罐合成的4 - （（3-吲哚基）甲基）-N，N-二甲基苯胺的绿色和可回收催化剂，在无溶剂条件下

Design, preparation and characterization of a new ionic liquid, 1,3-disulfonic acid benzimidazolium chloride, as an efficient and recyclable catalyst for the synthesis of tetrahydropyridine under solvent-free conditions

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