Cerium Supported Chitosan as an Efficient and Recyclable Heterogeneous Catalyst for Sustainable Synthesis of Spiropiperidine Derivatives

Nayeem Ahmed; Zeba N. Siddiqui

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Cerium Supported Chitosan as an Efficient and Recyclable Heterogeneous Catalyst for Sustainable Synthesis of Spiropiperidine Derivatives

机译：铈支持的壳聚糖作为可持续合成螺哌啶衍生物的高效可循环异构催化剂

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A new Ce/chitosan catalyst has been prepared and used for the highly efficient synthesis of diverse range of spiropiperidine derivatives via multicomponent reaction of substituted anilines, formaldehyde and different cyclic active methylene compounds at room temperature in PEG-200. The catalyst could be reused for five consecutive cycles without appreciable loss in catalytic activity. The structure of the catalyst was determined by IR, XRD, EDX, TEM and ICP-AES techniques. The present green protocol has advantages such as novel products, energy sustainability, short reaction times, high yield of products, economic viability and recyclability of the catalyst.

机译：制备了一种新的铈/壳聚糖催化剂，并将其用于在室温下在PEG-200中通过取代的苯胺，甲醛和不同的环状活性亚甲基化合物的多组分反应高效合成各种螺哌啶衍生物。该催化剂可以重复使用五个连续的周期，而催化活性没有明显的损失。催化剂的结构通过IR，XRD，EDX，TEM和ICP-AES技术确定。本绿色方案具有诸如新产品，能量可持续性，较短的反应时间，产物的高产率，催化剂的经济可行性和可回收性的优点。

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《ACS Sustainable Chemistry & Engineering》 |2015年第8期|共7页
作者
Nayeem Ahmed; Zeba N. Siddiqui;
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正文语种 eng
中图分类化学工业;
关键词
Heterogeneous; Multicomponent; Spiropiperidine; PEG-200; Green;

机译：异构;多组分;螺哌啶;PEG-200;绿色;

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1. Cerium Supported Chitosan as an Efficient and Recyclable Heterogeneous Catalyst for Sustainable Synthesis of Spiropiperidine Derivatives [J] . Nayeem Ahmed, Zeba N. Siddiqui ACS Sustainable Chemistry & Engineering . 2015,第8期

机译：铈支持的壳聚糖作为可持续合成螺哌啶衍生物的高效可循环异构催化剂
2. Polyvinylpolypyrrolidone-supported triflic acid (PVPPOTf) as a new, efficient, and recyclable heterogeneous catalyst for the synthesis of bis-indolyl methane derivatives [J] . Samad Khaksar, Mahmoud Tajbakhsh, Milad Gholami Comptes Rendus Chimie . 2014,第1期

机译：聚乙烯基聚吡咯烷酮负载的三氟甲磺酸（PVPPOTf）是用于合成双吲哚基甲烷衍生物的新型，高效且可回收的多相催化剂
3. Polymer(PVP)supported ferric chloride:an efficient and recyclable heterogeneous catalyst for high yield synthesis of 1,5-benzodiazepine derivatives under solvent free conditions and microwave irradiation [J] . M.Adharvana Chari, K.Syamasundar Catalysis Communications . 2005,第1期

机译：聚合物（PVP）负载的三氯化铁：一种高效且可回收的多相催化剂，可在无溶剂和微波辐射下高产率合成1,5-苯并二氮杂ze衍生物
4. One-Pot Synthesis of Indole Derivatives Using Homogeneous and Polymer-Supported Heterogeneous Palladium Catalysts [C] . Ken Tsutsumi, Hayato Sakai, Tsumoru Morimoto Symposium on Organometallic Chemistry . 2006

机译：使用均相和聚合物负载的非均相钯催化剂单罐合成吲哚衍生物
5. Cerium dioxide-supported gold catalysts for carbon monoxide oxidation: Synthesis, reactivity, activation, and characterization for site-isolated mononuclear species and clusters. [D] . Aguilar-Guerrero, Veronica Illeana. 2008

机译：二氧化铈负载的用于一氧化碳氧化的金催化剂：现场分离的单核物种和簇的合成，反应性，活化和表征。
6. An Efficient Protocol for the Green and Solvent-Free Synthesis of Azine Derivatives at Room Temperature Using BiCl3-Loaded Montmorillonite K10 as a New Recyclable Heterogeneous Catalyst [O] . K. Ravi, B. Krishnakumar, M. Swaminathan 2012

机译：使用BiCl3负载的蒙脱土K10作为新型可循环使用的非均相催化剂在室温下绿色和无溶剂合成叠氮衍生物的有效方案
7. Efficient one-pot four-component synthesis of 1,4-dihydropyridines promoted by magnetite/chitosan as a magnetically recyclable heterogeneous nanocatalyst [O] . 2015

机译：磁铁矿/壳聚糖作为可磁循环的非均相纳米催化剂促进的高效一锅四组分合成1,4-二氢吡啶

Cerium Supported Chitosan as an Efficient and Recyclable Heterogeneous Catalyst for Sustainable Synthesis of Spiropiperidine Derivatives

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