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固定在功能化磁性纳米颗粒上的3-(丙硫基)丙烷-1-磺酸作为一锅法合成二氢四唑并[1,5-]嘧啶和四氢四唑并[5,1-]喹唑啉酮衍生物的高效催化剂。

3-(Propylthio)propane-1-sulfonic acid immobilized on functionalized magnetic nanoparticles as an efficient catalyst for one-pot synthesis of dihydrotetrazolo[1,5-]pyrimidine and tetrahydrotetrazolo[5,1-]quinazolinone derivatives.

作者信息

Karimi Fatemeh, Tighsazzadeh Behnaz, Asadi Beheshteh, Mohammadpoor-Baltork Iraj, Layeghi Mahsa, Mirkhani Valiollah, Tangestaninejad Shahram, Moghadam Majid

机构信息

Department of Chemistry, Catalysis Division, University of Isfahan Isfahan 81746-73441 Iran

出版信息

RSC Adv. 2022 Aug 10;12(34):22180-22187. doi: 10.1039/d2ra03813g. eCollection 2022 Aug 4.

DOI:10.1039/d2ra03813g
PMID:36043092
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC9364204/
Abstract

An efficient and reusable catalyst, which is 3-(propylthio)propane-1-sulfonic acid immobillized on functionalized magnetic nanoparticles [PTPSA@SiO-FeO], has been synthesized. For the first time, it is highlighted under solvent-free conditions for the catalytic activity in multicomponent synthesis of dihydrotetrazolo[1,5-]pyrimidines, dihydrotetrazolo[1,5-]pyrimidine-6-carboxylates and tetrahydrotetrazolo[5,1-]quinazolinones. The structure of the catalyst was well confirmed by characterization techniques, such as FT-IR, TGA, SEM-EDX, elemental mapping, TEM, VSM and elemental analysis. Besides, this unique catalyst was found to be effectual up to six cycles, which made it spotlighted. Recyclability of catalyst, excellent yield of the products, short reaction time and clean reaction profile are the advantages of the present protocol.

摘要

一种高效且可重复使用的催化剂，即负载于功能化磁性纳米颗粒上的3-(丙硫基)丙烷-1-磺酸[PTPSA@SiO-FeO]已被合成。首次强调了其在无溶剂条件下对二氢四唑并[1,5 -]嘧啶、二氢四唑并[1,5 -]嘧啶-6-羧酸酯和四氢四唑并[5,1 -]喹唑啉酮多组分合成的催化活性。通过FT-IR、TGA、SEM-EDX、元素映射、TEM、VSM和元素分析等表征技术对催化剂的结构进行了充分确认。此外，发现这种独特的催化剂在六个循环内均有效，这使其备受关注。催化剂的可回收性、产物的优异产率、较短的反应时间和清洁的反应过程是本方法的优点。

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