{"title":"Ullmann coupling reaction of dihalobenzenes and malononitrile-heterocumulene adducts under ultrasound-irradiation","authors":"Manijeh Nematpour","doi":"10.1016/j.tet.2024.134381","DOIUrl":null,"url":null,"abstract":"<div><div>In this study, various benzothiazoles, benzoxazoles, and benzo[1,3]-dithiols derivatives with good yields were obtained using the Ullmann coupling reaction of dihalobenzenes and malononitrile-heterocumulene adducts in the vicinity of copper catalyst, Cs<sub>2</sub>CO<sub>3</sub> as a base under ultrasound irradiation. The use of the popular sonochemical method, short reaction time, simple and available raw materials, mild catalytic copper reaction conditions, simple purification, and good efficiency are some of the notable characteristics of this protocol.</div></div>","PeriodicalId":437,"journal":{"name":"Tetrahedron","volume":"170 ","pages":"Article 134381"},"PeriodicalIF":2.1000,"publicationDate":"2024-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Tetrahedron","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0040402024005623","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, ORGANIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this study, various benzothiazoles, benzoxazoles, and benzo[1,3]-dithiols derivatives with good yields were obtained using the Ullmann coupling reaction of dihalobenzenes and malononitrile-heterocumulene adducts in the vicinity of copper catalyst, Cs2CO3 as a base under ultrasound irradiation. The use of the popular sonochemical method, short reaction time, simple and available raw materials, mild catalytic copper reaction conditions, simple purification, and good efficiency are some of the notable characteristics of this protocol.
期刊介绍：
Tetrahedron publishes full accounts of research having outstanding significance in the broad field of organic chemistry and its related disciplines, such as organic materials and bio-organic chemistry.
Regular papers in Tetrahedron are expected to represent detailed accounts of an original study having substantially greater scope and details than that found in a communication, as published in Tetrahedron Letters.
Tetrahedron also publishes thematic collections of papers as special issues and ''Reports'', commissioned in-depth reviews providing a comprehensive overview of a research area.
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