{"title":"Copper Acetylacetonate–Immobilized Halloysite Nanotube: An Efficient Natural and Green Catalyst for the Synthesis of 4H-Chromenes at Room Temperature","authors":"Seyed Ali Mousavi-Mashhadi, Ali Shiri","doi":"10.1002/aoc.7944","DOIUrl":null,"url":null,"abstract":"<div>\n \n <p>A new copper acetylacetonate immobilized on halloysite nanotube (HNT) was synthesized. For this purpose, (3-aminopropyl)trimethoxysilane (AMPTSi) was covalently bonded to the surface of halloysite nanotubes, and then copper acetylacetonate was immobilized onto the modified support. The chemical and physical structure of Cu(acac)<sub>2</sub>/AMPTSi/HNTs were characterized via various analyses such as TEM, SEM, EDS, FTIR, XRD, TGA, and N<sub>2</sub> adsorption–desorption. The efficiency of this catalyst was studied in a one-pot three-component reaction of benzaldehydes, dimedone, and malononitrile/ethyl cyanoacetate for the synthesis of 4<i>H</i>-chromenes. For all substrates, good to excellent yields of the corresponding 4<i>H</i>-chromenes were obtained.</p>\n </div>","PeriodicalId":8344,"journal":{"name":"Applied Organometallic Chemistry","volume":"39 1","pages":""},"PeriodicalIF":3.7000,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Applied Organometallic Chemistry","FirstCategoryId":"92","ListUrlMain":"https://onlinelibrary.wiley.com/doi/10.1002/aoc.7944","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, APPLIED","Score":null,"Total":0}
引用次数: 0
Abstract
A new copper acetylacetonate immobilized on halloysite nanotube (HNT) was synthesized. For this purpose, (3-aminopropyl)trimethoxysilane (AMPTSi) was covalently bonded to the surface of halloysite nanotubes, and then copper acetylacetonate was immobilized onto the modified support. The chemical and physical structure of Cu(acac)2/AMPTSi/HNTs were characterized via various analyses such as TEM, SEM, EDS, FTIR, XRD, TGA, and N2 adsorption–desorption. The efficiency of this catalyst was studied in a one-pot three-component reaction of benzaldehydes, dimedone, and malononitrile/ethyl cyanoacetate for the synthesis of 4H-chromenes. For all substrates, good to excellent yields of the corresponding 4H-chromenes were obtained.
期刊介绍：
All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
