题名 | Natural vs. Synthetic phosphate as efficient heterogeneous compounds for synthesis of quinoxalines |
作者 | |
通讯作者 | Amini,Abbas |
发表日期 | 2021-12-01
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DOI | |
发表期刊 | |
ISSN | 1661-6596
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EISSN | 1422-0067
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卷号 | 22期号:24 |
摘要 | Natural phosphate (NP) and synthetic fluorapatite phosphate (SFAP) were proposed as stable, inexpensive, readily available and recyclable catalysts for the condensation of 1,2‐diamines with 1,2‐dicarbonyls in methanol to afford quinoxaline at room temperature. NP provided as high as 92–99% yield for quinoxalines in short reaction times (i.e., 1–45 min), while SFAP created quinoxalines with 87–97% yield in 60–120 min. From the chemical analyses, X‐ray fluoresecency, X‐ray diffraction, energy dispersive X‐ray and Fourier‐transform infrared spectroscopy methods, two main phases (CaO, P2O5) appeared in NP together with other low content phases (SiO2, Fe2O3). Compared to other phases, apatite (CaO and P2O5 as Ca10(PO4)6) played a major role in the catalytic activity of NP. SFAP with similar Ca/P atomic ratio showed a relatively lower catalytic activity than NP for the condensation of 1,2‐diamine with 1,2‐dicarbonyl in methanol at ambient temperature. To investigate the recyclability of catalysts, the surface properties of NP and 6‐recycled NP were investigated using scanning electron microscopy, energy dispersive X‐ray and Brunauer–Emmett– Teller and Barrett–Joyner–Halenda methods. Some differences were observed in NP and 6‐recycled NP’s particle size, surface area, the volume and size of pores, and the content of elements; nevertheless, the use–reuse process did not noticeably change the catalytic property of NP. |
关键词 | |
相关链接 | [Scopus记录] |
语种 | 英语
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学校署名 | 其他
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ESI学科分类 | CHEMISTRY
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Scopus记录号 | 2-s2.0-85121372503
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来源库 | Scopus
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引用统计 |
被引频次[WOS]:3
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成果类型 | 期刊论文 |
条目标识符 | http://sustech.caswiz.com/handle/2SGJ60CL/259307 |
专题 | 工学院_材料科学与工程系 |
作者单位 | 1.Centre for Infrastructure of Engineering,Western Sydney University,Penrith,Bld Z, Locked Bag 1797, Kingswood Campus,2751,Australia 2.Department Mechanical Engineering,Australian College of Kuwait,Mishref, Safat,13015,Kuwait 3.Department of Chemistry,Payame Noor University,Tehran,Iran 4.Pharmaceutical Sciences Research Center,Shiraz University of Medical Sciences,Shiraz,Iran 5.Department of Pharmaceutical Biotechnology,School of Pharmacy,Shiraz University of Medical Sciences,Shiraz,Iran 6.Department of Materials Science and Engineering,Southern University of Science and Technology (SUSTech),Shenzhen,518055,China 7.Department of Mechanical Engineering,Industrial and Manufacturing Engineering,The University of Toledo,Toledo,43606,United States |
推荐引用方式 GB/T 7714 |
Amini,Abbas,Fallah,Azadeh,Sedaghat,Ahmad,et al. Natural vs. Synthetic phosphate as efficient heterogeneous compounds for synthesis of quinoxalines[J]. International Journal of Molecular Sciences,2021,22(24).
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APA |
Amini,Abbas,Fallah,Azadeh,Sedaghat,Ahmad,Gholami,Ahmad,Cheng,Chun,&Gupta,Anju R..(2021).Natural vs. Synthetic phosphate as efficient heterogeneous compounds for synthesis of quinoxalines.International Journal of Molecular Sciences,22(24).
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MLA |
Amini,Abbas,et al."Natural vs. Synthetic phosphate as efficient heterogeneous compounds for synthesis of quinoxalines".International Journal of Molecular Sciences 22.24(2021).
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条目包含的文件 | 条目无相关文件。 |
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