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磺化碳催化Biginelli反应一锅法合成3,4-二氢-2(1H)-酮和硫酮(英文) 被引量:4
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作者 Maryam MOGHADDAS Abolghasem DAVOODNIA +1 位作者 Majid M.HERAVI niloofar tavakoli-hoseini 《催化学报》 SCIE EI CAS CSCD 北大核心 2012年第4期706-710,共5页
A sulfonated carbon material was shown to be a highly efficient,eco-friendly,and recyclable solid acid catalyst for the Biginelli reaction of β-ketoester,aldehyde,and urea or thiourea under solvent-free conditions.It... A sulfonated carbon material was shown to be a highly efficient,eco-friendly,and recyclable solid acid catalyst for the Biginelli reaction of β-ketoester,aldehyde,and urea or thiourea under solvent-free conditions.It gave 3,4-dihydropyrimidin-2(1H)-ones and-thiones in good to excellent yields.This method has the advantages of a simple procedure with easy work-up,short reaction time,and high yields.The catalyst can be recycled after a simple work-up and was reused four times without substantial reduction in activity. 展开更多
关键词 化学 催化 高压 高温
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无溶剂条件下碳基固体酸催化一锅法合成酰胺烷基萘酚(英文) 被引量:1
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作者 Abolghasem Davoodnia Rahil Mahjoobin niloofar tavakoli-hoseini 《催化学报》 SCIE EI CAS CSCD 北大核心 2014年第4期490-495,共6页
An efficient, environmentally friendly procedure for the synthesis of amidoalkyl naphthols through the one‐pot, three‐component reaction of β‐naphthol, aryl aldehydes, and acetamide in the presence of a carbon‐ba... An efficient, environmentally friendly procedure for the synthesis of amidoalkyl naphthols through the one‐pot, three‐component reaction of β‐naphthol, aryl aldehydes, and acetamide in the presence of a carbon‐based solid acid under thermal solvent‐free conditions is described. The beneficial fea-tures of this new synthetic approach include short reaction time, high yields, clean reaction profiles, and a simple work‐up procedure. Furthermore, the catalyst can be readily recycled and reused four times without obvious significant loss of activity. The structure of the catalyst was confirmed by Fourier transform infrared spectroscopy, N2 adsorption/desorption analysis, and X‐ray diffraction. 展开更多
关键词 一锅法合成 无溶剂条件 固体酸催化 Β-萘酚 胺烷基 碳基 简便 反应时间
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高效可重复使用多相催化剂Ce(SO_4)_2·4H_2O用于无溶剂一锅合成2,3-二氢喹唑啉-4(1H)-酮(英文)
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作者 Abolghasem Davoodnia Maryam Khashi niloofar tavakoli-hoseini 《催化学报》 SCIE EI CAS CSCD 北大核心 2014年第7期1054-1058,共5页
Cerium(IV) sulfate tetrahydrate, Ce(SO4)2·4H2O, is a novel inorganic solid acidic catalyst that efficiently catalyzes the synthesis of 2,3-dihydroquinazolin-4(1H)-ones via the one-pot three- component reaction of... Cerium(IV) sulfate tetrahydrate, Ce(SO4)2·4H2O, is a novel inorganic solid acidic catalyst that efficiently catalyzes the synthesis of 2,3-dihydroquinazolin-4(1H)-ones via the one-pot three- component reaction of isatoic anhydride, aromatic aldehydes, and a nitrogen source(ammonium acetate, ammonium carbonate, ammonium chloride, or methylamine) under solvent-free conditions. The desired products are obtained in short reaction time with high yields. The catalyst is inexpensive and readily available and can be recovered conveniently and reused such that considerable catalytic activity can still be achieved after the fifth run. Easy work-up and avoiding the use of harmful organic solvents are other advantages of this simple procedure. 展开更多
关键词 非均相催化剂 无溶剂条件 一锅法合成 硫酸盐 喹唑啉 可重复使用 二氢
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