排序方式: 共有13条查询结果,搜索用时 0 毫秒
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Ebrahim Kianmehr Maryam Fardpour Ali Darvish Ali Nemati Kharat Seik Weng Ng 《Tetrahedron letters》2019,60(10):699-702
Synthesis of substituted phthalides through a ruthenium-catalyzed reaction of phthalic anhydrides with acrylates is described. The reaction proceeds via CH bond activation and leads to the formation of vinylated phthalides through a successive double vinylation accompanied by decarboxylation and annulation reactions. 相似文献
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A palladium-catalyzed dehydrogenative acylation of indoles using easily accessible aldehydes as the acyl source is described. This reaction provides a new approach for the synthesis of 3-acylindoles. 相似文献
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Ebrahim Kianmehr Narges Shamsaei Zafarghandi Mohammad Ghanbari 《Molecular diversity》2013,17(2):383-388
Novel $N$ -alkyl-2-(alkylthio)-1 $H$ -imidazole derivatives were synthesized in a single step by an efficient and simple method in high yields. Readily available starting materials, mild reaction conditions, operational simplicity and novelty are the key advantages of this method. Besides their novel structures, these compounds may have important biological activities and industrial applications. 相似文献
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A straightforward acylaltion of pyridine derivatives has been developed using K2S2O8 as the oxidant and water as a green solvent. The corresponding 2-acylpyridines were synthesized with high chemo- and regioselectivity in good to high yields. This efficient and practical method could serve as a new tool for the convenient synthesis of 2-benzoylpyridines of interest for future pharmaceutical and chemical applications. 相似文献
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Golnaz Rahimzadeh Saeed Bahadorikhalili Ebrahim Kianmehr Mohammad Mahdavi 《Molecular diversity》2017,21(3):597-609
A novel imidazole ionic liquid (IL)-functionalized \(\hbox {silica}@\gamma \)-\(\hbox {Fe}_{2}\hbox {O}_{3}\) (\(\hbox {IL-SiO}_{2}@\hbox {MNP}\)) is prepared by the functionalization of \(\hbox {SiO}_{2}@\hbox {MNP}\) by 1-butyl-3-(3-trimethoxypropyl)-1H-imidazol-3-ium chloride as the IL moiety. The catalyst is characterized by transmission electron microscopy, scanning electron microscope, vibrating sample magnetometer, dynamic light scattering and Fourier transform infrared spectroscopy. \(\hbox {IL-SiO}_{2}@\hbox {MNP}\) showed good activity in the synthesis of 6H-chromeno[4,3-b]quinolin-6-one derivatives via multicomponent reaction of 4-hydroxycoumarin, anilines and benzaldehydes. The nanocatalyst is magnetically separable and easily recoverable and showed successful activity up to 10 runs. 相似文献
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Ebrahim Kianmehr Katayoun Tabatabai Alireza Abbasi Hamideh Shokouhi Mehr 《合成通讯》2013,43(15):2529-2539
An efficient and straightforward pyridine-catalyzed method allowing selective O-vinylation of phenols with DMAD is reported. The reaction is diastereoselective and leads exclusively to (Z)-configuration in high yields. 相似文献