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Three-component reaction of aromatic aldehyde, 2-naphthalenamine, and 1,2-diphenylethanone in aqueous media catalyzed by triethylbenzylammonium chloride (TEBAC) at 90 °C gave 3-aryl-3-(naphthalen-2-ylamino)-1,2-diphenylpropan-1-one derivatives. The enol form of 1,2-diphenylethanone was tentatively proposed to participate in the formation of the products. Compared with previous methods, this three-component reaction has the advantages of green solvent, good yields, and operational simplicity. 相似文献
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A series of 1,4‐diarylquinoline derivatives were synthesized by the reaction of arylmethylidenemalononitriles or 2‐cyano‐3‐aryl‐1‐acrylate and 3‐arylamino‐5,5‐dimethylcyclohex‐2‐enone in aqueous media at 100 °C catalyzed by TEBAC. Meanwhile, the water medium was chosen as green solvent. 相似文献
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A short and simple synthesis of chromeno[4,3‐b]benzo[f]quinolin‐6‐one derivatives was accomplished in good to high yields via the reaction of N‐arylidenenaphthalen‐2‐amine with 4‐hydroxycoumarin in aqueous media catalyzed by TEBAC. The structures were established by spectroscopic data and further confirmed by X‐ray analysis. In addition, water was chosen as a green solvent. 相似文献
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Three-component reaction of aromatic aldehyde, malononitrile, and 2-(1-(3-chlorophenyl)propylidene)malononitrile in aqueous media catalyzed by tetraethylbenzylammonium chloride (TEBAC) at 90 °C gave 2-amino-6-(3-chlorophenyl)-5-methyl-4-arylcyclohexa-1,5-diene-1,3,3-tricarbonitrile derivatives. The structure of 4e was further confirmed by x-ray diffraction. This three-component reaction had the advantages of green solvent, good yield, and operational simplicity. 相似文献
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A clean and simple synthesis of one-donor poly-acceptors systems containing 2,6-dicyanoamine moiety was accomplished via the reaction of 1-arylethylidenemalonodinitriles with arylidenemalonodinitriles in aqueous media catalyzed by TEBAC in the presence of K2CO3. The important intermediates were obtained successfully to confirm the mechanism in the absence of base under the same reaction conditions. The structures of 3m and 4b were confirmed by X-ray diffraction studies. 相似文献
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