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کلیدواژهها
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N-halo sulfonamide, trichloroisocyanuric acid (TCCA), 1, 3-dibromo-5, 5-dimethylhydantoin (DCDMH), bis (pyrazolyl)methane, 9-aryl-1, 8- dioxo-octahydroxanthene, 1-carbamatoalkyl- 2-naphthol, 1-thioacetamidoalkyl-2-naphthol, solvent free, multi-component reaction
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چکیده
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In this project, first of all, a new N-halo reagent, namely N,2-dibromo-6-chloro-3,4-dihydro-2H-benzo[e][1,2,4]thiadiazine-7-sulfonamide 1,1-dioxide (DCDBTSD), as an efficient and novel catalyst have prepared. Advantages of this catalyst are high stability, availability of the catalyst, metal-free nature, low toxicity and neutral media and simple reaction conditions. In next sections, the catalytic activity of this reagent in the synthesis of bis(pyrazolyl)methanes, 9-aryl-1,8-dioxo-octahydroxanthenes and 1-amidoalkyl (carbamato/thioacetamido)-2-naphthols have been investigated. Because of the application of 1-amidoalkyl-2-naphthols compounds in biologically active natural products, development of mild, fast and effective methods are needed. We have also examined catalytic activity of trichloroisocyanuric acid (TCCA) and 1,3-dibromo-5,5-dimethylhydantoin (DCDMH) in the synthesis of 1-amidoalkyl (carbamato/thioacetamido)-2-naphthols.
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