中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
1-甲酰基-9H-吡啶并[3,4-B]吲哚-3-羧酸甲酯 | methyl 1-formyl-9H-pyrido[3,4-b]indole-3-carboxylate | 113247-36-2 | C14H10N2O3 | 254.245 |
—— | methyl 1-(dimethoxymethyl)-9H-pyrido[3,4-b]indole-3-carboxylate | 129609-50-3 | C16H16N2O4 | 300.314 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | methyl 1-(5-fluoro-1H-benzo[d]imidazol-2-yl)-9-methyl-9Hpyrido[3,4-b]indole-3-carboxylate | —— | C21H15FN4O2 | 374.374 |
—— | methyl 1-(5-bromo-1H-benzo[d]imidazol-2-yl)-9-methyl-9Hpyrido[3,4-b]indole-3-carboxylate | —— | C21H15BrN4O2 | 435.28 |
A robust transition-metal-free strategy is presented to access novel β-carboline-tethered benzothiophenone derivatives from 1(3)-formyl-β-carbolines using elemental sulfur activated by Et3N/DMSO. This expeditious catalyst-free reaction proceeds through the formation of β-carboline-based 2-nitrochalcones followed by an incorporation of sulfur to generate multifunctional β-carboline-linked benzothiophenones in good to excellent yields. The synthetic strategy could also be extended towards the synthesis of β-carboline-linked benzothiophenes. Moreover, the afforded products emerged as promising fluorophores and displayed excellent light-emitting properties with quantum yields (ΦF) up to 47%.