The intramolecular photochedcal interaction of a series of bis-coumarinyl compounds with various alkyl chain lengths (An) has been studied in/without the presence of β-cyclodextrin (β-CD) by fluorescence spectroscop...The intramolecular photochedcal interaction of a series of bis-coumarinyl compounds with various alkyl chain lengths (An) has been studied in/without the presence of β-cyclodextrin (β-CD) by fluorescence spectroscopy. The results show that both photedimerization andexcimer formation can occur in the respective favourable microenvironments.展开更多
The solid state reactions of p-nitroacetophenone, acetyl-ferrocene with indole were catalyzed by anhydrous zinc chloride or aluminum chloride, and gave exclusively the 1:2 condensation products. The solid state conden...The solid state reactions of p-nitroacetophenone, acetyl-ferrocene with indole were catalyzed by anhydrous zinc chloride or aluminum chloride, and gave exclusively the 1:2 condensation products. The solid state condensation of aromatic ketones with 1-phenyl-3-methyl-5-pyrazolone was also investigated, and the 1:1 and 2:1 condensation products were obtained. The structures of eleven new products were determined by IR, MS, H-1 NMR and elemental analysis.展开更多
文摘The intramolecular photochedcal interaction of a series of bis-coumarinyl compounds with various alkyl chain lengths (An) has been studied in/without the presence of β-cyclodextrin (β-CD) by fluorescence spectroscopy. The results show that both photedimerization andexcimer formation can occur in the respective favourable microenvironments.
基金Project supported by the National Natural Science Foundation of China and State Key Laboratory of Applied Organic Chemistry of Lanzhou University.
文摘The solid state reactions of p-nitroacetophenone, acetyl-ferrocene with indole were catalyzed by anhydrous zinc chloride or aluminum chloride, and gave exclusively the 1:2 condensation products. The solid state condensation of aromatic ketones with 1-phenyl-3-methyl-5-pyrazolone was also investigated, and the 1:1 and 2:1 condensation products were obtained. The structures of eleven new products were determined by IR, MS, H-1 NMR and elemental analysis.
