Novel macrocyclic oligomers were synthesized through the condensation of phenolphthalein and m phthaloyl dichloride with triethylamine as catalyst in the mixed solution of methylene chloride and THF via pseudo high di...Novel macrocyclic oligomers were synthesized through the condensation of phenolphthalein and m phthaloyl dichloride with triethylamine as catalyst in the mixed solution of methylene chloride and THF via pseudo high dilution technique. The oligomers were characterized by IR, 1H NMR , MS, WAXD, TGA and DSC. It was found that the 3∶3 adduct(molar ratio of phenolphthalein to m phthaloyl dichloride) and the 4∶4 adduct were the main products and there was a small amount of crystalline in the macrocyclic mixtures. When the mixtures were heated to 360 ℃ , the crystalline disappeared.展开更多
Key intermediate bis[2-amino-4,5-(15-crown-5)phenyl]diselenide was obtained by the convenient redox method. Crown-ether type host molecule containing Se-Se bond 2,11-dioxo-4,5:8,9-di(benzo[4',5']-15-crown-5)-6...Key intermediate bis[2-amino-4,5-(15-crown-5)phenyl]diselenide was obtained by the convenient redox method. Crown-ether type host molecule containing Se-Se bond 2,11-dioxo-4,5:8,9-di(benzo[4',5']-15-crown-5)-6,7-diselena-3,10,16-triazabicyclo[10,3,1]hexadeca-1(16), 4, 8, 12, 14-pentaene was synthesized with high dillution technique.展开更多
文摘Novel macrocyclic oligomers were synthesized through the condensation of phenolphthalein and m phthaloyl dichloride with triethylamine as catalyst in the mixed solution of methylene chloride and THF via pseudo high dilution technique. The oligomers were characterized by IR, 1H NMR , MS, WAXD, TGA and DSC. It was found that the 3∶3 adduct(molar ratio of phenolphthalein to m phthaloyl dichloride) and the 4∶4 adduct were the main products and there was a small amount of crystalline in the macrocyclic mixtures. When the mixtures were heated to 360 ℃ , the crystalline disappeared.
文摘Key intermediate bis[2-amino-4,5-(15-crown-5)phenyl]diselenide was obtained by the convenient redox method. Crown-ether type host molecule containing Se-Se bond 2,11-dioxo-4,5:8,9-di(benzo[4',5']-15-crown-5)-6,7-diselena-3,10,16-triazabicyclo[10,3,1]hexadeca-1(16), 4, 8, 12, 14-pentaene was synthesized with high dillution technique.
