中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | benzyl 3,5-dimethyl-4-(2,2,2-trifluoro-1-hydroxyethyl)pyrrole-2-carboxylate | 184775-08-4 | C16H16F3NO3 | 327.303 |
—— | benzyl 3,5-dimethyl-4-(trifluoroacetyl)pyrrole-2-carboxylate | 205492-38-2 | C16H14F3NO3 | 325.287 |
3,5-二甲基-1H-吡咯-2-甲酸苄酯 | benzyl 3,5-dimethylpyrrole-2-carboxylate | 40236-19-9 | C14H15NO2 | 229.279 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
—— | benzyl 5-acetoxymethyl-3-methyl-4-((S)-2,2,2-trifluoro-1-hydroxyethyl)pyrrole-2-carboxylate | 380231-99-2 | C18H18F3NO5 | 385.34 |
—— | benzyl 4-((S)-1-acetoxy-2,2,2-trifluoroethyl)-3,5-dimethylpyrrole-2-carboxylate | 220802-47-1 | C18H18F3NO4 | 369.34 |
—— | 3-((S)-1-Acetoxy-2,2,2-trifluoro-ethyl)-4-methyl-1H-pyrrole-2,5-dicarboxylic acid 5-benzyl ester | 220802-50-6 | C18H16F3NO6 | 399.323 |
—— | benzyl 4-((S)-1-acetoxy-2,2,2-trifluoroethyl)-5-methoxycarbonyl-3-methylpyrrole-2-carboxylate | 220802-52-8 | C19H18F3NO6 | 413.35 |
—— | benzyl 4-methyl-3-((S)-2,2,2-trifluoro-1-hydroxyethyl)pyrrole-2-carboxylate | 220802-60-8 | C15H14F3NO3 | 313.276 |
—— | 4-((S)-1-acetoxy-2,2,2-trifluoroethyl)-5-methoxycarbonyl-3-methylpyrrole-2-carboxylic acid | 220802-54-0 | C12H12F3NO6 | 323.226 |
—— | dibenzyl (3S,4'S)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylate | 220802-72-2 | C31H28F6N2O6 | 638.564 |
—— | dibenzyl (3R,4'S)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylate | 220802-66-4 | C31H28F6N2O6 | 638.564 |
—— | dibenzyl (3S,4'R)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylate | 220802-69-7 | C31H28F6N2O6 | 638.564 |
—— | (3S,4'S)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylic acid | 220802-74-4 | C17H16F6N2O6 | 458.314 |
—— | (3R,4'S)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylic acid | 220802-67-5 | C17H16F6N2O6 | 458.314 |
—— | (3S,4'R)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylic acid | 220802-70-0 | C17H16F6N2O6 | 458.314 |
—— | methyl 3-((S)-1-acetoxy-2,2,2-trifluoroethyl)-4-methylpyrrole-2-carboxylate | 220802-58-4 | C11H12F3NO4 | 279.216 |
—— | methyl 4-((S)-1-acetoxy-2,2,2-trifluoroethyl)-2-iodo-3-methylpyrrole-5-carboxylate | 220802-56-2 | C11H11F3INO4 | 405.112 |
—— | (S)-2,2,2-Trifluoro-1-{4-methyl-2-[3-methyl-4-((S)-2,2,2-trifluoro-1-hydroxy-ethyl)-1H-pyrrol-2-ylmethyl]-1H-pyrrol-3-yl}-ethanol | 220802-75-5 | C15H16F6N2O2 | 370.295 |
—— | (S)-2,2,2-Trifluoro-1-{4-methyl-2-[3-methyl-4-((R)-2,2,2-trifluoro-1-hydroxy-ethyl)-1H-pyrrol-2-ylmethyl]-1H-pyrrol-3-yl}-ethanol | 220802-71-1 | C15H16F6N2O2 | 370.295 |
—— | (R)-2,2,2-Trifluoro-1-{4-methyl-2-[3-methyl-4-((S)-2,2,2-trifluoro-1-hydroxy-ethyl)-1H-pyrrol-2-ylmethyl]-1H-pyrrol-3-yl}-ethanol | 220802-68-6 | C15H16F6N2O2 | 370.295 |
With the aim of furthering our investigations into the asymmetric complexation of dipyrrinato ligands, a dipyrrin bearing a stereogenic centre directly adjacent to the conjugated skeleton was synthesized. The electron-withdrawing nature of the chiral 4-(2,2,2-trifluoro-1-hydroxyethyl)- substituent significantly reduced the nucleophilicity of corresponding pyrroles, such that 2,2′-symmetrically substituted bis(dipyrrin)s bearing this motif were inaccessible. Furthermore, solutions of mononuclear dipyrrinato complexes were found to be less stable to acid-catalyzed decomplexation than the corresponding dinuclear complexes.Key words: dipyrrin, dipyrromethene, complexation, electron-poor pyrrole, chirality.