中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
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 3,5-dimethyl-4-(2,2,2-trifluoro-1-methoxyethyl)-1H-pyrrole-2-carboxylate | 184775-09-5 | C17H18F3NO3 | 341.33 |
—— | 5-methoxycarbonyl-3-methyl-4-(2,2,2-trifluoro-1-methoxyethyl)pyrrole-2-carboxylic acid | 184775-12-0 | C11H12F3NO5 | 295.215 |
—— | benzyl 4-methyl-3-((S)-2,2,2-trifluoro-1-hydroxyethyl)pyrrole-2-carboxylate | 220802-60-8 | C15H14F3NO3 | 313.276 |
—— | benzyl 4-methyl-3-((R)-2,2,2-trifluoro-1-hydroxyethyl)pyrrole-2-carboxylate | 220802-59-5 | C15H14F3NO3 | 313.276 |
—— | benzyl 3,5-dimethyl-4-(trifluoroacetyl)pyrrole-2-carboxylate | 205492-38-2 | C16H14F3NO3 | 325.287 |
—— | benzyl 4-methyl-3-(2,2,2-trifluoro-1-methoxyethyl)-1H-pyrrole-2-carboxylate | 184775-15-3 | C16H16F3NO3 | 327.303 |
—— | 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 |
—— | 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'R)-4,3'-dimethyl-3,4'-bis(2,2,2-trifluoro-1-hydroxyethyl)-2,2'-dipyrrylmethane-5,5'-dicarboxylate | 220802-63-1 | 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 3,4'-bis(2,2,2-trifluoro-1-methoxyethyl)-4,3'-dimethyl-2,2'-dipyrrylmethane-5,5'-dicarboxylate | 184775-17-5 | C33H32F6N2O6 | 666.617 |
—— | 3,4'-bis(2,2,2-trifluoro-1-methoxyethyl)-4,3'-dimethyl-2,2'-dipyrrylmethane-5,5'-dicarboxylic acid | 184775-18-6 | C19H20F6N2O6 | 486.368 |
—— | 3,5-Dimethyl-4-[(R)-2,2,2-trifluoro-1-((1S,4R)-4,7,7-trimethyl-3-oxo-2-oxa-bicyclo[2.2.1]heptane-1-carbonyloxy)-ethyl]-1H-pyrrole-2-carboxylic acid benzyl ester | 205492-36-0 | C26H28F3NO6 | 507.507 |
—— | 3,4'-bis(2,2,2-trifluoro-1-methoxyethyl)-4,3'-dimethyl-2,2'-dipyrrylmethane | 184775-19-7 | C17H20F6N2O2 | 398.348 |
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.