| 摘要 |
Dicarboxylic acid derivs. of formula Z-COO-C(COOR1)(COOR2)R3 (I) are new. Z-COO = the residue of an iodinated aromatic acid (IAA); R1, R2 = alkyl, fluoroalkyl, cycloalkyl, aryl or aralkyl; R3 = H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy, aryloxy, CN, sulphonate, carboxamido, sulphonamido, alkoxycarbonyl, aryloxycarbonyl or aralkoxycarbonyl. 1AA = metrizoic, urokanic, iothalanic, trimesic, ioxagalic, ioxitalamic or tetraiodoterephthalic acid, iodipamide or esp. diatrizoic acid; R1, R2 = CF3; R3 = H, Me or CF3. |
