| 摘要 |
<p>Novel 1-imino-3-(4-thioxo-5-thiazolidinylidene)-isoindolines of the formula in which R, R1, R2 and R3 are the same or different hydrogen, alkyl having one to three carbon atoms, alkoxy having one to three carbon atoms, halo, trifluoromethyl, phenyl or phenyl substituted by alkyl having one to three carbon atoms, alkoxy having one to three carbon atoms or halogen; and Z is oxygen or sulfur. Said compounds by reaction with an appropriate metal salt produce metal chelates useful as water-insoluble pigments.</p> |
