SCHIFF BASES

摘要

Schiff bases having formula (I) wherein R<1> signifies CH3, C2H5, R<2> signifies H, CH3, R<3> signifies H, C1-4-alkyl, R<4>, R<5>, R<6>, R<7> signify H, CH3, C2H5, CH2CH2CH3, CH(CH3)2, X signifies methylene, ethylidene, propylidene, ethylene, propylene, 2,3-butylidene, total number of carbon atoms of R<4>, R<5>, R<6>, R<7>,