Abstract Reactions of 10-(4-aminopiperazino)-10, 11-dihydrodibenzo [b, f] thiepins XIVa- XIVd with benzaldehyde, 3, 4-dimethoxybenzaldehyde, 4-dimethylaminobenzaldehyde, salicylaldehyde, 3-ethoxy-4-hydroxybenzaldehyde, 2-(2-dimethylaminoethoxy) benzaldehyde, 3-(2-dimethylaminoethoxy) benzaldehyde and 3-ethoxy-4-(2- dimethylaminoethoxy) benzaldehyde afforded a series of 19 hydrazones IIIa-Xc. Some of ...