Abstract Reduction of N-(2-chloro-10, 11-dihydrodibenzo [b, f] thiepin-10-yl) formamide with lithium aluminium hydride resulted in the methylamino compound IV. The dimethylamino compound V was obtained by methylation of 10-amino-2-chloro-10, 11-dihydrodibenzo [b, f] thiepin with formic acid and aqueous formaldehyde. Substitution reactions of 2, 10-dichloro- 10, 11-dihydrodibenzo [b, f] thiepin with a series of primary and secondary amines ...
