SOME FURTHER 2-(4-SUBSTITUTED 1-PIPERAZINYL)ACETAMIDES DERIVED FROM 6,11-DIHYDRODIBENZOTHIEPIN. TRANSFORMATIONS OF 6,11-DIHYDRODIBENZOTHIEPIN DERIVATIVES INTO ANTHRAQUINONES,ANTHRONES AND ANTHRACENES
Reactions of the secondary amines I and VIII with chloroacetyl chloride gave the 2-chloroacetamides II and IX affording by substitution reactions with 1-methylpiperazine, 2-(1-piperazinyl)ethanol and 3-(1-piperazinyl)propanol the title compounds III-V and