Aa. Sultan et al., SYNTHESIS OF POLYFUSED HETEROCYCLIC-SYSTEMS DERIVED FROM BIS(AMMONIOTHIO)-2-CYANOACRYLAMIDE, Phosphorus, sulfur and silicon and the related elements, 101(1-4), 1995, pp. 95-102
Some new functionally substituted -dithiolo(4,5-b)pyrrolo(2',3'-e)-4,8
-benzoquinones were obtained starting with 1,3-dithiolo(4,5-b)-4,7-ben
zoquinone derivatives and active methylene reagents. The structure oi
the obtained new compounds was assigned.