Return to Article Details CONDENSED SULFUR-CONTAINING PYRIDINE SYSTEMS. 3. CONSTRUCTION OF PENTA- AND HEXACYCLIC HETEROCYCLIC SYSTEMS BY THE CASCADE REACTION OF 3-CYANOPYRIDINE-2(1<i>H</i>)-THIONES AND 3-CYANOPYRIDINE-2(1<i>H</i>)-THIOLATES WITH 8-CHLOROMETHYL-3-METHYL-7-(2-OXO-2-PHENYLETHYL)XANTHENE Download Download PDF