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Abstract
A study of the reaction of the elemental sulfur with 3-picoline is reported. The process was carried out at the boiling point of the 3-picoline under argon. After removing unreacted solids, the reaction products were identified by means of LC, GC and GC-MS. The following products have been identified: 1,2di-(3-pyridyl)-ethane, Z-1,2-di(3-pyridyl)-ethene, E-1,2-di(pyridyl)-ethene, 6-(3-pyridyl)-thieno[2,3b]pyridine, 4,5-di(3-pyridyl)-4H-cyclopenta[c]pyridine, 4,5-di(3-pyridyl)-6H-cyclopenta[c]pyridine, 6,7di(3-pyridyl)-7H-cyclopenta[b]pyridine, 6,7-di(3-pyridyl)-5H-cyclopenta[b]pyridine, tetra(3-pyridyl)cyclobutene, 6,7,8-tri(3-pyridyl)-thiepino[3,2-c]pyridine, 6,7,8-tri(3-pyridyi)-thiepino[2,3-b]pyridine and tetra(3-pyridyl)-thiophene.