Synthesis of l-[(l,2-dithiol-3-ylidene)methyl]pyrrolo[l,2-a]pyrazines and 2-[(l,2-dithiol-3-ylidene)methyl]pyridines from l,2-dithiole-3-thiones

摘要

Benzo-and pyridoannulated l,2-dithiole-3-thiones react with compounds containing an activated methyl group such as l-methyl-3,4-dihydropyrrolo[l,2-a]pyrazine and 2-methyl-pyridines to furnish substituted l,2-dithiol-3-ylidenes.