Synthesis of 1-alkyl-5,6-bis(alkylthio)-1,2-dihydropyridines and their thermally induced conversion into 1-alkyl-3-alkylthio-2H-pyridine-2-thiones
摘要:
Heating of the imidates E-2 (R and R' = alkyl) in refluxing DMF gives derivatives 3 of 1,2-dihydropyridine, which at higher temperatures lose alkane R'H with formation of the cyclic thioamides 4. (C) 1998 Elsevier Science Ltd. All rights reserved.