Electrochemical synthesis and studies of substituted 2-thiopyridines
摘要:
A series of substituted 2-alkyl(aryl-, hetaryl-)thiopyridines was prepared by cathodic electrolysis of thiols in the presence of 2-chloro-3-cyano-4-methoxymethyl-6-methylpyridine or 4-chloro-6-methyl-3-oxo-1 H-furo[3,4-c]pyridine. The reaction of 3-cyano-4-methoxymethyl-6-methyl-2(1H)-thiopyridone with alkyl halides in the presence of KOH is regioselective and leads to S-alkyl derivatives. The advantages of electrosynthesis for the preparation of 2-alkylthiopyridines fused with 2(5H)-furanone and of 3-aminothieno[2,3-b]pyridines is demonstrated.
Synthesis of substituted 2-alkyl(aryl)thio-3-cyanopyridines and 3-aminothieno[2,3-b]pyridines
作者:E. I. Kaigorodova、L. D. Konyushkin、S. N. Mikhailichenko、V. K. Vasilin、V. G. Kul'nevich
DOI:10.1007/bf01169240
日期:1996.10
Electrochemical synthesis and studies of substituted 2-thiopyridines
作者:E. A. Kaigorodova、L. D. Konyushkin、M. E. Niyazymbetov、S. N. Kvak、V. N. Zaplishny、V. P. Litvinov
DOI:10.1007/bf00700178
日期:1994.12
A series of substituted 2-alkyl(aryl-, hetaryl-)thiopyridines was prepared by cathodic electrolysis of thiols in the presence of 2-chloro-3-cyano-4-methoxymethyl-6-methylpyridine or 4-chloro-6-methyl-3-oxo-1 H-furo[3,4-c]pyridine. The reaction of 3-cyano-4-methoxymethyl-6-methyl-2(1H)-thiopyridone with alkyl halides in the presence of KOH is regioselective and leads to S-alkyl derivatives. The advantages of electrosynthesis for the preparation of 2-alkylthiopyridines fused with 2(5H)-furanone and of 3-aminothieno[2,3-b]pyridines is demonstrated.