?-Ketoaldehydes in the synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones
摘要:
An efficient synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones by the reactions of the sodium salts of beta-ketoaldehydes with cyanothioacetamide was developed. Pyridinethiones undergo selective S-alkylation with haloacetonitriles and haloacetophenones followed by cyclization to the corresponding thieno[2,3-b] pyridines.
?-Ketoaldehydes in the synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones
摘要:
An efficient synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones by the reactions of the sodium salts of beta-ketoaldehydes with cyanothioacetamide was developed. Pyridinethiones undergo selective S-alkylation with haloacetonitriles and haloacetophenones followed by cyclization to the corresponding thieno[2,3-b] pyridines.
?-Ketoaldehydes in the synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones
作者:N. G. Frolova、V. K. Zav'yalova、V. P. Litvinov
DOI:10.1007/bf00698508
日期:1995.4
An efficient synthesis of 6-alkyl-3-cyano-2(1H)-pyridinethiones by the reactions of the sodium salts of beta-ketoaldehydes with cyanothioacetamide was developed. Pyridinethiones undergo selective S-alkylation with haloacetonitriles and haloacetophenones followed by cyclization to the corresponding thieno[2,3-b] pyridines.