Intramolecular electrophilic cyclization of functional derivatives of unsaturated Compounds: I. Synthesis of 5-arylsulfanyl-6-phenylpiperidin-2-ones from cinnamylacetamides and arylsulfenyl chlorides
作者:A. I. Vas’kevich、N. M. Tsizorik、E. B. Rusanov、V. I. Stanitets、M. V. Vovk
DOI:10.1134/s1070428011080057
日期:2011.8
nonhindered N-alkyl(aryl)amides of cinnamylacetic acid in the reaction with phenyl(4-tolyl)sulfenyl chlorides in acetic acid in the presence of lithium perchlorate undergo a selective cyclization into 5-arylsulfanyl-6-phenylpiperidin-2-ones. Under similar conditions the reaction with arylsulfenylchlorides of amides containing bulky substituents at the nitrogen atom resulted in 5-arylsulfanyl-6-phenyl