A one-pot reaction of (chlorocarbonyl) phenyl ketene with β-ketoamides and thiochromen-2-one
作者:V. Nejadshafiee、M. Abaszadeh、K. Saidi、M. Pourkhosravani
DOI:10.1007/s13738-012-0146-8
日期:2013.4
intermediates for the synthesis of heterocyclic compounds. For instance, 1-morpholino-3-phenyl-1,3-propanedione, 1-phenyl-3-piperidino-1,3-propanedione, 1-phenyl-3-pyrrolidino-1,3-propanedione, 1-piperidino-1,3-butanedione, 1-morpholino-2-phenyl ethanone were used in these reactions to produce 2-pyrone derivatives. In addition, the preparation of 4-hydroxy-3-phenylthiochromeno[4,3-b]pyran-2,5-dione derivatives
一步一步即可得到现成的(氯羰基)苯基乙烯酮和各种β-酮酰胺,以生成2-吡喃酮衍生物。β-酮酰胺衍生物是用于合成杂环化合物的通用中间体。例如,1-吗啉代-3-苯基-1,3-丙二酮,1-苯基-3-哌啶基-1,3-丙二酮,1-苯基-3-吡咯烷酮-1,3-丙二酮,1-哌啶酮-1在这些反应中,使用1-,3-丁二酮,1-吗啉代-2-苯基乙酮来生产2-吡喃酮衍生物。另外,制备4-羟基-3-苯基硫代色素[4,3-b]吡喃-2,5-二酮衍生物和4-羟基-7-甲基-3-苯基吡喃并[3,2-c]铬-描述了2,5-二酮。