Diastereoselective multicomponent synthesis of (4RS,6SR)-4,6-diaryl-5,5-dicyano-2-methyl-1,4,5,6-tetrahydropyridine-3-carboxylates
作者:A. N. Vereshchagin、K. A. Karpenko、T. M. Iliyasov、M. N. Elinson、E. O. Dorofeeva、A. N. Fakhrutdinov、M. P. Egorov
DOI:10.1007/s11172-018-2327-9
日期:2018.11
Multicomponent reaction of benzylidenemalononitrile, 2-acetyl-3-arylacrylates, and aqueous ammonia in alcohols at room temperature proceeds stereoselectively to give (4RS,6SR)-4,6-diaryl-5,5-dicyano-2-methyl-1,4,5,6-tetrahydropyridine-3-carboxylates in 55–87% yields. In this reaction, ammonia acts as both the catalyst and the source of nitrogen for constructing tetrahydropyridine cycle.
亚苄基丙二腈、2-乙酰基-3-芳基丙烯酸酯和氨水在室温下在醇中立体选择性地进行多组分反应,得到(4RS,6SR)-4,6-二芳基-5,5-二氰基-2-甲基-1,4 ,5,6-四氢吡啶-3-羧酸盐的产率为 55-87%。在该反应中,氨既是催化剂,又是构建四氢吡啶循环的氮源。