Radical cyclizations of 1,4-dihydropyridines. Synthesis of chiral fused nitrogen heterocycles. Synthesis of lupinine and epilupinine
作者:Pierre Mangeney、Louis Hamon、Sabine Raussou、Nicolas Urbain、Alexandre Alexakis
DOI:10.1016/s0040-4020(98)00490-6
日期:1998.8
Radical cyclizations of 1-(4-iodoalkanoyl)-3-formyl-4-methyl-1,4-dihydropyridines are described and discussed. A regio and diasteroselective reaction is obtained under ultrasonic conditions. An application to the synthesis of lupinine and epilupinine is shown.
描述和讨论了1-(4-碘链烷酰基)-3-甲酰基-4-甲基-1,4-二氢吡啶的自由基环化。在超声条件下获得区域和非对映选择性反应。显示了在羽扇豆碱和表羽扇豆碱的合成中的应用。