Selective synthesis of mono- and distannylpyridines from chloropyridinols via an SRN1 mechanism
作者:Gustavo F. Silbestri、Marcos J. Lo Fiego、María T. Lockhart、Alicia B. Chopa
DOI:10.1016/j.jorganchem.2010.08.032
日期:2010.11
selective two-step synthesis of either mono- or distannylated pyridines from commercially available pyridinols, involving its conversion to the corresponding diethyl pyridyl phosphates (pyDEP) followed by the reaction with Me3SnNa in liquid ammonia, is described. The results obtained clearly indicate that the reactions proceed through an unimolecular radical nucleophilic substitution mechanism (SRN1) with
描述了从可商购获得的吡啶醇选择性或两步合成二甲氧基吡啶的方法,包括将其转化为相应的二乙基吡啶基磷酸酯(pyDEP),然后与Me 3 SnNa在液氨中反应。 所获得的结果清楚地表明,反应是通过单分子自由基亲核取代机理(S RN 1)进行的,该反应是单取代产物的中间产物。