Direct alkylation of indoles and amines by tertiary enamides for the synthesis of pharmaceutically active 2-oxo-1-pyrrolidine analogues was described. With only a 0.5 mol% catalyst loading, molecular iodine was demonstrated to be efficiently enough to promote the reaction under neat condition. Only Markovnikov addition product was obtained indicating that the reactions proceeded with excellent regioselectivity.
本文报道了利用叔烯胺酯直接对
吲哚和胺进行烷基化反应,合成药理活性2-氧代-1-
吡咯烷类似物的方法。实验表明,在无溶剂条件下,仅需0.5 mol%的催化剂负载量,分子
碘即可高效促进反应进行。产物仅为Markovnikov加成物,表明反应具有极高的区域选择性。