An efficient sodium hydrogen sulfate catalyzed alkylation of indoles or amines with tertiary enamides has been accomplished in water, affording the pharmacologically and biologically active 2-oxo-1-pyrrolidine derivatives in moderate to excellent yields. The key to our success is the use of NaHSO4 as a low loading, inexpensive, green and recyclable catalyst and the reactions could be scaled up to gram level.
高效
硫酸氢钠催化
吲哚或胺与三级烯胺酯在
水相中的烷基化反应得以实现,从而在中等至优异的收率下获得药理学和
生物活性相关的2-氧代-1-
吡咯烷衍
生物。我们成功的关键在于使用低负载量、经济实惠、环保且可回收的NaHSO4作为催化剂,并且这些反应可以放大至克级规模。