thioalkynes from dihalo(imidazolium) sulfuranes are reported and their reactivities as CN(+) and R-CC(+) synthons evaluated, respectively. The easy and scalable preparation of these electrophilic reagents, their operationally simple handling, broad substrate scope, and functional group tolerance clearly illustrate the potential of these species to become a reference for the direct electrophilic cyanation
报道了从二卤(
咪唑鎓)
硫烷合成
咪唑鎓
硫氰酸盐和
咪唑鎓
硫代
炔烃,并分别评估了它们作为 CN(+) 和 R-CC(+) 合成子的反应性。这些亲电试剂的简单和可扩展的制备、操作简单的操作、广泛的底物范围和官能团耐受性清楚地说明了这些物种成为有机底物直接亲电
氰化和炔化的参考的潜力。