provides convenient access to a range of enantioenriched spirocyclic 1,3-diketones in moderate to high yields and enantioselectivities and features a broad substrate scope in terms of enol lactones. The catalytic capability of this triazolium salt catalyst is also demonstrated in this enantioselective transformation, which could inspire its further application.
提出了一种
SPA-三唑
溴化物催化的烯醇内酯的跨环C-酰化。这种方法可以方便地以中等至高产率和对映选择性获得一系列对映体富集的螺环 1,3-二酮,并且在烯醇内酯方面具有广泛的底物范围。这种对映选择性转化也证明了这种三唑鎓盐催化剂的催化能力,这可能会激发其进一步的应用。