A novel and efficient method for the selective synthesis of sulfinylated benzofulvenes has been developed through the BF3·Et2O-promoted electrophilic addition/cyclization of 1,3-enynes. This metal-free cascade reaction employs readily accessible arylsulfinic acids as sulfinyl cation sources at room temperature and provides a wide range of functionalized benzofulvenes in good to excellent yields under
通过BF 3 ·Et 2 O 促进的1,3-烯炔的亲电加成/环化,开发了一种选择性合成亚磺酰化苯并富烯的新型高效方法。这种无
金属级联反应在室温下使用容易获得的芳基亚
磺酸作为亚磺酰基阳离子源,并在温和条件下以良好到优异的产率提供广泛的官能化苯并富烯。