A new and general synthetic route to prepare dibenzosultams is here reported. This approach involves the synthesis of N-aryl-2-halobenzenesulfonamides (3), followed by intramolecular C–C photoinduced arylation under soft conditions without the use of “Transition Metal”. The photostimulated reactions exhibit very good tolerance to different substituent groups with good to excellent isolated yields (42–98%)
本文报道了一种制备二苯并舒马坦的新的通用合成路线。这种方法涉及合成N-芳基-2-卤代苯磺酰胺(3),然后在不使用“过渡
金属”的条件下,在柔软条件下进行分子内C-C光诱导的芳基化。光刺激的反应对不同的取代基具有很好的耐受性,分离出的产物的收率很高(42-98%)。此外,显示LED(λ= 395 nm)是有效引发反应的有效光能源。对该机理进行了理论检验,以探究自由基阴离子S RN 1工艺的参与。