Yucai Tang

Photocatalytic Four-Component Sulfonylation/ Ipso -Spirocyclization of N -Arylpropiolamides with Thianthrenium Salts, DABSO and H2O: Access to 3-Sulfonyl-Azaspiro[4.5]trienones

Abstract A visible-light-induced sodium fluorescein-catalyzed four-component cascade reaction of N-arylpropiolamides, aryl thianthrenium salts, DABSO, and H2O has been developed, providing efficient access to diverse 3-sulfonyl-azaspiro[4.5]trienones in moderate to good yields. T...