Aryl sulfonyl radical triggered cascade cyclization of phenyl-linked 1,6-enynes for the synthesis of biologically important indenes containing alkenyl C-X bonds and 10a,11-dihydro-10H-benzo[b]fluorines is presented. In these radical cascade processes, three new chemical bonds, including C-

A visible light-driven metal- and oxidant-free procedure for the decarboxylative alkylation of Baylis–Hillman acetates with N-(acyloxy)phthalimides to access trisubstituted alkyl acrylates under mild reaction conditions is reported.

A metal‐ and oxidant‐free procedure for the three‐component haloazidation/cyclization of phenyl‐linked 1,6‐enynes with TMSN3 and N‐iodo(bromo)succinimide under the irradiation of visible light was described. Moreover, this reaction involved a radical addition/5‐exo‐dig cyclization/radical coupling process, and realized simultaneous construction of C−N, C−C, and C−X (I, Br) bonds in one step.

A novel photocatalytic protocol for effective and efficient synthesis of cyclic 1,5-diketone containing chroman-4-one skeletons in moderate to good yields via radical cascade acylmethylation/cyclization of 2-(allyloxy)arylaldehydes with a-bromo ketones has...

A novel three-component Pd/norbornene cooperative catalysis cascade decarboxylative [2+2+2]/[2+2+3]cyclization of 4-iodoisoquinolin-1(2H)-ones and o-bromobenzoic acids or 8-bromo-1-naphthoic acid has been developed. The method affords a range of fused phenanthridinones and hepta[1,2-c]isoquinolinones and displays unique regioselectivity and broad substrate scope. Palladium/norbornene (Pd/NBE)-catalyzed C–H activation and subsequent decarboxylative coupling reactions were involved, and NBE acts as a building block for the construction of rigid nonplanar molecular architectures.