Recently, sulfonylation reactions using potassium/sodium metabisulfite as the sulfur dioxide
surrogate have been developed rapidly. In most cases, the transformations go through …

The direct β-C (sp2)–H functionalization of enamides has attracted increasing attention
among the chemical community, due to the diverse biological and pharmaceutical activities …

An efficient, photoredox-catalyst-free radical alkylation of quinoxalin-2 (1 H)-ones has been
described. This reaction utilizes 4-alkyl-1, 4-dihydropyridines (R-DHPs) as alkyl radical …

An organocatalytic enantioselective radical reaction of potassium alkyltrifluoroborates,
DABCO·(SO2) 2 and α, β-unsaturated carbonyl compounds under photoinduced conditions …

The direct conversion of feedstock chemicals into value-added products is of broad interest
in chemical research. Herein, we present a regioselective and diastereoselective three …

A metal-free route to alkynyl sulfones under photoinduced conditions is accomplished,
starting from 4-alkyl Hantzsch esters, sulfur dioxide, and alkynyl bromides under visible light …

A copper-catalyzed three-component reaction of O-acyl oximes, DABCO·(SO2) 2, and 2H-
azirines under mild conditions has been achieved. This protocol provides an efficient route …

A simple and efficient visible-light photoredox-catalyzed four component tandem reaction of
quinoxalin-2 (1H)-ones, alkenes, aryldiazonium, and sodium metabisulfite has been …

A direct and efficient visible-light-induced cascade cyclization reaction of aryl ynones with 4-
alkyl-DHPs for the divergent synthesis of indenones, thioflavones and spiro [5.5] trienones …

Activation of C− C bonds allows editing of molecular skeletons, but methods for selective
activation of nonpolar C− C bonds in the absence of a chelation effect or a driving force …