Charge transfer complex enabled photoreduction of ether phosphonium salts for the selective oxyalkylation of enamides

An Organocatalytic System for Z-Alkene Synthesis via a Hydrogen-Bonding-Assisted Photoinduced Electron Donor–Acceptor Complex

“…A more flexible three-component EDA complex catalytic approach was disclosed by Shang, Fu, and co-workers involving a catalytic donor (triphenylphosphine), an electron-deficient acceptor (redox-active esters, RAEs), and sodium iodide (NaI) as an additive (Scheme b) . Besides, thiol-based anions, tertiary amines, organophosphines, phenols, iodide anoins, and even enzymes were revealed to be effective catalytic donors. These catalytic donors successfully feed the radicals for a single-electron-transfer (SET) catalytic cycle, which results in a product.…”

Electroreductive carboxylation of benzylphosphonium salts with CO2 through the cleavage of the C(sp3)–P bond

“…11 In the second strategy, the C(sp 3 )–P bond of alkyl phosphonium salts undergoes homolytic cleavage to form an alkyl radical through a single-electron transfer (SET) and is then trapped by radical receptors to produce new chemical bonds. 5 b ,12 Despite these advances in the functionalization of phosphonium salts, to the best of our knowledge, there is no example of achieving the functionalization of phosphonium salts through carboanion processes. Organic electrosynthesis is defined as a green synthetic technique that avoids the use of redox reagents and many excellent studies on organic electrosynthesis have been carried out.…”