Controlled Photoredox Ring-Opening Polymerization of <i>O</i>-Carboxyanhydrides
作者:Quanyou Feng、Rong Tong
DOI:10.1021/jacs.7b01462
日期:2017.5.3
Poly(α-hydroxyacids) are important biodegradable polymers with wide applications. Attempts to synthesize them from O-carboxyanhydrides with pendant functional groups by various methods, including methods involving organocatalysts or organometallics, have been plagued by uncontrolled polymerization, including epimerization for some monomers, which hampers the preparation of stereoregular high-molecular-weight
Regioselective Formal β‐Allylation of Carbonyl Compounds Enabled by Cooperative Nickel and Photoredox Catalysis
作者:Kun Liu、Zhe Wang、Augustinus N. Künzel、Marcus Layh、Armido Studer
DOI:10.1002/anie.202303473
日期:2023.9.11
A regioselective formal Tsuji–Trost β-allylation of various carbonyl compounds with different allylic electrophiles is reported. Reactions proceed through initial silyl enol ether formation and subsequent cooperativephotoredox/nickel catalysis.