Recent advances in photocatalysis have enabled radical methods with complementary chemoselectivity to established two electron bond forming approaches.While this radical strategy has previously been limited to substra...Recent advances in photocatalysis have enabled radical methods with complementary chemoselectivity to established two electron bond forming approaches.While this radical strategy has previously been limited to substrates with favorable redox potentials,Brønsted/Lewis acid activation has emerged as a means of facilitating otherwise difficult reductions.We report herein our investigations into the Lewis acid-promoted redox activation ofβ-ketocarbonyls in a model photocatalytic radical alkylation reaction.Rapid evaluation of substrates and reactions conditions was achieved by high throughput experimentation using 96-well plate photoreactors.展开更多
基金We thank Northwestern University and the National Institute of General Medical Sciences(Nos.R01 GM131431 and R35 GM136440)for support of this work.
文摘Recent advances in photocatalysis have enabled radical methods with complementary chemoselectivity to established two electron bond forming approaches.While this radical strategy has previously been limited to substrates with favorable redox potentials,Brønsted/Lewis acid activation has emerged as a means of facilitating otherwise difficult reductions.We report herein our investigations into the Lewis acid-promoted redox activation ofβ-ketocarbonyls in a model photocatalytic radical alkylation reaction.Rapid evaluation of substrates and reactions conditions was achieved by high throughput experimentation using 96-well plate photoreactors.
