A catalytic amount of triarylaminium salt is demonstrated to be an efficient initiator for oxidative Mannich reaction of tertiary amines and nonactivated ketones under mild neutral conditions. Air is essential for this reaction and acts as a terminal oxidant. Metal catalysts, acid or base additives, and stoichiometric amounts of chemical oxidants are all avoided in this methodology. Six examples of
Visible light mediated photocatalytic oxidative coupling reaction of N -phenyl tetrahydroisoquinoline with β-keto acids
作者:Su Jin Kwon、Min Gyun Gil、Dae Young Kim
DOI:10.1016/j.tetlet.2017.03.026
日期:2017.4
A visible light mediated photocatalytic oxidative coupling reaction of N-phenyl tetrahydroisoquinoline with β-keto acids has been developed. This approach provides a mild and operationallysimple access to the synthesis of C1-acylmethylated tetrahydroisoquinolines.