The economical and accessible CF3SO3H successfully catalyzed homogeneous O–H and S–H bond insertion reactions between hydroxyl compounds, thiols and diazo compounds under metal- and ligand-free conditions.
An electrochemical carbenoid insertion reaction of diazo compounds into C-S and C-O bonds with electricity as oxidant has been reported in this work. In this protocol, this transformation proceeded smoothly...
Photocatalytic
benzylic C–H oxidation/cyclization
of enaminones
was efficiently achieved to afford oxazole derivatives under mild
conditions. The oxygen in the oxazole ring originated from green oxidant
molecular oxygen. The synthetic protocol features broad substrate
scopes and good functional group tolerance. The combined experimental
and theoretical studies reveal that in suit benzylic C–H oxidation/cyclization
is involved in the reaction transformations.
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