of phenylglycinol derivatives with terminal and internalalkynes directed by picolinamide auxiliary has been developed. This method offers an efficient and highly regioselective route for the synthesis of 1-hydroxymethyltetrahydroisoquinolines. The reaction employs commercially available Co(II) catalyst in the presence of Mn(III) cooxidant and oxygen as a terminal oxidant, and proceeds with full preservation
Complementary Heterogeneous/Homogeneous Protocols for the Synthesis of Densely Functionalized Benzo[<i>d</i>]sultams: C−C Bond Formation by Intramolecular Nucleophilic Aromatic Fluorine Displacement
from the corresponding open chain (pentafluorobenzene)sulfonamides 4 by complementary solid-liquid phase transfer catalysis (SL-PTC) and homogeneous protocols. The cyclization step proceeds through the intramolecular nucleophilic displacement of an aromatic fluorine atom.