Intramolecular trapping of N-nitrenes: trapping by a remote 2,4-dimethoxyphenyl ring
Abstract
From oxidation of the N-aminoquinazolone (2) in methanol, three crystalline products (4), (5), and (6) have been isolated and the structures of two of them confirmed by X-ray crystallography; oxidation of (2) in benzene yields the meta-bridged N-nitrene ‘insertion’ product (3) in 60% yield.