Reduction of α,α-dialkoxy-substituted nitroxides: the synthesis of α-alkoxynitrones and acetals ofN-hydroxyamides
摘要:
Reduction of stable nitroxides derived from tetrahydrooxazole, tetrahydroimidazole, 2,5-dihydroimidazole, and 2,5-dihydroimidazole 3-oxide containing alkoxy groups in alpha-position to the nitroxyl group affords alpha-alkoxynitrones, acetals of N-hydroxyamides, or their equilibrium mixtures.
Oxidative alkoxylation of 4H-imidazole N-oxides as a new method of synthesis of stable nitroxyl radicals of the 2- and 3-imidazoline series with alkoxy groups at the ?-carbon atom of the radical center