N-Dealkylation-N-nitrosation of tertiary aromatic amines by N-butyl nitrite
作者:Giancarlo Verardo、Angelo G. Giumanini、Paolo Strazzolini
DOI:10.1016/s0040-4020(01)81940-2
日期:1991.9
nitrosation was never observed, but minor amounts of m- and p-nitro amines and/or nitrosamines were formed in some cases. Ring nitration is rather a reaction of the initial substrate than a process occurring on formed nitrosamines. The leaving propensities of the initial N-substituents to yield nitrosamines were in the order benzylmethyl alkyl.
Reaction of a molybdenum hydrazido(2–-) complex with silver nitrate in alcohols. Novel variant of the Bamberger reaction involving concomitant N-nitrosation
作者:Marc M. Baum、Edward H. Smith
DOI:10.1039/c39910000431
日期:——
Treatment of dichlorobis(dimethyldithiocarbamato)[N-methyl-N-phenylhydrazido(2â)-Nâ²]molybdenum(VI) with silver nitrate (3.3 equiv.) in alcoholic solvents results in cleavage of the hydrazido ligand from the metal to form p-alkoxyaniline derivatives.
作者:Giancarlo Verardo、Angelo G. Giumanini、Paolo Strazzolini
DOI:10.1016/s0040-4020(01)86768-5
日期:——
The reaction between alkyl nitrites, particularly n-butyl nitrite, and tertiaryaromaticamines under a variety of experimental conditions promptly yielded products of N-dealkylation-N-nitrosation, ring nitration, ipso-substitution and, occasionally, combinations of these processes. Aminoethers were detected as final products and intermediates on the way to N-nitrosations. Reaction pathways are suggested
Regioselective ring nitration of N-alkyl anilines is reported using tert-butyl nitrite. The reactions proceed efficiently with a wide range of substrates providing synthetically useful N-nitroso N-alkyl nitroanilines in excellent yields which can be easily converted into N-alkyl phenylenediamines and N-alkyl nitroanilines using Zn-AcOH and HCl/MeOH, respectively.