A New Method for N−N Bond Cleavage of N,N-Disubstituted Hydrazines to Secondary Amines and Direct Ortho Amination of Naphthol and Its Analogues
作者:Qiang Tang、Chao Zhang、Meiming Luo
DOI:10.1021/ja711153b
日期:2008.5.1
An unexpected reaction of N,N-disubstitutedhydrazine with naphthol and its analogues under simply thermal conditions has been disclosed. 2-Naphthol reacted with various N,N-disubstitutedhydrazines under argon to afford 1-amino-2-naphthol and the corresponding secondary amines in excellent yields. Ortho amination of 2-naphthols, hydroxyquinoline, and naphthalenamine occurred when they reacted with
The chemistry of trisulphenamides [N(SR)3]. Part I. Preparation, thermal decomposition, and reactions of tribenzenesulphenamide [N(SPh)3]
作者:Derek H. R. Barton、Ian A. Blair、Philip D. Magnus、Robert K. Norris
DOI:10.1039/p19730001031
日期:——
acetic anhydride gave tribenzenesulphenamide [N(SPh)3]. Decomposition of this substance at ca. 80° gave nitrogen and diphenyl disulphide in quantitative yields. Phenols react with tribenzenesulphenamide to give quinone phenylthioimines. Where both ortho- and para-positions in the phenol are available for substitution, ortho-substitution predominates. The mechanism of this reaction involves initial H·
The solvolysis of N-acetoxy-1-N-acetylaminonaphthalene and N-acetoxy-2-N-acetylaminonaphthalene: divergent chemistry and mutagenic activity
作者:Graham R. Underwood、Catherine M. Davidson
DOI:10.1039/c39850000555
日期:——
Upon solvolysis in neutral 40% aqueous acetone, N-acetoxy-1-N- and N-acetoxy-2-N-acetylaminonaphthalene exhibit completely different modes of reaction; the former reacts with nitrenium ion formation, while the latter undergoes acyl oxygen scission.