Electrophilic fluorination of N,N-dimethylaniline, N,N-dimethylnaphthalen-1-amine and 1,8-bis(dimethylamino)naphthalene with N–F reagents
作者:Vladimir I. Sorokin、Alexander F. Pozharskii、Valery A. Ozeryanskii
DOI:10.1016/j.jfluchem.2013.06.017
日期:2013.10
Reaction of N,N-dimethylaniline, N,N-dimethylnaphthalen-1-amine and 1,8-bis(dimethylamino)naphthalene (proton sponge) with 1-chloromethyl-4-fluorodiazonia-bicyclo[2.2.2]octane bis(tetrafluoroborate) (Selectfluor) and N-fluorobenzenesulfonimide (NFSI) has been studied under various conditions. Unlike the proton sponge, which is fluorinated rather selectively at the ortho-position to NMe2 group, producing
Synthesis of N,N,N’,N’-tetraalkylbenzidines through oxidative coupling of N,N-dialkylarylamines induced by SbCl5
作者:Paola Vitale、Leonardo Di Nunno、Antonio Scilimati
DOI:10.3998/ark.5550190.0014.304
日期:——
The oxidativecoupling to 4,4'-N,N,N',N'-tetraalkylbenzidines is the main reaction observed during a study on the reactivity of N,N-dialkylanilines with SbCl 5. A possible reaction mechanism is presented and discussed in comparison with the N,N-dialkylanilines oxidativecoupling achieved with other Lewis acids.
作者:N. V. Vistorobskii、A. F. Pozharskii、M. I. Rudnev
DOI:10.1007/bf02495514
日期:1998.1
at low temperatures. Treatment of the reaction product with excess Li and then with O2 gave, depending on the reaction temperature, perylene or 4,4′-bis(dimethylamino)-1,1′-binaphthalene in good yields, instead of expected 3,4,9,10-tetrakis(dimethyl-amino)perylene.
The iron(III)-promoted free radical oxidation of anilines has been further developed. Anilines including those bearing strong electron-withdrawing groups on benzene ring were readily converted into corresponding self-coupling benzidines. With addition of base, the methyl on nitrogen was activated and the free radical oxidations tended to furnish the corresponding self-bridged assembling diaminodiarylmethanes. (C) 2015 Elsevier Ltd. All rights reserved.
A novel arylation of arylacetic acid esters using tertiary arylamines and TiCl4
The reactions of arylacetic acid esters with tertiary arylamines in the presence of TiCl4 give alpha-arylated products in 65-90% yields, as well as 10-20% yields of the corresponding benzidines. (C) 2003 Elsevier Ltd. All rights reserved.