Pyridinium N-(2′-Azinyl)Aminides: Regioselective Synthesis of 2-Alkylaminoazines
摘要:
The regioselective alkylation of pyridinium-N-(2'-azinil)aminides with alkyl halides under mild conditions is described. The alkylation, combined with a reduction of the N-N bond, allows an easy preparation of 2-alkylaminoazines. (C) 2000 Elsevier Science Ltd. AU rights reserved.
The reactivity of N-(5-iodopyridin-2-yl)aminide in a copper-free Sonogashira cross-coupling process is reported. The reaction proceeds on using PdCl2(PPh3)(2) and DABCO as the base under microwave irradiation in acetonitrile or water as solvents. The process can also be carried out by traditional heating in acetonitrile on using Pd(AcO)(2)/DABCO with Cs2CO3. (C) 2011 Elsevier Ltd. All rights reserved.
Halogenation of pyridinium-N-(2′-pyridyl)aminide: An easy synthesis of halo-2-aminopyridines
作者:Carolina Burgos、Francisca Delgado、J. Luis García-Navío、M. Luisa Izquierdo、Julio Alvarez-Builla
DOI:10.1016/0040-4020(95)00478-q
日期:1995.7
The regioselective halogenation of pyridinium-N-(2'-pyridyl)aminide 1 with N-chloro, bromo or iodosuccinimide under mild conditions is described. The method, combined with a reduction of the N-N bond, allows an easy preparation of 5-halo and 3,5-dihalo-2-aminopyridines 4.
<i>N</i>-Azinylpyridinium <i>N</i>-Aminides: Intermediates for the Regioselective Synthesis of 3-Fluoro-2-aminopyridine Derivatives
作者:Aránzazu García de Viedma、Valentín Martínez-Barrasa、Carolina Burgos、M. Luisa Izquierdo、Julio Alvarez-Builla