Site-Selective N-Dealkylation of 1,2,3-Triazolium Salts: A Metal-Free Route to 1,5-Substituted 1,2,3-Triazoles and Related Bistriazoles
作者:Zaira Monasterio、Aitziber Irastorza、José I. Miranda、Jesus M. Aizpurua
DOI:10.1021/acs.orglett.6b01177
日期:2016.5.20
carrying latent “click” functionality, followed by a nucleophile-promoted N1-dealkylation of the resulting strongly electrophilic intermediate triazolium salts, provides an efficient route to 1,5-disubstituted 1,2,3-triazoles. The azide and alkyne groups incorporated by N-alkylation can be submitted to further copper-catalyzedazide–alkyne and Huisgen cycloadditions to provide bis(1,2,3-triazoles)
Ionic Liquid-Phase Synthesis of 1,5-Disubstituted 1,2,3-Triazoles
作者:Shinichi Koguchi、Kazuki Izawa
DOI:10.1021/co500065e
日期:2014.8.11
A simplified ionic liquid-phase synthesis of 1,5-disubstituted 1,2,3-triazole was developed. Nineteen 1,5-disubstituted1,2,3-triazoles were successfully obtained by merely washing the ionic liquid phase with ether, thus avoiding the need for intermediate purification.
A New Method for the Synthesis of 1,5-Disubstituted 1,2,3-Triazoles via Triazolium Salt Intermediates
作者:Shinichi Koguchi、Kazuki Izawa
DOI:10.1055/s-0032-1316806
日期:——
the birth of my son. His name is Shigemasa. Abstract A new transition metal free procedure for the synthesis of 1,5-disubstituted1,2,3-triazoles, which proceeds via a triazolium salt intermediate is described. A new transition metal free procedure for the synthesis of 1,5-disubstituted1,2,3-triazoles, which proceeds via a triazolium salt intermediate is described.