A facile and regioselective synthesis of 1,4-disubstituted 1,2,3-triazoles using click chemistry
作者:Dalip Kumar、V. Buchi Reddy、Rajender S. Varma
DOI:10.1016/j.tetlet.2009.02.107
日期:2009.5
The reaction of α-tosyloxy ketones, sodium azide, and terminal alkynes in presence of copper(I) in aqueous polyethylene glycol afforded regioselectively 1,4-disubstituted 1,2,3-triazoles in good yield at ambient temperature. The one-pot exclusive formation of 1,4-disubstituted 1,2,3-triazoles involves in situ formation of α-azido ketones, followed by cycloaddition reaction with terminal alkyne. The
Acid-Mediated Denitrogenation/Rearrangement/Coupling of Benzyl Azides with Triazolyl-Substituted Cycloalkanones
作者:Ying Fu、Zhengyin Du、Yang Che、Rui Wang
DOI:10.1055/s-0037-1610747
日期:2020.3
Organic molecules containing α-triazolyl or β-amino cyclic ketone fragments have been individually proven to show good bioactivities and to be useful in asymmetric and pharmaceutical syntheses. A triflic acid-promoted simple and efficient method for the synthesis of unsymmetrical α-triazolyl-α′-(aminomethyl)cycloalkanones from benzyl azides and α-triazolylcycloalkanones has been developed. A series