Efficient synthesis of [1,2,3]triazolo[5,1-c][1,4]benzoxazines through palladium–copper catalysis
摘要:
A wide variety of [1,2,3]triazolo[5,1-c][1,4]benzoxazines were synthesized through palladium-copper catalyzed reactions of 1-azido-2-(prop-2-ynyloxy)benzene with aryl/vinyl iodides. A plausible reaction mechanism has also been proposed. (C) 2009 Elsevier Ltd. All rights reserved.
An approach toward the syntheses of triazolo benzoxazines, triazolo quinoxalines, triazolo benzodiazepines, triazolo benzoxazepines, and triazolo benzothiazines via a simple and convenient protocol using basic alumina as solid support
作者:Nivedita Chatterjee、Swarbhanu Sarkar、Rammyani Pal、Asish Kumar Sen
DOI:10.1016/j.tetlet.2014.02.080
日期:2014.4
A microwave assisted green protocol for the syntheses of triazole fused benzoxazines, benzoxazepines, quinoxalines, and benzothiazines was investigated using basic alumina as solid support. The one-pot reaction was carried out using Cu(phen)(PPh3)Br as a catalyst. The protocol did not require the use of any additional ligands, base or the use of expensive and toxic palladiums. (C) 2014 Elsevier Ltd. All rights reserved.
Efficient synthesis of [1,2,3]triazolo[5,1-c][1,4]benzoxazines through palladium–copper catalysis
A wide variety of [1,2,3]triazolo[5,1-c][1,4]benzoxazines were synthesized through palladium-copper catalyzed reactions of 1-azido-2-(prop-2-ynyloxy)benzene with aryl/vinyl iodides. A plausible reaction mechanism has also been proposed. (C) 2009 Elsevier Ltd. All rights reserved.
Intramolecular 1,3-dipolar cycloadditions of aryl azides bearing alkenyl, alkynyl, and nitrile groups