Issue 12, 2005

TBAF-catalyzed [3 + 2]cycloaddition of TMSN3 to 3-nitrocoumarins under SFC: an effective green route to chromeno[3,4-d][1,2,3]triazol-4(3H)-ones

Abstract

Tetrabutylammonium fluoride (TBAF) has been shown to catalyze very efficiently the [3 + 2] cycloaddition of trimethylsilyl azide (TMSN3) to variously substituted 3-nitrocoumarins under SFC. A novel class of chromeno[3,4-d][1,2,3]triazol-4(3H)-ones has been prepared in high yields and following an environmentally-friendly protocol.

Graphical abstract: TBAF-catalyzed [3 + 2]cycloaddition of TMSN3 to 3-nitrocoumarins under SFC: an effective green route to chromeno[3,4-d][1,2,3]triazol-4(3H)-ones

Article information

Article type
Paper
Submitted
12 Jul 2005
Accepted
10 Oct 2005
First published
24 Oct 2005

Green Chem., 2005,7, 874-877

TBAF-catalyzed [3 + 2]cycloaddition of TMSN3 to 3-nitrocoumarins under SFC: an effective green route to chromeno[3,4-d][1,2,3]triazol-4(3H)-ones

G. D'Ambrosio, F. Fringuelli, F. Pizzo and L. Vaccaro, Green Chem., 2005, 7, 874 DOI: 10.1039/B509863G

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