Microwave-assisted benzyne-click chemistry: preparation of 1H-benzo[d][1,2,3]triazoles
作者:Haribabu Ankati、Ed Biehl
DOI:10.1016/j.tetlet.2009.06.004
日期:2009.8
[3+2] cycloadditions of various azides to benzyne, 3-methoxybenzyne, and 4,5-difluorobenzyne. In the three-component reaction, the aryne is generated, in the presence of an azide prepared in situ, by the reaction of an o-(trimethylsilylaryl) triflate with either CsF or KF/18-Crown-6. However, in the two-component reactions, a freshly prepared azide is added to the reaction vessel prior to aryne generation