Intermolecular Interception of α-Oxo Gold Carbenes of Nitroalkyne Cycloisomerization with 1,2-Benzo[<i>d</i>]isoxazole: Synthesis of Functionalized Quinazoline 1-Oxides
作者:Pawan S. Dhote、Kishor A. Pund、Chepuri V. Ramana
DOI:10.1021/acs.joc.1c01221
日期:2021.8.6
The known nitrogen-transfer reagent 1,2-benzo[d]isoxazole has been used to trap the postulated α-oxo gold carbene intermediate involved in the [Au]-catalyzed internal redox process of 2-alkynylnitrobenzenes. This process led us to develop a general convergent method for the synthesis of highlyfunctionalized quinazoline 1-oxides.