01181nas a2200157   4500008004100000022001400041245013600055210006900191260000900260300001400269490000700283520057800290100002100868700000500889856012900894       2021                        eng d  a1523-706000aInterrupting the [Au]-catalyzed nitroalkyne cycloisomerization: trapping the putative alpha-oxo gold carbene with benzo[c]isoxazole0 aInterrupting the Aucatalyzed nitroalkyne cycloisomerization trap  cAPR   a2632-26370 v233 a<p>The [Au]-catalyzed nitroalkyne cycloisomerization of 2-alkynylnitrobenzenes leading to anthranils has been interrupted by possible trapping of the postulated intermediate alpha-oxo gold carbene with an external nucleophile such as benzo[c]isoxazole (anthranil). At the outset, this provides a simple synthesis of highly functionalized 3-acyl-(2-formylphenyl)-2H-indazoles with the sequential C-O, C-N, and N-N bond formations. This provides indirect support for the existence of alpha-oxo gold carbenes in the [Au]-catalyzed internal redox processes of nitroalkynes.</p>1 aDhote, Pawan, S.1 a  uhttps://library.ncl.res.in/content/interrupting-au-catalyzed-nitroalkyne-cycloisomerization-trapping-putative-alpha-oxo-gold