Unusual dirhodium tetraacetate catalyzed intramolecular cyclization of isoquinoline diazoamides

Article abstract of DOI:10.1016/S0040-4039(99)01738-4

The dirhodium(II) tetraacetate catalyzed decomposition of an isoquinoline diazoamide leads to the unexpected formation of a 1,3-oxazin-4-one ring which is consistent with a rare example of an intramolecular metal-carbene hydride-abstraction mechanism.