Comments on ‘Unusual oxidative rearrangement of 1,5-diazadecalin’

Oxidation of cis or trans 1,5-diazadecalin with (PhIO)n yields 2-pyrrolidinone and not 1,6-diaza-2,7-cyclodecadione, as reported. This is shown by a comparison of the NMR data of the reaction product with those of 2-pyrrolidinone and 1,6-diaza-2,7-cyclodecadione.