1-Azabicyclo[3,2,0]hept-3-ene-2,7-dione. A correction
Abstract
Beckmann rearrangement of 4-methoxy-o-benzoquinone O-phenylsulphonyloxime (2) gives 3-methoxy-4-cyanomethylbut-2-enolide (6) and not 1-azabicyclo[3,2,0]hept-3-ene-2,7-dione (1) as reported.