Y He, G Qiu - Organic & biomolecular chemistry, 2017 - pubmed.ncbi.nlm.nih.gov
ZnBr 2-Mediated oxidative spiro-bromocyclization of N-arylpropiolamide has been
described herein for the synthesis of 3-bromo-1-azaspiro [4.5] deca-3, 6, 9-triene-2, 8-dione …