A novel route to substituted 4-methylene-4,5-dihydroisoxazoles mediated by hafnium(iv) chloride
Abstract
Heating alkyl vinyl ketones and N-tert-butylarylmethylideneamine N-oxides in the presence of HfCl4 results in the formation of 4-methylene-4,5-dihydroisoxazoles in good yield.