The Synhesis of Cyclohexane-1,3-diones Bearing an Isoxazoline or a Dihydro-1,2-oxazine Ring at C2

Article abstract of DOI:10.1071/CH9900427

Dimedone (6) was C-acylated with 4-(1'-methylethylideneaminooxy)butanoic acid (7), and the product (8) was hydrolysed to give 2-(5',6'-dihydro-4'H-1',2'-oxazin-3'-yl)-5,5-dimethylcyclohexane-1,3-dione (3).The 2-(4',5'-dihydroisoxazol-3'-yl) 1,3-dione (4)