Synthesis and Diels–Alder Reactions of 3‐Acetyl‐2(3H)‐oxazolone: 6‐Amino‐3,4‐dimethyl‐cis‐3‐cyclohexen‐1‐ol

Synthesis and Diels–Alder reactions of 3-acetyl-2(3H)-oxazolone: 6-amino-3,4-dimethyl-cis-3-cyclohexen-1-ol intermediate: 326 g (3.75 mol) of 2-oxazolidinone intermediate: 258 g (2.0 mol) of 3-acetyl-2-oxazolidinone intermediate: 4-Acetyl-7,8-dimethyl-2-oxa-4-azabicyclo[4.3.0]non-7-en-3-one. product: 63.5 g (0.5 mol) of 3-acetyl-2(3H)-oxazolone product: 6-Amino-3,4-dimethyl-cis-3-cyclohexen-1-ol. Keywords: acylation; annulation, carbocyclic-[6]; cyclization, condensation; cyclization, cycloaddition; Diels-Alder reactions; elimination, dehydrohalogenation; halogenation, chlorination; hydrolysis, miscellaneous; photochemical reactions; autoclaves and pressure reactors, autoclave, for Diels-Alder reaction; photochemical apparatus, lamps, photochemical; pressure vessel; pressure vessel