1: tert-butyl hypochlorite 2: 86 percent / lithium diisopropyl amide / tetrahydrofuran / -100 °C 3: 1percent NaOH / propan-2-ol View Scheme

1: 2-chloromethyl-4,4-dimethyl-4,5-dihydro-1,3-oxazole With lithium diisopropyl amide Metallation; 2: cyclohexanone Epoxidation; Darzens reaction;