Phosgene → HCID 44137272, compound

Participants

Reaction Conditions

Reaction Steps

3-(4-fluorophenyl)-1-(2-methyl-2-phenylhydrazinyl)hex-5-en-3-ol (14 mg, 0.04 mmol) and triethylamine (3 drops) was dissolved in toluene (1 mL). The solution was cooled to 0° C. and phosgene (3 drops, 20% toluene solution) was added. After 1 h, more phosgene was added (3 drops, 20% toluene solution) and the reaction was allowed to warm to rt overnight. The solvent was evaporated and the residue was redissolved in toluene. DBU (5 drops) was added and the solution heated to reflux for 4 h. The solvent was evaporated and the residue was purified by preparative HPLC to afford 6-allyl-6-(4-fluorophenyl)-3-(methyl(phenyl)amino)-1,3-oxazinan-2-one (8.8 mg). LC-MS Method 1 m/z=341 (M+1). 1H NMR (CDCl3) δ 7.43-7.37 (br m), 7.25-7.26 (m), 7.19-7.12 (m), 6.99 (t), 6.85 (m), 6.72-6.66 (m), 6.07 (d), 6.73 (m), 5.15-5.05 (m), 3.42 (m), 3.33 (m), 3.14 (s), 2.85 (s), 2.65-2.55 (m), 2.50-2.34 (m).

Provenance & Evidence