Diisopropylethylamine → HCID 58109191, compound

Participants

Reaction Steps

A stirred solution of crude 4-amino-2-(3-chlorophenyl)butan-2-ol (550 mg) and i-Pr2NEt (1 mL, 5.5 mmol) in CH2Cl2 was cooled in an ice bath and solid triphosgene (286 mg, 0.96 mmol) was added. The ice bath was allowed to melt and the mixture was stirred overnight at rt. The mixture was diluted with ether (150 mL), washed with 5% aq HCl (50 mL) and satd aq NaHCO3 (50 mL) and dried over MgSO4. Removal of the solvent left a brown oil (590 mg) which was purified by chromatography on a 12-g silica cartridge eluted with a 0-100% EtOAc in hexanes gradient to afford 6-(3-chlorophenyl)-6-methyl-1,3-oxazinan-2-one (57 mg).

Provenance & Evidence