Triethylamine → HCID 13583686, compound

Participants

Reaction Steps

4-Phenylazetidin-2-one (10.4 gm, 71.0 mmole) (Graf, Chem. Ber, 111 (1963); Durst et al. J. Org. Chem., 35, 2043 (1970)) was dissolved in DMF (200 ml) and was treated with tert.-butyldimethylsilyl chloride (12.8 gm, 85 mmol) and triethylamine (11.8 ml, 85 mmol). The mixture was stirred at room temperature for 16 hrs. and taken up in either (500 ml). The ethereal solution was washed with 1N hydrochloric acid (1×100 ml), water (2×50 ml) and brine (1×50 ml). After the solution was dried (anhyd. magnesium sulfate) and evaporated, the residue was flash chromatographed on SiO2 -gel column. Elution with 15% ethyl acetate in hexane afforded 4-phenyl-1-(tert.-butyldimethylsilyl)azetidin-2-one (18.4 gm, 99%) as an oil which solidified on standing.

Provenance & Evidence