1-Bromopropane → 10-Propyl-dibenz(b,f)(1,4)oxazepin-11-(10H)-one

Participants

Reaction Steps

To a solution of 3.0 grams of 10H-dibenz[b,f][1,4]oxazepin-11-one in 50 ml of dry dimethylformamide was added 0.82 grams of a 50% dispersion of sodium hydride in mineral oil. The resulting mixture was stirred for one hour and 3.7 grams of 1-bromopropane was then added slowly. The reaction mixture was stirred for 3 hours and the excess sodium hydride decomposed by the addition of ice. After further dilution with water the product was extracted with ether, dried (anhydrous sodium sulfate) and concentrated. The resulting oil was purified on a silica gel column (ethyl acetate/hexane, 1:4) to provide 3.1 grams (87% of theory) of 10-propyl-10H-dibenz[b,f][1.4]oxazepin-11-one as a colorless oil.

Provenance & Evidence