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

Participants

Reaction Steps

Following the proceedure described in Example 1, 3.0 grams of 10H-dibenz[b,f][1,4]oxazepin-11-one and 3.7 grams of 2-propyl bromide were reacted in the presence of 0.82 grams of a 50% dispersion of sodium hydride in mineral oil and 50 ml of dry dimethylformamide. The product was purified on the silica gel column (ethyl acetate/hexane, 1:4). The resulting oil was dissolved in petroleum ether which on standing gave 1.33 grams (30% of theory) of 10-isopropyl-10H-dibenz[b,f][1,4]oxazepin-11-one as colorless needles, m.p. 102°-103° C.

Provenance & Evidence