Sodium Azide → 3-(4-Chlorobenzoyl)-benzyl azide

Participants

Reaction Steps

A mixture of 3-(4-chlorobenzoyl)benzyl bromide (4.2 g, 13.6 mmol) and sodium azide (1.32 g, 20.3 mmol) in ethanol (40 ml) was refluxed for 5 hours, cooled to ambient temperature, and kept 16 hours. The mixture was filtered and the solids were washed twice with ethanol. The combined filtrate and washes were evaporated to dryness under vacuum and the residue was treated with diethyl ether and filtered. The filtrate was evaporated to dryness under vacuum and dried to provide 3.7 g (100%) of 3-(4-chlorobenzoyl)-benzyl azide, m.p. 43°-45° C.

Provenance & Evidence