Sodium Azide → 2-Azido-6,7-dimethylnaphthalene-1,4-dione

Participants

Reaction Steps

An aqueous solution of sodium azide (4.4 g; 0.068 mole) was added at once to a refluxing suspension of 2-bromo-6,7-dimethyl naphtho-1,4-quinone (13.8 g; 0.052 mole) in ethanol (130 ml) and the resulting red solution refluxed for a further 2 mins. After cooling in ice the precipitated azide was separated, washed well with water and recrystallised from ethanol as an orange-red solid, m.p. 116°-119° C. (d).

Provenance & Evidence