Sodium Azide → 5-(2-Chloro-4-trifluoromethylphenoxy)-2-nitrophenyl azide

Participants

Reaction Steps

A mixture of 4-(2-chloro-4-trifluoromethylphenoxy)-1,2-dinitrobenzene (2.0 g, 5.5 mmol) and sodium azide (1.1 g, 16.6 mmol) in acetone (25 ml) is heated under reflux for 3.5 hours. The reaction is then cooled and filtered, and the filtrate is stripped. The residue is taken up in chloroform, washed with water (2X) and with brine, dried, stripped and purified by preparative thin layer chromatography (prep. TLC) (silica gel, eluting with 15% ethyl acetate/hexane) to give 5-(2-chloro-4-trifluoromethylphenoxy)-2-nitrophenyl azide.

Provenance & Evidence