Displacement of an Aromatic Nitro Group using Phenoxides ... PG Sammes," 0. Thetford, and M. Voyle Department of Synthetic and Isotope Chemistry, Smith Kline and French Research Limited, The frythe, Welwyn, Hertfordshire AL6 9AR, UK ... 1,4-Dinitrobenzene undergoes nucleophilic substitution with sodium phenoxide and several hindered 2,6-substituted phenoxides to afford diphenyl ethers. ~ ~ SK&F L-94901 (1), a selective thyromimetic showing hypo- ...