D]furan_Kain Industrial Additive

Background and Overview 3-Bromodibenzo[B,D]furan is a chemical intermediate. Preparation[1] Synthesis of 3-nitrodibenzofuran: Add 150ml trifluoroacetic acid to the reaction bottle, then add dibenzofuran (14.2g, 82mmol), stir vigorously at room temperature to dissolve it, cool it in ice-water bath, and add 70% HNO3 (9.1g, 101mmol) to 50ml Trifluoroacetic acid, slowly added to the reaction bottle, stirred…