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…