Abstract
AbstractThe synthesis of 1‐alkyl‐2‐bromo‐3,5‐dinitro‐benzenes, where the alkyl group is represented by CH3, C2H5, (CH3)2CH and (CH3)3C— is described. The general scheme which was chosen is the following: the various o‐alkyl‐phenols were dinitrated, either after sulfonation (case of o‐cresol and o‐tert‐butyl phenol), or directly, in acetic acid. The 2‐alkyl‐4,6‐dinitro‐phenols obtained were methylated, than treated with NH3. From the resulting 2‐alkyl‐4,6‐dinitro‐anilines, the 1‐alkyl‐2‐bromo‐3,5‐dinitro‐benzenes were prepared by a Sandmeyer reaction.
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