WHILE nitrous acid (we include in this term all material that with water gives nitrous acid) is a negative catalyst in aromatic nitration generally, it has often been found to be a positive catalyst ...

2-NITRO-PHENOL is usually prepared from the mixture of mono-nitro-phenols obtained by nitration of phenol. According to the classical methods 1 the isomers can be separated by steam distillation, as ...

Several phenol and aniline compounds were nitrated to generate ortho- and para-nitration products with moderate to high total turnover numbers. "This represents the first example of direct aromatic ...