Abstract: Disclosed is a method of removing about 0.05 to about 20 mole % of a benzaldehyde or benzotrihalide from a mixture with a liquid compound that boils within about −10 to about ±5° C. of the boiling point of the benzaldehyde or benzotrihalide. To the mixture is added a benzotrihalide in an amount about stoichiometric to about 10 mole % in excess of stoichiometric, or, respectively, a benzaldehyde in an amount about stoichiometric with the amount of said benzotrihalide, where said benzaldehyde and said benzotrichloride react to form a benzalhalide and a benzoylhalide. The product mixture is distilled to isolate the products.

Abstract: Disclosed is a method of preparing brominated substituted anilines. A mixture in water is formed of a substituted aniline having the general formula ##STR1## where each R is independently selected from halogen, alkyl and haloalkyl from C.sub.1 to C.sub.12, aryl, alkaryl, and aralkyl from C.sub.6 to C.sub.12, R does not occupy all three 2, 4, and 6 positions, and n is 1 to 4. To the suspension is added about 1.0 to about 1.1 equivalents of bromine for each bromine atom to be substituted onto the aromatic ring of said substituted aniline. No acid is present during the reaction.