hydrogen bromide in acetic acid bromomethylation; 5 h; Irradiation;

phosphorus tribromide

1: 2,5-dimethyl-1-bromomethylbenzene; Ni(II) complex of the Schiff base of glycine with (S)-o-[N-(N-benzylprolyl)amino]benzophenone With sodium hydroxide in N,N-dimethyl-formamide T=20°C; 2: With hydrogenchloride in methanol T=70°C; 3: di-tert-butyl dicarbonate With sodium carbonate in 1,4-dioxane; water T=20°C;

Yield given. Multistep reaction;