CAS 3771-13-9: Benzene, 2-(bromomethyl)-1-chloro-4-methoxy-

2-Chloro-5-methoxybenzyl bromide is a cyclization agent that is used in the synthesis of tetracyclines, polyphosphoric acid, and tetralones. It is typically used as a catalyst for cyclization reactions involving aromatic rings. This agent reacts with phosphorus oxychloride to produce polyphosphoric acid. Polyphosphoric acid can be used to synthesize tetracyclines and tetralones. 2-Chloro-5-methoxybenzyl bromide also acts as an oxidizing agent that converts primary alcohols into carboxylic acids and secondary alcohols into ketones or aldehydes.

2-Chloro-5-methoxybenzyl bromide