Hydroxyzine is synthesized by the alkylation of 1-(4-chlorobenzhydryl)piperazine with 2-(2-chloroethoxy)ethanol:H. Morren, (1959); H. Morren, (1954); H. Morren, (1954); H. Morren, (1954); H. Morren, (1954); H. Morren, (1954).
