PROCESS FOR THE PREPARATION OF 5-FORMYLPHTHALIDE

Application 130/KOLNP/2004 published 2006-04-07, filed 2004-02-04
There is described a process for the preparation of 5-formylphthalide by hydrogenation of a halide of 5-carboxyphthalide, dissolved in a dipolar aprotic solvent, in the presence of a catalyst. Furthermore, the use of 5-formylphthalide in the preparation of citalopram is described. (FIG. NIL)

Applicant

INFOSINT SA
Via Cantonale 658A, CH-7745 Poschiavo, Cantoni dei Grigioni, SWITZERLAND.

Inventor

COTTICELLI, Giovanni DALL'ASTA, Leone

International Info

Classification: C07D 307/80
Publication Number: WO 03/011847
Application Date: 2002-07-29

Priority Information

01830518.5 EP 2001-08-02