Process for the preparation of 5-formylphthalide

Details Process for the preparation of 5-formylphthalide Process for the preparation of 5-formylphthalide

2005-05-03

2005-05-03

Solola, Taofiq (Department: 1626)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

Reexamination Certificate

active

06888010

ABSTRACT:
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.

REFERENCES:
patent: 0248133 (2002-06-01), None

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