Process for the preparation of tolterodine and intermediates...

Details Process for the preparation of tolterodine and intermediates... Process for the preparation of tolterodine and intermediates...

2006-10-10

2006-10-10

Dentz, Bernard (Department: 1625)

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C564S316000

Reexamination Certificate

active

07119212

ABSTRACT:
A process for the preparation of 6-methyl-4-(R)-phenyl-chroman-2-one and 6-methyl-4-(S)-phenyl-chroman-2-one, intermediates for the synthesis of tolterodine and its (S) enantiomer, by reaction of 6-methyl-coumarin with phenylboronic acids, esters and derivatives thereof, in the presence of chiral catalysts.

REFERENCES:
patent: 6310248 (2001-10-01), Andersson et al.
Defieber et al, Organic Letters, 6(21), pp. 3873-3876, Oct. 14, 2004.

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