Resolution of p-hydroxyphenyl-2-alkoxypropionic acids

Details Resolution of p-hydroxyphenyl-2-alkoxypropionic acids Resolution of p-hydroxyphenyl-2-alkoxypropionic acids

2005-07-06

2008-09-23

Puttlitz, Karl J (Department: 1621)

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

Organic compounds

Carboxylic acids and salts thereof

C562S465000, C562S470000

Reexamination Certificate

active

07427691

ABSTRACT:
The present invention is aimed at a process for the preparation of enantiomerically enriched compounds of general formula (I). These are obtained by classical resolution of the corresponding acid using a chiral amino base in organic solvents.

REFERENCES:
patent: 3234268 (1966-02-01), Merica et al.
patent: 6559335 (2003-05-01), Kumar et al.
patent: 7002037 (2006-02-01), Andersson et al.
patent: 01 40159 (2001-06-01), None
Kolarvic et al., Tetrahedron Letters (2001), 42(13), 2579-2582.

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