Process for preparing esters of 2-(6'methoxy-2'naphtyl)-propioni

Details Process for preparing esters of 2-(6'methoxy-2'naphtyl)-propioni Process for preparing esters of 2-(6'methoxy-2'naphtyl)-propioni

1981-02-20

1983-11-08

Love, Ethel G.

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

Organic compounds

Carboxylic acid esters

C07C 6976

Patent

active

044144059

ABSTRACT:
Process for preparing esters of 2-(6'-methoxy-2'-naphtyl)-propionic acid via rearrangement of new ketals of 2-halo-1-(6'-methoxy-2'-naphtyl)-propan-1-one in the presence of a Lewis acid.
The esters thus obtained are useful as intermediate products for preparing Naproxen.
The process involves the preparation of the following new compounds:

REFERENCES:
patent: 3607907 (1971-09-01), Eck
patent: 4107439 (1978-08-01), Walker et al.
patent: 4135051 (1979-01-01), Walker
patent: 4142054 (1979-02-01), Amin
McKillop et al., Journ. Amer. Chem. Soc. 95(10), pp. 3340-3343 (1973).

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