Process for the preparation of pyrrolidone derivatives

Details Process for the preparation of pyrrolidone derivatives Process for the preparation of pyrrolidone derivatives

1985-03-29

1986-12-16

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

564201, C07D207273

Patent

active

046297979

ABSTRACT:
A process for preparing compounds (1) ##STR1## where Y is NR.sup.1 R.sup.2 or OR, R.sup.1 and R.sup.2 are hydrogen or C.sub.1-3 alkyl, and R is C.sub.1-3 alkyl, which comprises protecting the hydroxy group of a compound (2) ##STR2## cyclising the product under basic conditions and removing the protecting group.

REFERENCES:
patent: 4124594 (1978-11-01), Monguzzi et al.
patent: 4173569 (1979-11-01), Banfi et al.
Tabei et al, Heterocycles 14:1779-1784(1980).
Pifferi et al, Il Farmaco (Ed. Sc.) 32:602-613(1977).

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