Process for preparing oximidazoles

Details Process for preparing oximidazoles Process for preparing oximidazoles

1998-06-26

1999-06-08

Higel, Floyd D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

5483164, 5483255, C07D23332, C07D23502

Patent

active

059105950

ABSTRACT:
A process is disclosed for the preparation of an imidazolone and the pharmaceutically acceptable salts thereof having the formula ##STR1## wherein R1 and R2 are the same or different and are C1 to C6 alkyl, C2 to C6 alkenyl, C1 to C6 cycloalkyl, aryl either unsubstituted or substituted with at least one substituent selected from the group consisting of C1 to C6 alkyl, C1 to C6 alkoxy and halo or heteroaryl either unsubstituted or substituted with C1 to C6 alkyl or halo;

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patent: 5698704 (1997-12-01), Jackson
Oniciu et al, Rev. Roumaine de Chem. "Synthesis of Substituted 2-Oxazolin-4-ones and 1-Imidazolin-5-ones", 37(3) 407-409 (1992).
Poupaert et al, Synthesis, "N-Acyl-.varies.-amininitriles In The Pinner Reaction", 622-624 (1972).
Li et al, Tetrahedron, "Asymetric Synthesis And Absolute Stereochemistry Of 4,4-Bis(trifluoromethyl)-imidazoline etc." 53(15), 5359-5372 (1997).
Li et al, J. Org. Chem., An Unusual Trifuoromethyl Elimination Reaction From The 4,4-Bis(trifluoromethyl)-5-hydroxyimidazoline Ring System, 62, 2550-2554 (1997).

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