New preparation process for phenylimidazolidine derivatives

A subject of the invention is a preparation process for the products of formula (I): in which R1 and R2 represent in particular hydrogen, cyano, halogen or amino, R3 represents in particular hydrogen or hydroxyl alkyl, R4 and R5 represent in particular optionally substituted alkyl, X and y represent...

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Bibliographic Details
Main Authors MACKIEWICZ, PHILIPPE, GUILMARD, DANIEL, BOUCHET, RAPHAEL, DELTHIL, MICHEL
Format Patent
LanguageEnglish
Published 11.09.2000
Edition7
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:A subject of the invention is a preparation process for the products of formula (I): in which R1 and R2 represent in particular hydrogen, cyano, halogen or amino, R3 represents in particular hydrogen or hydroxyl alkyl, R4 and R5 represent in particular optionally substituted alkyl, X and y represent oxygen or sulphur, characterized in that a product of formula (A): is prepared in which W represents a halogen atom or a hydan-toin derivative, which is subjected to various reactions in order to obtain the products of formula (I), all their isomers and their salts.
Bibliography:Application Number: TW199685113495