New process for the preparation of phenylimidazolidine...

C - Chemistry – Metallurgy – 07 – D

Patent

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Details

C07D 233/72 (2006.01) C07D 233/84 (2006.01) C07D 233/86 (2006.01) C07D 401/00 (2006.01) C07D 403/00 (2006.01) C07D 405/00 (2006.01) C07D 409/00 (2006.01) C07D 413/00 (2006.01) C07D 417/00 (2006.01) C07D 491/10 (2006.01) C07D 491/107 (2006.01) C07D 495/10 (2006.01)

Patent

CA 2235335

The invention relates to a process for the preparation of products having formula (I) wherein R¿1? and R¿2? represent particularly hydrogen, cyano, halogen or amino, R¿3? is particularly hydrogen or hydroxyl alkyl, R¿4? and R¿5? are particularly optionally substituted alkyl, X and Y are oxygen or sulfur, characterized in that a product having formula (A) is prepared; in formula (A), W is a halogen atom or a derivative of hydantoin which is subjected to various reactions in order to obtain the products of formula (I), all isomers and salts thereof.

L'invention a pour objet un procédé de préparation des produits de formule (I), dans laquelle R1 et R2 représentent notamment hydrogène, cyano, halogène ou amino; R3 représente notamment hydrogène ou hydroxyle alkyle; R4 et R5 représentent notamment alkyle éventuellement substitué; X et Y représentent oxygène ou soufre; caractérisé en ce qu'on prépare un produit de formule (A), dans laquelle W représente un atome d'halogène ou un dérivé de l'hydantoïne, que l'on soumet à diverses réactions pour obtenir les produits de formule (I), tous leurs isomères et leurs sels.

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