Process for the preparation of 5-arylidene and...

Details Process for the preparation of 5-arylidene and... Process for the preparation of 5-arylidene and...

C - Chemistry, Metallurgy

07

D

260/315.05, 260/

C07D 233/76 (2006.01) C07D 233/96 (2006.01) C07D 401/04 (2006.01) C07D 401/06 (2006.01) C07D 401/10 (2006.01) C07D 403/10 (2006.01) C07D 403/12 (2006.01) C07D 405/12 (2006.01) C07D 409/06 (2006.01) C07D 413/12 (2006.01) C07F 9/6506 (2006.01)

Patent

CA 1323629

Abstract of the Disclosure There is disclosed a process for the preparation of C-5-ethylenically unsaturated hydantoin derivatives which are useful as intermediates in the synthesis of 1,3-dihydro- 2H-imidazo[4,5-b]quinolin-2-ones. The process comprises coupling an aliphatic or aromatic aldehyde or ketone or an alpha-dicarbonyl compound with a dialkyl 5-phosphonate hydantoin.

548024

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