Procédé de préparation d'acétals du formyl-2 imidazole

• Main Authors: SCHOUTEETEN ALAIN, CHRISTIDIS YANI
• Format: Patent
• Language: French
• Published: 21.06.1996
• Edition: 6
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

2-Formyl imidazolyl acetals of formula (I) are prepd. by reacting an aq. mixt. of glyoxal and an ethanal of formula OHC-CH(OR1)(OR2) (III) with ammonia. R1, R2 = 1-4C alkyl, or R1+R2 = gp. of formula -CHR3-(CR4R5)n-CHR6- (II); R3-R6 = H, or 1-4C alkyl; n = 0 or 1;