Process and intermediates for preparing nicotinamide...

Details Process and intermediates for preparing nicotinamide... Process and intermediates for preparing nicotinamide...

C - Chemistry, Metallurgy

07

C

C07C 215/30 (2006.01) C07C 209/00 (2006.01) C07C 213/02 (2006.01) C07C 215/08 (2006.01) C07C 215/68 (2006.01) C07C 231/12 (2006.01) C07C 233/00 (2006.01) C07C 233/31 (2006.01) C07C 233/47 (2006.01) C07C 233/53 (2006.01) C07B 61/00 (2006.01) C07C 231/02 (2006.01)

Patent

CA 2286646

A process for preparing a compound of the formula Image comprising reacting a compound of the formula IV with a carbonate base in an alcohol solvent. The compound of the formula IV is prepared by reacting a compound of the formula III with a methyl grignard reagent in an inert solvent. The compound of formula III is prepared by reacting a compound of formula II with an acetic anhydride and and amine base in a chlorinated solvent. The compound of Formula II is prepared by reacting a compound of forumula I with an alcohol in acid media to form an ester group. The invention also includes novel compounds of the formula Image wherein R is (C1-C6)alkyl and Image

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