C - Chemistry – Metallurgy – 07 – D
Patent
C - Chemistry, Metallurgy
07
D
260/311
C07D 263/34 (2006.01)
Patent
CA 1122220
RAN 4223/58 ABSTRACT There is described a novel process for the manu- facture of 5-cyano-4-methyl-oxazole(1,3) which is an important intermediate in the manufacture of vitamin B6. According to this novel process 5-carbamoyl-4-methyl- -oxazole(1,3) is reacted with a lower alkanecarboxylic acid anhydride in the presence of a nickel or copper catalyst.
337708
Gowling Lafleur Henderson Llp
Hoffmann-La Roche Limited
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