Zobrazeno 1 - 1
of 1
pro vyhledávání: '"Kouki Nagayama"'
Publikováno v:
HETEROCYCLES. 60:1461
I he chlorination of 1,2-dihydro-4-hydroxy-6-methyl-2-oxo-3-pyridinecarbonitrile (2) with a mixture of POCl 3 and PCl 5 in CHCl 3 gave 4-chloro-1,2-dihydro-6-methyl-2-oxo-3-pyridinecarbonitrile (3) in good yield. Compound (3) reacted with alkyl- and