Sodium hydride → HCID 86742800, compound

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using 1-(4-chloro-2-fluoro-5-hydroxyphenyl)-5-fluoro-2-methoxy-4-pentafluoroethyl-6(1H)-pyrimidinone and crotonoyl chloride with sodium hydride in dimethylformamide there is obtained {2-chloro-4-fluoro-5-[5-fluoro-2 -methoxy-6-oxo-4-pentafluoroethyl-1(6H) -pyrimidinyl]-phenyl} crotonate, 1H-NMR (CDCl3, 400 MHz): 7.42 ppm (d,1H), 7.28 ppm (m,1H), 7.20 ppm (d,1H), 6.08 ppm (m,1H), 3.98 (s,3H), 2.01 ppm (q,3H);

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