2-Chlorobenzyl chloride → 4-carboxy-2-(2-chlorobenzyl)-6-(4-fluoro-3-methylphenyl)-2H-pyridazin-3-one

Participants

Reaction Steps

Following the procedure of Example 1(6), 6-(4-fluoro-3-methylphenyl)-4-methoxycarbonyl-2H-pyridazin-3-one and 2-chlorobenzyl chloride were reacted to yield a crude product. Without purification, the crude product was reacted further in accordance with the procedure of Example 1(7) to yield the title compound as pale yellow needles (76.4%).

Provenance & Evidence