HRID564074
反应详情
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5-Benzyloxy-2-[2-(4-bromomethyl-phenyl)-2-oxo-ethyl]-2H-pyridazin-3-one is prepared following preparation 15c from 9.40 g (26.8 mmol) 5-benzyloxy-2-[2-(4-hydroxymethyl-phenyl)-2-oxo-ethyl]-2H-pyridazin-3-one (preparation 17a) and 2.52 mL (26.8 mmol) phosphorus tribromide.