2,6-Dichloro-3-fluoroacetophenone → 5-(7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-4,4-dimethyl-2-(piperidin-4-yl)-2,4-dihydro-3H-pyrazol-3-one

Participants

Reaction Steps

Prepared analogous as described for the example B1 (Alternative 2) using methyl 3-(7-methoxy-2,2-dimethyl-2,3-dihydro-1-benzofuran-5-yl)-2,2-dimethyl-3-oxopropanoate (compound D12) and piperidin-4-yl-hydrazine dihydrochloride as starting compounds resulting in the title compound. (compound B12)

Provenance & Evidence