Benzene, 1-(chloromethyl)-2-fluoro- → HCID 14013089, compound

Participants

Reaction Conditions

Reaction Steps

To a stirred mixture of 3.5 parts of 2-[[1-[2-(4-methoxyphenyl)ethyl]-4-piperidinyl]methyl]-1H-benzimidazole and 18 parts of N,N-dimethylacetamide were added portionwise 0.5 parts of a sodium hydride dispersion 59.4% at room temperature. After stirring for 35 minutes at room temperature and for 10 minutes at 60° C., a solution of 1.7 parts of 1-(chloromethyl)-2-fluorobenzene in 9 parts of N,N-dimethylacetamide was added dropwise at 60° C. After stirring for 10 minutes, the reaction mixture was cooled and poured into 150 parts of water. The product was extracted twice with 4-methyl-2-pentanone. The combined extracts were washed with water, dried, filtered and evaporated. The residue was crystallized from a mixture of 2,2'-oxybispropane and 2-propanone. The product was filtered off and dried, yielding 3.0 parts (65.5%) of 1-[(2-fluorophenyl)methyl]-2-[[1-[2-(4-methoxyphenyl)ethyl]-4-piperidinyl]-methyl]-1H-benzimidazole; mp. 109.3° C. (515).

Provenance & Evidence