Water → HCID 53666165, compound

Participants

Reaction Steps

1.44 g (0.06 mol) of sodium hydride (30% strength in paraffin oil) are added to a solution of 14.94 g (0.045 mol) of 3,3-dimethyl-2-[4-(1-hydroximinoethyl)-phenoxymethyl]-1-(1,2,4-triazol-1-yl)-2-butanol (Example 2) in 120 ml of absolute dimethylsulphoxide. The reaction mixture is stirred at room temperature for about 1 hour, until a clear solution has formed. 3.33 ml (0.06 mol) of 2,4-dichlorobenzyl chloride are then added and the reaction mixture is subsequently stirred at room temperature for 1.5 hours. Thereafter, water and glacial acetic acid are carefully added and the mixture is concentrated. The residue is taken up in ethyl acetate and the mixture is washed several times with dilute sodium chloride solution, dried over sodium sulphate and concentrated. The residue is chromatographed over a silica gel column (methylene chloride/ethyl acetate=4:1) and the product is recrystallized from acetonitrile. 16.2 g (73% of theory) of 2-{4-[1-(2,4-dichlorobenzylimino)-ethyl]-phenoxymethyl} -3,3-dimethyl-1-(1,2,4-triazol-1-yl)-2-butanol of melting point 101° C. are obtained.

Provenance & Evidence