Sodium borohydride → HCID 54216095, compound

Participants

Reaction Steps

162 g (0.5 mol) of 1-chloro-5-(4-chlorophenyl)-2,2-dimethyl-4-(1,2,4-triazol-1-yl)-4-penten-3-one (prepared as described in Example III-2) were dissolved in 500 ml of isopropanol, and 9.5 g (0.25 mol) of sodium borohydride were added in portions to the solution, while stirring. The reaction mixture was stirred for 10 hours at room temperature, and was then concentrated in vacuo. The residue was taken up in toluene, and the solution was washed with dilute acetic acid and then with water, and was dried over sodium sulphate and concentrated in vacuo. 156.6 g (96% of theory) of 1-chloro-5-(4-chlorophenyl)-2,2-dimethyl-4-(1,2,4-triazol-1-yl)-4-penten-3-ol of refractive index nD20 =1.5579 were obtained as an E/Z isomer mixture.

Provenance & Evidence