Tetrahydrofuran → HCID 86684882, compound

Participants

Reaction Steps

Under cooling in an ice bath, potassium tert-butoxide (217 mg) was added to a tetrahydrofuran (2.8 mL) solution of 4-chlorobenzyl alcohol (217 mg), and the obtained solution was then stirred for 20 minutes. Under cooling in an ice bath, 5-chloro-1-methyl-1H-pyrazol-4-carbaldehyde (200 mg) was added to the reaction solution, and the obtained solution was then stirred for 3 hours. Thereafter, water was added to the reaction solution, and the obtained mixture was then extracted with ethyl acetate. The organic layer was washed with a saturated saline, and was then dried over anhydrous magnesium sulfate, followed by vacuum concentration. The residue was purified by column chromatography (silica gel cartridge, hexane:ethyl acetate=80:20 to 60:40), so as to obtain the title compound (127 mg) in the form of a colorless oily substance.

Provenance & Evidence