Allyl bromide → HCID 178460728, compound

Participants

Reaction Steps

To a slurry of 3-t-butylpyrazole-5-thiol (10 g) in dry dimethoxyethane (100 ml) was added portionwise, with stirring, sodium hydride (1.6 g). Stirring at room temperature was continued for a few minutes, and then allyl bromide (7.8 g) was added. The reaction mixture was stirred for 2 hours, filtered, and evaporated. The residue was dissolved in ether and washed with water, and the ether layer separated, dried, and evaporated to give 3-t-butyl-5-(allylthio)pyrazole, as a pale brown oil (11.0 g), 88% yield.

Provenance & Evidence