Acetone → HCID 178460885, compound

Participants

Reaction Steps

To the solution of 2-phenyl-4-propargyl-1,3,4-thiadiazolin-5-one (1.6 g, 7.4 mmole) in dry acetone (25 ml) under nitrogen with magnetic stirring was added catalytic amount of silver nitrate 0.1 g, 0.58 mmole), followed by N-iodosuccinimide (1.85 g, 8.15 mmole). The reaction mixture was stirred at room temperature for 20 hours. The solid was filtered off by suction-filtration through a Celite filter. The filtrate was diluted with water (200 ml) and extracted with ethyl acetate (2×100 ml). The organic layer was washed with water (2×50 ml), brine, and dried over sodium sulfate. The drying agent was filtered off and the filtrate was concentrated to give a residue. The residue was triturated with hexane and the product was collected by suction-filtration to give 1.75 g as a semicrystalline compound. m.p.=117°-119 C. Proton NMR spectum showed the desired compound.

Provenance & Evidence