Benzyl Alcohol → HCID 18619208, compound

Participants

Reaction Conditions

Reaction Steps

To a mixture of 24 g of sodium hydride and 500 ml of tetrahydrofuran, 65 g of benzyl alcohol was added dropwise at room temperature. The mixture was stirred until the evolution of hydrogen stopped, cooled to −50° C., then, 100 g of 3,4-dichloro-1,2,5-thiadiazole was added to the mixture. The mixture was stirred over night at room temperature, and for 3 hours at reflux temperature. The mixture was concentrated, then poured into dilute hydrochloric acid, extracted with t-butyl methyl ether. The organic layer was washed with water, then, saturated saline, dried over anhydrous magnesium sulfate, and concentrated. The residue was subjected to silica gel column chromatography to obtain 33 g of 4-benzyloxy-3-chloro-1,2,5-thiadiazole (purity: 72%).

Provenance & Evidence