Ethyl chloroformate → HCID 13469503, compound

Participants

Reaction Steps

2.8 g of Compound [II] was dissolved in 30 ml of dioxane, and 2.2 g of ethyl chloroformate was added to the solution. The mixture was then allowed to react for 5 hours under refluxing. After completion of the reaction, the solvent was distilled off, and hexane and a potassium carbonate aqueous solution were added to the residue to form crystals. The crystals were collected by filtration and washed with water and hexane to obtain 1.1 g of ethyl N-(5-t-butyl-3-pyrazolyl)carbamate.

Provenance & Evidence