Dimethylformamide → HCID 19981425, compound

Participants

Reaction Steps

5-Amino-1-benzyltetrazole (3.25 g, 0.0186 mol) was suspended in 15 mL of 1,2-dichloroethane after which 2,6-dimethylphenylisocyanate (3.5 mL, 0.025 mol) was added. The mixture was refluxed for 6 hours, 10 mL of dimethylformamide was added, and the mixture was refluxed for an additional 6 hours. The reaction mixture was diluted twice with 50 mL water and the water decanted from the precipitate then concentrated in vacuo adding ethanol as the azeotropic solvent. The precipitate was washed with ether, dried in a vacuum oven, washed with hot water and hot ethyl acetate, extracted with hot 9:1 methanol/methylene chloride, and concentrated to give the title compound, m.p. 220-230° C. dec.

Provenance & Evidence