Triethylamine → N*3*-(3,5-Dichloro-phenyl)-[1,2,4]oxadiazole-3,5-diamine

Participants

Reaction Conditions

Reaction Steps

In a 5 mL microwave vial, (Z)-methyl N′-cyano-N-(3,5-dichlorophenyl)carbamimidothioate (156 mg, 0.6 mmol, Eq: 1.00), hydroxylamine hydrochloride (347 mg, 5 mmol, Eq: 8.33) and triethylamine (506 mg, 697 μl, 5 mmol, Eq: 8.33) were combined with DMF (6 ml) to give a white suspension. The vial capped and stirred in a 50° C. oil bath for 3.5 hours. The reaction was concentrated in vacuo and the crude material was purified by preparative TLC (silica gel, 1.0 mm, 9:1 DCM/MeOH) to give product, was recrystallized from EtOH then dried in vacuo (80° C., 2 torr, overnight) to give 15 mg (10%) of desired product as a white solid.

Provenance & Evidence