O-Phenylenediamine → HCID 178432762, compound

Participants

Reaction Steps

1,2-Phenylenediamine (81 mg) was added to an EtOH (20 mL) solution of N-[(3-{2-[(2,4-dimethyl-1,3-thiazol-5-yl)carbonyl]-3,3-bis(methylthio)acryloyl}phenyl)sulfonyl]-2-hydroxy-2-methylpropanimidamide (370 mg), followed by heating under reflux for 13 hours. After cooling, the reaction mixture was concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (chloroform/methanol=50/1), and recrystallized from ethyl acetate/n-hexane to obtain N-({3-[2-(1,3-dihydro-2H-benzimidazol-2-ylidene)-3-(2,4-dimethyl-1,3-thiazol-5-yl)-3-oxopropanoyl]phenyl}sulfonyl)-2-hydroxy-2-methylpropanimidamide (310 mg).

Provenance & Evidence