Hydrochloric Acid → HCID 21935303, compound

Participants

Reaction Steps

A mixture of compound 125 (1.5 g; 0.0037 mol) and thiourea (0.31 g; 0.00408 mol) in DMSO (30 ml) was stirred at room temperature for 1 hour. NaOH 3N was added. The mixture was stirred for 15 minutes, acidified with HCl 3N and extracted with ethylacetate (EtOAc). The organic layer was separated, dried on magnesium sulfate (MgSO4), filtered and the solvent was evaporated. The residue was taken up in DIPE and filtered. The precipitate (1.2 g) was purified by column chromatography over silica gel (eluent: EtOAc 100%; 35–70 μm) and dried to yield 0.3 g (20%).

Provenance & Evidence