Dimethylformamide → HCID 72360122, compound

Participants

Reaction Steps

Dimethylformamide (1.3 ml) and conc. hydrochloric acid (1 drop) were added to 2-(4-t-butylphenyl)-3-hydroxy-4-methylcarbonylthiophene (70 mg, 0.26 mmol) synthesized in Reference Synthetic Example 33 and methyl 5-hydrazinocarbonothioylamino-2-thiophenecarboxylate (59 mg, 0.26 mmol) synthesized in Reference Synthetic Example 57, and the mixture was stirred overnight at room temperature. Water was added, and the precipitated solid was filtered. The obtained solid was extracted with chloroform, dried over anhydrous sodium sulfate. The organic layer was concentrated, and purified with a silica gel column chromatography (chloroform/methanol=95/5) to obtain the desired product as a pale yellow solid (112 mg, yield 90%).

Provenance & Evidence