Sulfuric Acid → HCID 178423920, compound

Participants

Reaction Conditions

Reaction Steps

3-Cyano-4,6-dimethyl-2-mercaptopyridine (4.7 g, 28.6 mmol) is dissolved in H2SO4(60 ml, 98%) and then stirred at 105° C. for 3 h. The reaction is monitored by HPLC-MS. The reaction solution is cooled to 25° C. and then poured onto ice. The product eventually (15 min) precipitates out as a voluminous solid and is filtered off with suction and washed with H2O. The residue is taken up with aqueous Na2CO3 solution (pH 8-9) and the product is extracted with EtOAc. The solvent is distilled off under reduced pressure and the residue (white solid) is dried (Na2SO4).

Provenance & Evidence