2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → HCID 13805992, compound

Participants

Reaction Steps

DDQ (0.16 g) was added to 5-methyl-6-(3-ethoxycarbonyl-dihydro-2-thiazolyl)-2H-1,4-thiazin-3(4H)-one (0.2 g) in dichloromethane (5 ml) and the reaction mixture was stirred at ambient temperature for 1.5 hours. The resulting crystals were filtrated, were washed with saturated aqueous calcium bicarbonate and successively with water, was recrystallized from methanol to give the titled compound (0.08 g, yield 54.0%) as white needles.

Provenance & Evidence