2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → HCID 13240421, compound

Participants

Reaction Steps

To a solution of 3H-phenothiazin-3-one (0.64 g) in 75 ml methanol was added triethylamine (1.0 ml) and n-butanethiol (0.58 ml). The mixture was stirred at room temperature for 48 hours. Then 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (0.67 g) was added. The mixture was stirred at room temperature for 2 hours. The solvent was removed in vacuo. The residue was chromatographed on neutral alumina (Act III) and eluted with 15% EtOAc/hexane to afford the title compound (0.4 g), m.p. 133° C.

Provenance & Evidence