2,3-Dichloro-5,6-dicyano-1,4-benzoquinone → HCID 13853729, compound

Participants

Reaction Steps

To a solution of phenothiazin-3-one (0.21 g) in 20 ml THF was added triethylamine (0.28 ml) and n-butanethiol (0.2 ml). The mixture was refluxed for 15 hours and then cooled to room temperature. 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) (0.22 g) was added and the reaction was stirred for 2 hours at 25°. 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, m.p. 72° C.

Provenance & Evidence