1,2-Dichlorobenzene → HCID 141613330, compound

Participants

Reaction Steps

0.5 g (1.32 mmoles) of 6,11-Dihydroxy-naphthacene-5,12-dione-2,3-dicarboxylic acid (product of Example 8), 0.28 g (1.58 mmoles) of 2,6-diisopropylaniline, and 25 ml of o-dichlorobenzene are refluxed for 4 h with azeotropic removal of the reaction water. The mixture is filtered while hot, and the filtrate is kept at 25° for 18 h. The precipitate is washed with hot hexane and dried to give 0.35 g (51%) of red crystals, m.p. 328-330°.

Provenance & Evidence