Thionyl Chloride → HCID 20377648, compound

Participants

Reaction Steps

42 g (0.14 mol) of 9,10-dihydro-9-hydroxy-9-(4-methylphenyl)-10-oxo-anthracene and 20.2 g (107 mol) of thionyl chloride in 500 ml of methylene chloride are heated under reflux for 8 hours. Thereafter, the solvent is distilled off in vacuo and the solid which remains is recrystallised from petroleum ether. 36.2 g (70.9% of theory) of 9-chloro-9,10-dihydro-9-(4-methylphenyl)-10-oxo-anthracene of melting point 136°-140° C. are obtained.

Provenance & Evidence