1,4-Cyclohexadiene-1,4-dicarboxylic acid, 2,5-bis(phenylamino)-, diethyl ester → Quinacridone

Participants

Reaction Steps

A suspension of 250 g of diethyl 2,5-dianilino-3,6-dihydroterephthalate in 1 l of water was metered at 650° C. in the course of 1 hour in a nitrogen stream (1.5 m3) through a one-material nozzle into a tubular reactor (50 mm in diameter, 300 mm in length) in a axial direction. Using a wet collector, 183 g of quinacridone were isolated.

Provenance & Evidence