1,4-Cyclohexadiene-1,4-dicarboxylic acid, 2,5-bis(phenylamino)-, 1,4-dimethyl ester → Dimethyl 2,5-dianilinobenzene-1,4-dicarboxylate

Participants

Reaction Steps

Example 13 was repeated except that the 2,5-di(p-chloroanilino)-3,6-dihydroterephthalic acid dimethyl ester used in Example 13 was replaced with 7.56 parts of 2,5-dianilino-3,6-dihydroterephthalic acid dimethyl ester, to give 6.88 parts (98.9% of the theoretical yield) of 2,5-dianilinoterephthalic acid dimethyl ester.

Provenance & Evidence