1,3-Benzenediamine, N1,N1,N3,N3-tetramethyl- → HCID 20523532, compound

Participants

Reaction Steps

Employing the procedure of part B of Example 17 hereinabove, 3.70 g (0.01 mole) of 2-[(1-methyl-2-pyrrolyl)carbonyl]-3,4,5,6-tetrachlorobenzoic acid, prepared as described in part A above, and 2.0 g (0.012 mole) of N,N,N',N'-tetramethyl-m-phenylenediamine were interacted in the presence of 10 ml of acetic anhydride to obtain 3-[2,4-bis(dimethylamino)phenyl]-3-(1-methyl-2-pyrrolyl)-4,5,6,7-tetrachlorophthalide (Formula IV: Ro =R1 =R2 =R3 =Cl; R=R7 =CH3 ; R4 =N(CH3)2).

Provenance & Evidence