1,3-Benzenediamine, N1,N1,N3,N3-tetramethyl- → HCID 20523549, compound

Participants

Reaction Steps

A mixture of 2.91 g (0.01 mole) of 2-[(1-phenyl-2-pyrrolyl)carbonyl]benzoic acid prepared in part A above, 2.34 g (0.017 mole) of 84.6 percent active N,N,N',N'-tetramethyl-m-phenylenediamine in 4.0 ml of acetic anhydride was interacted in a manner similar to that described in Example 1, part C to obtain 2.61 g of 3-[2,4-bis(dimethylamino)phenyl]-3-(1-phenyl-2-pyrrolyl)phthalide (Formula IV: R0 =R1 =R2 =R3 =H; R=CH3 ; R4 =N(CH3)2 ; R7 =C6H5), a peach-colored powder melting at 193°-194° C. The infrared spectrum showed a maximum at 1760 cm-1 (C=O; s). A toluene solution of this product spotted on silica gel developed an immediate orange-red-colored image.

Provenance & Evidence