3-(4-aminophenyl)-3-(1-substituted-3-indolyl) phthalides and...

Details 3-(4-aminophenyl)-3-(1-substituted-3-indolyl) phthalides and... 3-(4-aminophenyl)-3-(1-substituted-3-indolyl) phthalides and...

C - Chemistry, Metallurgy

07

D

42/14, 260/279,

C07D 405/04 (2006.01) B41M 5/124 (2006.01) B41M 5/145 (2006.01) B41M 5/327 (2006.01) C07D 491/04 (2006.01) C07D 491/048 (2006.01)

Patent

CA 1307531

D.N. 8136 A NOVEL COMPOUNDS, PROCESSES AND MARKING SYSTEMS ABSTRACT OF THE DISCLOSURE 3-(1-R-2-R1-5/6-Y-indol-3-yl)-3-(2-R2-4-N-R3-N- R4-aminophenyl)-X-phthalides, 7-(1-R-2-R1-5/6-Y-indol-3-yl)- 7-(2-R2-4-N-R3-N-R4-aminophenyl)furo[3,4b]-pyridine-5(7H)- ones and 5-(1-R-2-R1-5/6-Y-indol-3-yl)-5-(2-R2-4-N-R3-N- R4-aminophenyl)furo[3,4b]-pyridine-7(5H)-ones are useful as color formers in transfer imaging systems, pressure-sensitive carbonless duplicating systems and thermal-responsive marking systems. The phthalides are prepared by the interaction of the corresponding 2-(1-R-2-R1-5/6-Y-indol-3-yl)carbonyl-X-benzoic acid with the corresponding 3-R2-N-R3-N-R4-aniline or the interaction of the corresponding 2-(2-R2-4-N-R3-N-R4- aminophenyl)carbonyl-X-benzoic acid with the corresponding 1-R-2-R1-5/6-Y-indole. The furopyridines are prepared by the interaction of the corresponding 2/3-(1-R-2-R1-5/6-Y-indol- 3-yl)carbonylpyridine-3/2-carboxylic acid with the corresponding 3-R2-N-R3-N-R4-aniline. The novel 1-R-2-R1-5/6-Y-indol-3- yl)carbonyl-X-benzoic acids and 1-R-2-R1-5/6-Y-indoles are useful as intermediates to the appropriate phthalides and furopyridinones.

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