3-aminophenyl-3-(phenylsulfonyl)-1,1-bis(aminophenyl/indol-3-yl)

Details 3-aminophenyl-3-(phenylsulfonyl)-1,1-bis(aminophenyl/indol-3-yl) 3-aminophenyl-3-(phenylsulfonyl)-1,1-bis(aminophenyl/indol-3-yl)

1989-01-03

1990-01-23

Raymond, Richard L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546201, 546232, 548467, 548469, 548577, 564335, C07C14712, C07D20910

Patent

active

048959588

ABSTRACT:
1-A-1-B-3-(2-R.sup.2 -4-N-R-N-R.sup.1 -aminophenyl)-3-(-4-R.sup.3 -phenylsulfonyl)prop-1-ene useful as color formers, particularly in transfer imaging, pressure-sensitive and thermal-responsive carbonless duplicating systems, are prepared by the interaction of the corresponding 1-A-1-B-ethene with the appropriate 2-R.sup.2 -4-N-R-N-4.sup.1 -benzaldehyde and the appropriate 4-R.sup.3 -benzenesulfinic acid in the presence of an acidic catalyst.

REFERENCES:
patent: 4287336 (1981-09-01), Petitpierre

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