Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1989-03-08
1991-02-26
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
544 60, 544 61, 544 62, 544142, 544143, 544144, 546200, 546201, 548540, 548455, C07D20914
Patent
active
049963287
ABSTRACT:
Novel bis-(indolyl)ethylenes, process for their production and record systems utilizing such bis-(indolyl)ethylene chromogens are described.
Bis-(indolyl)ethylenes of the following general formula are prepared: ##STR1## wherein each L.sup.1 and L.sup.2 is the same or different and is each independently selected from indole moieties (J1) through (J4) (L.sup.1 need not be the same as L.sup.2), ##STR2## wherein in (J1) through (J4) above, each of R.sup.5, R.sup.6, R.sup.13, R.sup.14, R.sup.21, R.sup.22, R.sup.29 and R.sup.30 need not be the same and is each independently selected from hydrogen, alkyl (C.sub.1 -C.sub.8), cycloalkyl, alkylaroxy, alkylalkoxy, and substituted or unsubstituted aryl, such as phenyl, naphthyl, or heterocyclyl.
Each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12, R.sup.15, R.sup.16, R.sup.17, R.sup.18, R.sup.19, R.sup.20, R.sup.23, R.sup.24, R.sup.25, Rphu 26, R.sup.27, and R.sup.28 need not be the same and is each independently selected from hydrogen, alkyl (C.sub.1 -C.sub.8), cycloalkyl, substituted or unsubstituted aryl, halogen, alkoxy (C.sub.1 -C.sub.8), aroxy, cycloalkoxy, dialkylamino including symmetrical and unsymmetrical alkyl groups with one to eight carbon, alkylcycloalkylamino, dicycloalkylamino, ##STR3## wherein Z is hydrogen, alkyl (C.sub.1 -C.sub.8), substituted or unsubstituted aryl, aralkyl, aroxyalkyl, alkoxyalkyl or halogen.
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Appleton Papers Inc.
Mieliulis Benjamin
Raymond Richard L.
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