Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1997-11-05
1999-02-23
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D40112
Patent
active
058745840
ABSTRACT:
An ion-sensitive calix(4)arene compound having the formula A.sup.2 +B.sup.2 - wherein A represents a cation capable of forming a receptor-substrate complex with an anion, and B represents sulfate, nitrate or borate, characterized in that the cation is an anion receptor represented by the formula ##STR1## wherein R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each independently a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group wherein substituents are selected from alkyl C(O)NH--, aryl C(O)NH--, alkoxy, aryloxy, alkoxycarbonyl, aryloxycarbonyl, alkylsulfonamido, arylsulfonamido, alkylcarbonyl, alkoxycarbonyl, aryloxycarbonyl, cyano and nitro;
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Shinkai, Chem. Letters, 835, 1990.
Pappalardo, Tet. Letters, 32, 7747, 1991.
Shinkai, Bull. Chem. Soc. Japan, 62, 4055, 1989.
Beer, Tetrahedron, 49, 9917, 1992.
Beer Paul D.
Fletcher Nicholas C.
Goulden Alistair J.
Moore Christopher Peter
Wear Trevor John
Eastman Kodak Company
Everett John R.
Raymond Richard L.
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