Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1996-10-22
1998-06-02
Berch, Mark L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
540456, 546265, C07F 1500, C07D40112
Patent
active
057602310
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;
REFERENCES:
Shinkai, J. Org. Chem. 57, 1516 (1992).
Shinkai, Chem. Letters 1990, 835 (1990).
Pappalardo, Tet. Letters 32, 7747 (1991).
Shinkai, Bull. Chem. Soc. Japan 62, 4055 (1989).
Beer, Tetrahedron 48, 9917 (1992).
Beer Paul D.
Fletcher Nicholas C.
Goulden Alistair J.
Moore Christopher Peter
Wear Trevor John
Berch Mark L.
Eastman Kodak Company
Everett John R.
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