Process of forming polysubstituted fullerenes
AssigneeExxon Research & Engineering Co.
InventorsLong Y. Chiang, Ravindra B. Upasani, John W. Swirczewski
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Abstract
The present invention is directed toward the preparation of novel polysubstituted fullerenes. The method of forming polysubstituted fullerenes comprises contacting a fullerene with an electrophilic reagent selected from the group consisting of nitronium ion and organic peracid, provided that when the electrophilic reagent is nitronium ion, the fullerene is subsequently contacted with a nucleophilic reagent.
Claims4
A process of forming polysubstituted fullerene comprising contacting a fullerene with an electrophilic reagent selected from the group consisting of nitronium ion and organic peracid, provided that when said electrophilic reagent is nitronium ion, the contacting is for a time and at a temperature sufficient to form a carbocation of the fullerene and said carbocation of the fullerene is thereafter contacted with a nucleophilic reagent selected from the group consisting of water and organic acids having the general formula ##STR3## where R is a substituted or nonsubstituted alkyl or aryl group and wherein the substituent group is selected from --OR';
- halides;
- --NO.sub.2 ;
- --CN;
- and --NHCOR', and wherein R' is an aliphatic group;
- and when the electrophilic reagent is an organic peracid, the contacting is for a time and at a temperature sufficient to form a poly(hydroxyorganocarboxy) fullerene.
Dependencies are inferred from the claim text.