Targeted, metal-catalyzed fluorination of complex compounds with fluoride ion via decarboxylation
Methods of preparing fluorinated compounds by carboxylative fluorination using fluoride are contained herein. Fluorinated compounds are provided. Methods of using fluorinated compounds are contained herein.
1. A method of targeted fluorination of a compound containing a carboxyl group, the method comprising combining the compound, a nucleophilic fluoride source comprising a fluorine moiety, a manganese catalyst, a solvent and an iodine(III) oxidant, wherein the iodine (III) oxidant is selected from the group consisting of dichlorobenzene, iodobenzene diacetate, Bis(tert-butylcarbonyloxy)iodobenzene, iodosylmesitylene, [Bis(trifluoroacetoxy)iodo]benzene, [hydroxyl(tosyloxy)iodo]benzene, iodomesitylene diacetate, Iodosylpentafluorobenzene, [Bis(trifluoroacetoxy)iodo] pentafluorobenzene, 3,3-dimethyl-1-fluoro, 1, 2-benziodoxole, and (2-tert-butylsulfonyl)iodosobenzene and the carboxyl group is replaced by the fluorine moiety.
2. The method of claim 1 , wherein the manganese catalyst is a manganese porphyrin or a manganese salen.
3. The method of claim 1 , wherein the nucleophilic fluoride source is trialkyl amine trihydrofluoride.
4. The method of claim 3 , wherein the nucleophilic fluorides source is triethylamine trihydrofluoride.
5. The method of claim 1 , wherein combining comprises: mixing the manganese catalyst, the nucleophilic fluoride source, the compound and the solvent under an inert atmosphere to form a first mixture; and adding the iodine (III) oxidant to the first mixture to form a second mixture.
6. The method of claim 5 further comprising maintaining the first mixture at a temperature from 25° C. to 80° C.
7. The method of claim 5 , wherein the step of adding the oxidant occurs over a period of 45 minutes to 90 minutes.
8. The method of claim 1 , wherein combining further comprises adding benzoic acid.