- PALLADIUM CATALYZED ALLYLIC C-ALKYLATION OF HIGHLY ACIDIC AND ENOLIC HETEROCYCLIC SUBSTRATES: TETRONIC ACID AND TRIACETIC ACID LACTONE
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Tetronic acid (pKa 3.76) and triacetic acid lactone (pKa 4.94) have been alkylated at their active carbon atoms by means of thermodinamically controlled palladium catalyzed allylic alkylations.
- Moreno-Manas, Marcial,Prat, Maria,Ribas, Jordi,Virgili, Albert
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- PALLADIUM CATALYZED C-ALLYLATION OF HIGHLY ACIDIC CARBO AND HETEROCYCLIC β-DICARBONYL COMPOUNDS
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Highly acidic carbo and heterocyclic β-dicarbonyl compounds such as barbituric acid, 3,5-dimethyl-2H-1,2,6-thiadiazine 1,1-dioxide, cyclohexane-1,3-dione, tetronic acids, Meldrum acid and 1,2-diphenylpyrazolidine-3,5-dione are efficiently C-allylated with primary and secondary allylating agents under palladium catalysis.
- Prat, M.,Moreno-Manas, M.,Ribas, J.
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p. 7205 - 7212
(2007/10/02)
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