Palladium catalyzed c-allylation of highly acidic carbo and heterocyclic β-dicarbonyl compounds
作者:M. Prat、M. Moreno-Mañas、J. Ribas
DOI:10.1016/s0040-4020(01)86091-9
日期:1988.1
Highly acidic carbo and heterocyclic β-dicarbonyl compounds such as barbituric acid, 3,5-dimethyl-2-1,2,6-thiadiazine 1,1-dioxide, cyclohexane-1,3-dione, tetronicacids, Meldrum acid and 1,2-diphenylpyrazolidine-3,5-dione are efficiently C-allylated with primary and secondary allylating agents under palladium catalysis.
Tetronic acid (pKa 3.76) and triaceticacidlactone (pKa 4.94) have been alkylated at their active carbon atoms by means of thermodinamically controlled palladium catalyzed allylic alkylations.
已通过热丁二胺控制的钯催化的烯丙基烷基化作用将四氢苯甲酸(pK a 3.76)和三乙酸内酯(pK a 4.94)烷基化。