Enantioselective fluorination of tert-butoxycarbonyl lactones and lactams catalyzed by chiral Pd(II)-bisphosphine complexes.
Toshiaki Suzuki, Tomomi Goto, Yoshitaka Hamashima, Mikiko Sodeoka
文献索引：J. Org. Chem. 72 , 246, (2007)
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摘要
An efficient catalytic enantioselective fluorination of tert-butoxycarbonyl lactones and lactams is reported. Reactions of the lactone substrates proceeded smoothly in an alcoholic solvent with a catalytic amount of chiral Pd(II) complex. In the case of the less acidic lactam substrates, concurrent use of the Pd complex and 2,6-lutidine as a cocatalyst was effective. Under the reaction conditions, the fluorinated lactones and lactams were obtained in good yield with excellent enantioselectivity (94-99% ee).
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