Organocatalytic asymmetric conjugate addition of 2-fluoro-1,3-diketones to nitroalkenes

Enantioselective Fluorination of α-Substituted β-Diketones Using β,β-Diaryl Serines

We report the enantioselective fluorination of α-substituted β-diketones using β,β-diaryl serines as a primary amine organocatalyst. The reaction affords the corresponding fluorinated products in yields of 74 to 99% with excellent enantioselectivity (75-95% ee). Moreover, for synthetic applications, the diol, aldols, and the allylic fluoride were synthesized from 2a, maintaining excellent enantioselectivity (94% ee). The control experiment reveals that the CO₂H group of the β,β-diaryl serines plays an important role in inducing the high enantioselectivity.

Design and organocatalytic synthesis of spirooxindole–cyclopentene–isoxazole hybrids as novel MDM2–p53 inhibitors

An organocatalytic 1,6-cycloaddition with exclusive α-regioselectivity to synthesize designed spirooxindole–cyclopentene–isoxazole hybrids as novel MDM2–p53 inhibitors.

1,4-Refunctionalization of β-diketones to γ-keto nitriles via C–C single bond cleavage

The 1,4-refunctionalization of β-diketones to γ-keto nitriles was realized via an Fe-catalyzed cascade radical process.