The first regiodivergent opening of unbiased epoxides providing the ring-opened products in high enantiomeric excess from racemic and exceptionally high enantiomeric excess from enantioenriched substrates in a double asymmetric process has been devised. It constitutes a more general case of the very important enantioselective openings of meso-epoxides.
The reactions of 2,3-epoxyaldehydes with methoxymethylenetriphenylphosphorane. Enantioselective syntheses of (E)-4-hydroxyalk-2-enals
作者:Libing Yu、Zhiqin Wang
DOI:10.1039/c39930000232
日期:——
The reactions of 2,3-epoxyaldehydes with methoxymethylenetriphenylphosphorane in tetrahydrofuran provide directly (E)-4-hydroxy-2-enals with the retention of configuration.