6533b834fe1ef96bd129cb2f

RESEARCH PRODUCT

ChemInform Abstract: E,Z-Stereodivergent Synthesis of N-Tosyl α,β-Dehydroamino Esters via a Mukaiyama-Michael Addition

M. Carmen MuñozMiguel EspinosaLuz CardonaAndrea Garcia‐ortizGonzalo BlayJosé R. Pedro

subject

chemistry.chemical_compoundTosylchemistryMichael reactionchemistry.chemical_elementGeneral MedicineMedicinal chemistryTrifluoromethanesulfonateCopperDichloromethane

description

The stereodivergent synthesis of N-tosyl α,β-dehydroamino esters via a Mukaiyama–Michael addition is reported. The reaction of silylketene acetals with N-tosylimines derived from β,γ-unsaturated α-keto esters in dichloromethane provided the corresponding (Z)-α,β-dehydroamino esters while the (E)-isomers were obtained when the reaction was carried out in the presence of 10 mol% copper(II) triflate.

https://doi.org/10.1002/chin.201624077