Cut and join together: Chiral Copper phosphate complexes efficiently promoted a tandem sequence of deoxygenation/[4+2] cycloaddition reactions. This process gives access to various tetrahydroquinolines with threeconsecutive stereogenic centers in good yields with excellent diastereo‐and enantioselectivity.
Photoredox-Initiated α-Alkylation of Imines through a Three-Component Radical/Cationic Reaction
作者:Thibaut Courant、Géraldine Masson
DOI:10.1002/chem.201103062
日期:2012.1.9
Radical‐polar crossover reaction: The photoredox‐mediated alkylation of enamides with diethyl bromomalonate in the presence of alcohols has been developed. This multicomponent domino process affords β‐alkylated α‐carbamido ethers as stables imine surrogates in good to excellent yields under mild conditions (see scheme).