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.
Enantioselective and Regiodivergent Functionalization of<i>N-</i>Allylcarbamates by Mechanistically Divergent Multicatalysis
作者:Edward Richmond、Ismat Ullah Khan、Joseph Moran
DOI:10.1002/chem.201602792
日期:2016.8.22
A pair of mechanistically divergent multicatalytic reaction sequences has been developed consisting of nickel‐catalyzed isomerization of N‐allylcarbamates and subsequent phosphoric‐acid‐catalyzed enantioselective functionalization of the resulting intermediates. By appropriate selection of reaction partners, in situ generated imines and ene‐carbamates are mechanistically partitioned to yield opposing