Scheme 1.
Twelve‐fold Povarov reaction of [4+6] imine cage 1 to the quinoline cage 2. a) Sc(OTf)3, chloranil, phenylacetylene (neat), 100 °C, 20 h, 25 % yield.
Twelve‐fold Povarov reaction of [4+6] imine cage 1 to the quinoline cage 2. a) Sc(OTf)3, chloranil, phenylacetylene (neat), 100 °C, 20 h, 25 % yield.