Catalytic asymmetric all-carbon-based inverse-electron-demand Diels–Alder reactions are challenging. Now, transition metal catalysts enable formal inverse-electron-demand [4+2] cycloaddition reactions of Morita–Baylis–Hillman carbonates with 1,3-unsaturated compounds to afford chiral cyclohexene derivatives.
- Jun-Xiong He
- Qi-Tao Lu
- Quan Cai