Fig. 1: Outline of this work.

A Background of enantioselective [2 + 2] and [4 + 2] cycloaddition reactions. B Representative biologically active molecules. C [4 + 2] cycloaddition of anthracene and its derivatives. D Design plan.
A Background of enantioselective [2 + 2] and [4 + 2] cycloaddition reactions. B Representative biologically active molecules. C [4 + 2] cycloaddition of anthracene and its derivatives. D Design plan.