Feng, Wang Yang, Hui Wang, Zhe Gou, Bo-Bo Chen, Jie Zhou, Ling Enantioselective [3 + 2] Formal Cycloaddition of 1‑Styrylnaphthols with Quinones Catalyzed by a Chiral Phosphoric Acid The first highly enantioselective [3 + 2] formal cycloaddition of 1-styrylnaphthols (or phenol) with quinones catalyzed by a chiral phosphoric acid has been reported. A class of <i>trans</i>-2,3-diarylbenzofurans were prepared efficiently (up to 99% yield, >20:1 dr, 99% ee). This organocatalytic procedure allows lowering of the catalyst loading to 0.5 mol % without considerable loss in reactivity and enantioselectivity. enantioselectivity;Enantioselective;tran;ee;0.5;Quinones Catalyzed;organocatalytic procedure;cycloaddition;enantioselective;dr;reactivity;phenol;chiral phosphoric acid;Formal;mol;Chiral Phosphoric;1- styrylnaphthols;diarylbenzofuran;quinone;Styrylnaphthol;catalyst loading;Cycloaddition 2018-04-27
    https://acs.figshare.com/articles/journal_contribution/Enantioselective_3_2_Formal_Cycloaddition_of_1_Styrylnaphthols_with_Quinones_Catalyzed_by_a_Chiral_Phosphoric_Acid/6194822
10.1021/acs.orglett.8b00988.s001