Copper‐Catalysed Double O‐Arylation for Enantioselective Synthesis of oxa‐Spirocycles

Abstract A copper‐catalysed double O ‐aylation for enantioselective formation of chiral oxa ‐spirocycles is described. The method is based on a stepwise process and afforded chiral oxa ‐spirocycles with good yields and moderate to high enantioselectivities. magnified image