Enantioselective vinylogous-Mukaiyama-type dearomatisation by anion-binding catalysis

Chem Commun (Camb). 2021 Sep 14;57(73):9244-9247. doi: 10.1039/d1cc03514b.

Abstract

The first enantioselective vinylogous Mukaiyama-type dearomatisation of heteroarenes under anion-binding catalysis is presented. A recyclable tetrakistriazole catalyst was used for the enantiocontrol of the remote vinylogous active position of silyl dienol ethers. This approach provided chiral heterocycles bearing α,β-unsaturated chains with complete regioselectivity and excellent enantioselectivities (up to 97.5 : 2.5 e.r.).