Rhodium-catalyzed enantioselective annulation of N-phenoxyacetamides with 1,3-dienes

Chiral dihydrobenzofuran is a valuable synthetic fragment in both medicinal and organic chemistry. Efficient rhodium(III)-catalyzed chemoselective and enantioselective C-H functionalization/[3+2] annulation of N-phenoxyacetamides with 1,3-dienes is reported. In the presence of 5 mol% CpRh complex, various chiral dihydrobenzofurans were synthesized in up to 79% yield and 98% ee. This reaction proceeds under mild conditions with excellent functional group compatibility.

Automated summary

Chiral dihydrobenzofuran is a valuable synthetic fragment in both medicinal and organic chemistry. Efficient rhodium(III)-catalyzed chemoselective and enantioselective C-H functionalization/[3+2] annulation of N-phenoxyacetamides with 1,3-dienes is reported. In the presence of 5 mol% CpRh complex, various chiral dihydrobenzofurans were synthesized in up to 79% yield and 98% ee. This reaction proceeds under mild conditions with excellent functional group compatibility.