Organocatalytic enantioselective synthesis of dihydronaphthofurans and dihydrobenzofurans: reaction development and insights into stereoselectivity
作者:Zeynep Dilşad Susam、Bilge Deniz Özcan、Enis Kurtkaya、Erol Yildirim、Cihangir Tanyeli
DOI:10.1039/d2ob01571d
日期:——
Squaramide/cinchona alkaloid-derived bifunctionalorganocatalysts are in high demand in asymmetric transformations. Bifunctional quinine-derived sterically encumbered squaramide (H-bond donor) organocatalysts were used to catalyze the asymmetric Friedel–Crafts/SN2 type domino reaction of (Z)-α-bromonitroalkenes and α/β-naphthols and phenol derivatives to generate enantiomerically enriched dihydronaphthofuran