Controlling the C(sp<sup>3</sup>)–C(sp<sup>2</sup>) Axial Conformation in the Enantioselective Friedel–Crafts-Type Alkylation of β-Naphthols with Inden-1-ones
作者:Nicola Di Iorio、Giacomo Filippini、Andrea Mazzanti、Paolo Righi、Giorgio Bencivenni
DOI:10.1021/acs.orglett.7b03415
日期:2017.12.15
inden-1-ones and 2-naphthols generates a hindered single bond which displays a unique preference for an antiperiplanar conformational diastereoisomer. The steric hindrance and the presence of an enantioenriched stereogenic center control the distribution of the two diastereomeric conformers at equilibrium and increase the energy for the rotation of the C(sp3)–C(sp2) single bond.