Kinetic Resolution of 2‐Aryldihydroquinolines Using Lithiation – Synthesis of Chiral 1,2‐ and 1,4‐Dihydroquinolines
作者:Song‐Hee Yeo、Anthony Choi、Sophie Greaves、Anthony J. H. M. Meijer、Ilaria Proietti Silvestri、Iain Coldham
DOI:10.1002/chem.202300815
日期:2023.6.27
The asymmetric synthesis of substituted dihydroquinolines was achieved using a kineticresolution of 1,2-dihydroquinolines with n-BuLi and the chiral ligand sparteine. Subsequent lithiation at C-2 and trapping with an electrophile occurs at C-4 with retention of stereochemistry to provide an unusual route to enantiomerically enriched 1,4-dihydroquinolines.