Manipulating the Diastereoselectivity of Ortholithiation in Planar Chiral Ferrocenes
作者:Simon A. Herbert、Dominic C. Castell、Jonathan Clayden、Gareth E. Arnott
DOI:10.1021/ol4013734
日期:2013.7.5
The sense of asymmetric ortholithiation directed by a chiral oxazoline may be inverted simply by the choice of achiral ligand. Comparison of results with a number of ferrocenyl oxazoline derivatives suggests that lithiation takes place by coordination to the oxazoline nitrogen irrespective of the ligand used.