Lithiation of Diamine Ligands to Chiral Building Blocks: Syntheses, Selectivities, and Lithiated Intermediates
作者:Viktoria H. Gessner、Carsten Strohmann
DOI:10.1021/om100035g
日期:2010.4.12
The direct deprotonation of the chiral nitrogen ligands (R,R)-TECDA (2) and (R,R)-TEMCDA (6) with tert-butyllithium to highly reactive buildingblocks is reported. The regioselectivity of the lithiation reactions can be explained by the isolated precoordinated intermediates such as tBuLi·(R,R)-TECDA in combination with computational studies.