Diastereoselective Hartwig–Buchwald Reaction of Chiral Amines withrac-[2.2]Paracyclophane Derivatives
作者:Michael Kreis、Christian J. Friedmann、Stefan Bräse
DOI:10.1002/chem.200500386
日期:2005.12.9
rac-4-bromo-[2.2]paracyclophane and rac-trifluoromethanesulfonic acid (4-[2.2]paracyclophane) ester was performed with high diastereoselectivities. Kinetic racemic resolution of the starting materials was achieved, providing a rapid access to enantiomerically enriched 4-bromo-[2.2]paracyclophane and the corresponding enantiomerically pure [2.2]paracyclophane amines. Additionally, the first reaction of a secondary