1017295-11-2Relevant articles and documents
Allylation of ketones with a ferrocene-based planar chiral lewis acid
Boshra, Ramez,Doshi, Ami,Jaekle, Frieder
, p. 1134 - 1137 (2008)
Flat, like your hand: The heteronuclear bidentate Lewis acid 1,2-Fc(BMeCl)-(SnMe2Cl) is readily resolved into its constituent enantiomers through highly stereoselective complexation with N-methylpseudoephedrine. The resulting planar chiral Lewis acids show optical purities greater than 97 % and, upon conversion to the respective allylborane derivatives (see scheme), rapidly add to ketones with enantiomeric excess of up to 80 %. (Chemical Equation Presented).