Organic Letters p. 3061 - 3064 (2006)
Update date:2022-08-05
Topics:
Chedid, Roland Bou
Froehlich, Roland
Hoppe, Dieter
Lithium compounds 7 are configurationally stable intermediates obtained by deprotonation of 1,3-dien-2-yl carbamates 6 with n-butyllithium/(-)-sparteine with a high degree of enantiotopic differentiation at the γ-position. They react with electrophiles regioselectively giving highly enantioenriched products. Starting with different isomers or changing the double-bond geometries in 6 leads to either of the enantiomers.
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