Copper-catalyzed asymmetric ring opening of oxabicyclic alkenes with organolithium reagents
2012
A highly efficient method is reported for the asymmetric ring opening of oxabicyclic alkenes with organolithium reagents. Using a copper/chiral phosphoramidite complex together with a Lewis acid (BF3·OEt2), full selectivity for the anti isomer and excellent enantioselectivities were obtained for the ring opened products.
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