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. Author manuscript; available in PMC: 2016 Feb 20.
Published in final edited form as: Org Lett. 2015 Feb 2;17(4):940–943. doi: 10.1021/ol503764d

Figure 1.

Figure 1

Carbonyl-directed CAHB exploits π-facial selectivity for β,γ-unsaturated substrates 1 and 3 and re/si-site selectivity for the enantioselective desymmetrization of γ,δ–substrate 5a.