1. For general reviews of enantioselective ene reactions see: (a) Mikami, K.; Shimizu, M.Chem.Rev.1992,92, 1021. (b) Dias, L.Curr. Org. Chem.2000,4, 305. (c) Berrisford, D. J.; Bolm, C.Angew. Chem.,Int. Ed. Engl.1995,34, 1717. (d) Mikami, K.; Terada, M.Comprehensive AsymmetricCatalysis; Springer−Verlag: Berlin, Heidelberg, 1999; Vol. III, p 1143. (e) Mikami, K.; Nakai, T.Catalytic Asymmetric Synthesis; Wiley−VCH: New York, 2000; pp 543−568. For selected relevant articles on carbonyl-ene-type reactions see: (f) Evans, D. A.; Wu, J.J. Am. Chem. Soc.2005,127, 8006. (g) Evans, D. A.; Aye, Y.; Wu, J.Org. Lett.2006,8, 2071. (h) Ho, C.Y.; Ng, S.S.; Jamison, T. F.J. Am. Chem. Soc.2006,128, 5362.
2. α‐Hydroxy Acids in Enantioselective Syntheses
3. (b) Jacobsen, E. N.; Pfaltz, A.; Yamamoto, H.Comprehensives Asymmetric Catalysis; Springer−Verlag: Berlin, 1999; pp 912−1306.