Mukaiyama-Michael Reaction
K. Narasaka et al., Bull. Chem. Soc. Japan 49, 779 (1976)
T. Mukaiyama, S. Kobayashi, Heterocycles 25, 245 (1987)
J. Otera et al., Tetrahedron 52, 9409 (1996)
N. Giuseppone et al., Tetrahedron Letters 39, 7874 (1998)
H. Paulsen et al., Angew. Chem. Int. Ed. 38. 3373 (1999)