E. J. Corey and Z. Wang, Enantioselective conversion of aldehydes to cyanohydrins by a catalytic system with separate chiral binding sites for aldehyde and cyanide components, Tetrahedron Letters, vol.34, issue.25, pp.4001-4004, 1993.
DOI : 10.1016/S0040-4039(00)60600-7

B. Leroy, A new and rapid access towards exo-methylene-??-valerolactones from (cyclopropyl)methylstannanes, Tetrahedron Letters, vol.46, issue.44, pp.7563-7566, 2005.
DOI : 10.1016/j.tetlet.2005.08.152

A. G. González, M. H. Silva, J. I. Padrón, F. León, E. Reyes et al., Synthesis and Antiproliferative Activity of a New Compound Containing an ??-Methylene-??-Lactone Group, Journal of Medicinal Chemistry, vol.45, issue.12, pp.2358-2361, 2002.
DOI : 10.1021/jm025518n

C. S. Consorti, G. Ebeling, and J. Dupont, Carbonylation of alkynols catalyzed by Pd(II)/2-PyPPh2 dissolved in organic solvents and in ionic liquids: a facile entry to ??-methylene ??- and ??-lactones, Tetrahedron Letters, vol.43, issue.5, pp.753-755, 2002.
DOI : 10.1016/S0040-4039(01)02309-7

Y. Komatsu, F. Sasaki, S. Takei, and T. Kitazume, Enzymatic Synthesis of Both Enantiomers of 2-Methylene-4-(fluoromethyl)-4-butanolides, The Journal of Organic Chemistry, vol.63, issue.22, pp.8058-8061, 1998.
DOI : 10.1021/jo981183z

A. Hassner, H. W. Pinnick, and J. M. Ansell, Cycloadditions. 23. Synthetic approaches to .alpha.-methylene-.gamma.-lactones via cycloadditions of ketenes, The Journal of Organic Chemistry, vol.43, issue.9, pp.1774-1776, 1978.
DOI : 10.1021/jo00403a032