Stuart L. Schreiber et al., Tetrahedron Ltrs., vol. 24, No. 23, pp. 2363-2366, 1983. |
Bruce H. Lipshutz, Chem. Rev. 1986, 86,795-819. |
Maria Altamura et al., Syn. Comm., 18(16-17), 2129-2133, (1988). |
Klaus Gollnick et al., Tetrahedron, vol. 41, No. 11, pp. 2057 to 2068, 1985. |
Masao Shiozaki et al., Tetrahedron, vol. 40, No. 10, pp. 1795 to 1802, 1984. |
Paul J. Reider et al., Tetrahedron Lts., vol. 23, No. 22, pp. 2293-2296, 1982. |
Curt Wentrup et al., J. Am. Chem. Soc. 1980, 102, 6161-6163. |
Gunda I. Georg et al., Tetrahedron Ltrs., vol. 26, No. 33, pp. 3903-3906, 1985. |
Gunda I. Georg et al., J. Am. Chem. Soc. 1987, 109, 1129-1136. |