A cascade radical-mediated macrocyclisation–transannulation approach to oestrogen steroids

Quellet, 1997, Synlett, 689 Haruo, 1995, Synlett, 231 Pellissier, 1996, Tetrahedron, 52, 9093, 10.1016/0040-4020(96)00460-7 Ogasawara, 1996, Tetrahedron Lett., 37, 7403, 10.1016/0040-4039(96)01688-7 Grinsteiner, 1994, Tetrahedron Lett., 35 Corey, 1996, J. Am. Chem. Soc., 118, 8765, 10.1021/ja9620806 Fish, 1994, J. Org. Chem., 59, 6150, 10.1021/jo00100a009 Batsanov, 1996, J. Chem. Soc., Perkin Trans., 1 Handa, 1998, Chem. Commun., 311, 10.1039/a707320h Boehm, 2000, J. Chem. Soc., Perkin Trans., 1, 3522, 10.1039/b002999h Double, 1998, J. Chem. Soc., Perkin Trans., 1, 2005, 10.1039/a802298d Roberts, 1998, J. Chem. Soc., Perkin Trans., 1, 863 Handa, 2000, Helv. Chim. Acta, 83, 2629, 10.1002/1522-2675(20000906)83:9<2629::AID-HLCA2629>3.0.CO;2-W Handa, 1997, Contemporary Org. Synthesis, 4, 196, 10.1039/co9970400196 Caspar, 1991, Tetrahedron Lett., 32, 4819, 10.1016/S0040-4039(00)93469-5 Katouda, 1995, Tetrahedron Lett., 36, 2273, 10.1016/0040-4039(95)00269-I Ribeiro, 1995, Tetrahedron Lett., 36, 2925, 10.1016/0040-4039(95)00433-D Ribeiro, 1995, Tetrahedron Lett., 36, 2929, 10.1016/0040-4039(95)00434-E Curran, 1995, Tetrahedron Lett., 36, 8921, 10.1016/0040-4039(95)01918-8 Chen, 1996, Tetrahedron Lett., 37, 7909, 10.1016/0040-4039(96)01793-5 Sakamoto, 1997, J. Org. Chem., 62, 1912, 10.1021/jo962388f Fang, 1998, Tetrahedron Lett., 63, 7213 Doi, 1999, Tetrahedron Lett., 40, 2363, 10.1016/S0040-4039(99)00133-1 Ihara, 1999, Tetrahedron Lett., 40, 6277, 10.1016/S0040-4039(99)01234-4 We thank Dr A J Blake of this School for this information, which will be published in the full paper Hitchcock, 1998, J. Chem. Soc., Perkin Trans., 1, 3181, 10.1039/a805268i