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0000664472
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(c) Drogemuller, M; Jautelat, R.; Winterfeldt, E. Angew. Chem. Int. Ed. Engl. 1996, 35, 1572;
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(d) Guo, C.; Bhandaru, S.; Boyd, M.; Fuchs, P. L. J. Am. Chem. Soc. 1996, 118, 10672.
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8
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0032481403
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& refs therein
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5. LaCour, T. G.; Guo, C.; Bhandaru, S.; Boyd, M. R.; Fuchs, P. L. J. Am. Chem. Soc. 1998, 120, 692 & refs therein..
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LaCour, T.G.1
Guo, C.2
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Fuchs, P.L.5
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0001678926
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(b) Jeong, J. U.; Guo, C.; Fuchs, P. L. J. Am. Chem. Soc. 1999, 121, 2071;
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Jeong, J.U.1
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(c) Kim, S.; Sutton, S.; Guo, C.; LaCour, T. G.; Fuchs, P. L. J. Am. Chem. Soc. 1999, 121, 2056.
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Kim, S.1
Sutton, S.2
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LaCour, T.G.4
Fuchs, P.L.5
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13
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37049058747
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(b) Cameron, A.F.B.; Evans, R.M.; Hamlet, J.C.; Hunt, J.S.; Jones, P.G.; and Long, A.G. J. Chem. Soc. 1955, 2807.
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Cameron, A.F.B.1
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Jones, P.G.5
Long, A.G.6
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14
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0013624778
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note
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2O (ref 9c). However, mineral acids have been found to be generally unsuitable as catalysts for opening steroidal spiroketals due to redox-mediated epimerization at C25 (ref 12).
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15
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0004208435
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Rheinhold:NY, and references therein
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9. (a) Fieser, L. F. and Fieser, M. Steroids; Rheinhold:NY, 1959 and references therein;
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(1959)
Steroids
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Fieser, L.F.1
Fieser, M.2
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16
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0000627380
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5-3,26-ditosylate was selectively (80%) hydrolyzed
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5-3,26-ditosylate was selectively (80%) hydrolyzed;
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(1961)
J. Am. Chem. Soc.
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Uhle, F.C.1
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19
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84987141788
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(b) Garegg, P. J.; Johansson, R.; Samuelsson, B. Synthesis 1984, 84, 168;
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Synthesis
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Garegg, P.J.1
Johansson, R.2
Samuelsson, B.3
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22
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33947462809
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12. (a) Woodward, R. B.; Sondheimer, F.; Mazur, Y. J. Am. Chem. Soc. 1958, 80, 6693;
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Woodward, R.B.1
Sondheimer, F.2
Mazur, Y.3
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23
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0013602503
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(b) Deslongchamps, P.; Rowan, D. D.; Pothier, N. Can. J. Chem. 1981, 59, 2787.
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Deslongchamps, P.1
Rowan, D.D.2
Pothier, N.3
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24
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0013573054
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note
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2: 4d (see ref 5 Supp. Info.): 3.23 (1H, dd, J=9.6, 4.3), 3.14 (1H, dd, J=9.6, 5.7); 4e: 3.47 (1H, dd, J=10.6, 5.1), 3.40 (1H, dd, J=10.6, 6.1).
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25
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0013625495
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manuscript in preparation
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14. LaCour, T. G. and Fuchs, P. L. manuscript in preparation.
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LaCour, T.G.1
Fuchs, P.L.2
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26
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0342618462
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15. Dorta, R. L.; Rodriguez, M. S.; Salazar, J. A.; Suarez, E. Tetrahedron Lett. 1997, 38, 4675.
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Dorta, R.L.1
Rodriguez, M.S.2
Salazar, J.A.3
Suarez, E.4
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27
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0000094042
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16. (a) Arrieta, A.; Ganboa, I.; Palomo, C. Syn. Comm. 1984, 14, 939;
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Syn. Comm.
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Arrieta, A.1
Ganboa, I.2
Palomo, C.3
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28
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0000081287
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(b) Armstrong, V. W.; Chisti, N. H.; Ramage, R. Tetrahedron Lett. 1975, 16, 373.
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Armstrong, V.W.1
Chisti, N.H.2
Ramage, R.3
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31
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0013573472
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note
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(c) The cyclic THP C-O bond is not cleaved. The dihydropyran product may arise via an α-bromo-THP.
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33
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0013597805
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note
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2.
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