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0029905052
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(a) Recent synthesis: Berettoni, M.; Chiara, G. D.; Iacoangeli, T.; Surdo, P. L.; Bettolo, R. M.; di Mirabello, L. M.; Nicolini, L.; Scarpelli, R. Helv. Chim. Acta 1996, 79, 2035-2041 and references therein, (b) Our own synthetic study: Ihara, M.; Toyota, M.; Fukumoto, K.; Kamitani, T. J. Chem. Soc., Perkin Trans. 1 1986, 2151-2161 and references therein.
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37049079173
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and references therein
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(a) Recent synthesis: Berettoni, M.; Chiara, G. D.; Iacoangeli, T.; Surdo, P. L.; Bettolo, R. M.; di Mirabello, L. M.; Nicolini, L.; Scarpelli, R. Helv. Chim. Acta 1996, 79, 2035-2041 and references therein, (b) Our own synthetic study: Ihara, M.; Toyota, M.; Fukumoto, K.; Kamitani, T. J. Chem. Soc., Perkin Trans. 1 1986, 2151-2161 and references therein.
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0009823616
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and references therein
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Although a face-protonated, trachlobane-type intermediate is employed in ref 10, we prefer the bridged ions 2 and 3 that are now widely accepted, see: Coates, R. M.; Bertram, E. F. J. Org. Chem. 1971, 36, 3722-3729 and references therein.
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33748719845
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In some cases, the cyclopropylcarbinyl radical can be trapped to give the cyclopropane derivative. For example, see: Srikrishna, A.; Sharma, V. R. J. Chem. Soc., Perkin Trans. 1 1997, 177-181 and references therein.
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2642625829
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To prove the effect of the solvent, we used HMPA (to give 15, 36%) and DMPU (to give 15, 45%) as polar solvents
-
To prove the effect of the solvent, we used HMPA (to give 15, 36%) and DMPU (to give 15, 45%) as polar solvents.
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30
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0001249846
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2642694865
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note
-
2,7]octane derivative IV and endo-olefin III was produced under these reaction conditions. (Matrix Presented) (Matrix Presented)
-
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34
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0001834924
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-
Liotta, D., Ed.; JAI Press: Greenwich, CT
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Minimum energy structures were located by the global search program GMMX (Version 1.0) (Serena software, Bloomington, IN). The lowest energy structure 24C located in this fashion was then subjected to molecular mechanics minimization using the MMX force field (Gajewski, J. J.; Gilbert, K. E.; Mckelvey, J. In Advances in Molecular Modeling; Liotta, D., Ed.; JAI Press: Greenwich, CT, 1993; Vol. 2, pp 65-92) in the computer program PCMODEL (Version 5.01) (Serena software, Bloomington, IN). Finally, this molecular mechanics structure was reminimized by employing the PM3 model in the program MOPAC (Version 7.0) (Serena software, Bloomington, IN).
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Gajewski, J.J.1
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35
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0025976741
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and references therein
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For intramolecular Diels-Alder reactions of Br-containing trienes, see: Roush, W. R.; Kageyama, M.; Rita, R.; Brown, B. B.; Warmus, J. S.; Moriarty, K. J. J. Org. Chem. 1991, 56, 1192-1210 and references therein.
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Roush, W.R.1
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2642690854
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2 from a β-oriented diazene intermediate (CH-N=NH)
-
2 from a β-oriented diazene intermediate (CH-N=NH).
-
-
-
-
44
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0000501869
-
-
Although deoxygenation of the corresponding thiobenzoate, prepared from naturally occurring 12α-acetoxykaur-16-en-19-oic acid, was performed for degradation purposes, the reported product was (-)-kaurenoic acid (mass spectral analysis), see: Beale, M. H.; Bearder, J. R.; MacMillan, J.; Matsuo, A.; Phinney, B. O. Phytochemistry 1983, 22, 875-881.
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Phinney, B.O.5
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45
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2642692852
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See the Experimental Section of ref 17b
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See the Experimental Section of ref 17b.
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47
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Mitscher, L. A.; Rao, G. S. R.; Veysoglu, T.; Drake, S.; Haas, T. J. Nat. Prod. 1983, 46, 745-746.
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Haas, T.5
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