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-
-
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22
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33846918091
-
-
Boltzmann distributions were calculated with Spartan02.
-
Boltzmann distributions were calculated with Spartan02.
-
-
-
-
23
-
-
33846926677
-
-
See the Supporting Information for an overlay of the conformational groupings
-
See the Supporting Information for an overlay of the conformational groupings.
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25
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0000647572
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33747769010
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30
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33846938675
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All enantiomeric ratios were determined by chiral stationary phase (CSP) HPLC on a Chiralpak AS-H or a Chiralcel OD-H column
-
All enantiomeric ratios were determined by chiral stationary phase (CSP) HPLC on a Chiralpak AS-H or a Chiralcel OD-H column.
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32
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Frisch, M. J.; Trucks, G. W.; Schlegel, H. B.; Scuseria, G. E.; Robb, M. A.; Cheeseman, J. R.; Montgomery, J. A., Jr.; Vreven, T.; Kudin, K. N.; Burant, J. C.; Millam, J. M.; Iyengar, S. S.; Tomasi, J.; Barone, V.; Mennucci, B.; Cossi, M.; Scalmani, G.; Rega, N.; Petersson, G. A.; Nakatsuji, H.; Hada, M.; Ehara, M.; Toyota, K.; Fukuda, R.; Hasegawa, J.; Ishida, M.; Nakajima, T.; Honda, Y.; Kitao, O.; Nakai, H.; Klene, M.; Li, X.; Knox, J. E.; Hratchian, H. P.; Cross, J. B.; Adamo, C.; Jaramillo, J.; Gomperts, R.; Stratmann, R. E.; Yazyev, O.; Austin, A. J.; Cammi, R.; Pomelli, C.; Ochterski, J. W.; Ayala, P. Y.; Morokuma, K.; Voth, G. A.; Salvador, P.; Dannenberg, J. J.; Zakrzewski, V. G.; Dapprich, S.; Daniels, A. D.; Strain, M. C.; Farkas, O.; Malick, D. K.; Rabuck, A. D.; Raghavachari, K.; Foresman, J. B.; Ortiz, J. V.; Cui, Q.; Baboul, A. G.; Clifford, S.; Cioslowski, J.; Stefanov, B. B.; Liu, G.; Liashenko, A.; Piskorz, P.; Komaromi, I.; Martin, R. L.; Fox, D. J.; Keith, T.; Al-Laham, M. A.; Peng, C. Y.; Nanayakkara, A.; Challacombe, M.; Gill, P. M. W.; Johnson, B.; Chen, W.; Wong, M. W.; Gonzalez, C.; Pople, J. A. Gaussian '03; Gaussian, Inc.: Wallingford CT, 2004.
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The sum of two hydrogen van der Waals radii is 2.40 Å: Pauling, L. The Nature of the Chemical Bond, 3rd ed.; Cornell University Press; Ithaca, NY, 1960; p. 260.
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33846925436
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An in-depth study of the A-ring β-CH2 effect will be discussed in a forthcoming communication
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2 effect will be discussed in a forthcoming communication.
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85023571747
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The procedure as used in the preparation of 1,2-dibromo-3,4,5,6- tetramethylbenzene was followed: (a) Kajigaeshi, S.; Kakinami, T.; Moriwaki, M.; Tanaka, T.; Fujisaki, S.; Okamoto, T. Bull. Chem. Soc. Jpn. 1989, 62, 439.
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The procedure as used in the preparation of 1,2-dibromo-3,4,5,6- tetramethylbenzene was followed: (a) Kajigaeshi, S.; Kakinami, T.; Moriwaki, M.; Tanaka, T.; Fujisaki, S.; Okamoto, T. Bull. Chem. Soc. Jpn. 1989, 62, 439.
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49
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33846920007
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See the Supporting Information for an ORTEP plot of dibromide 26
-
See the Supporting Information for an ORTEP plot of dibromide 26.
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