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2
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43449113556
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Lemal, D. M.; Ramanathan, S.; Shellito, J. J. Org. Chem. 2008, 73, 3392.
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Lemal, D.M.1
Ramanathan, S.2
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3
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70349859582
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version 7.0; Schrodinger, LLC: New York, Frequency calculations carried out on all transition states found a single negative frequency corresponding to motion along the reaction coordinate. Except where a larger basis set is indicated, calculations were performed at the B3LYP/6-31G** level of theory
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Jaguar, version 7.0; Schrodinger, LLC: New York, 2007. Frequency calculations carried out on all transition states found a single negative frequency corresponding to motion along the reaction coordinate. Except where a larger basis set is indicated, calculations were performed at the B3LYP/6-31G** level of theory.
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(2007)
Jaguar
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4
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0001852649
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An analogous reaction of hexafluorobenzene with ethylene glycol was carried out, see
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An analogous reaction of hexafluorobenzene with ethylene glycol was carried out, see: Burdon, J.; Damodaran, V. A.; Tatlow, J. C. J. Chem. Soc. 1964, 763.
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Burdon, J.1
Damodaran, V.A.2
Tatlow, J.C.3
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6
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0000978034
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Molina, V.; Merchan, M.; Roos, B. O. Spectrochem. Acta, Part A 1999, 55, 433.
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Molina, V.1
Merchan, M.2
Roos, B.O.3
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7
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70349847176
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The fact that the thermodynamic bias favoring dioxene formation over Diels-Alder addition is nearly the same for styrene and trans-stilbene (ΔΔH = 14.0 vs. 13.4 kcal/mol, respectively) supports the conclusion that steric effects are responsible for the dioxene from trans-stilbene. The thermodynamic bias is considerably greater for cis-stilbene (ΔH=18.5 kcal/mol), a reflection of steric hindrance in the (endo) Diels-Alder adduct, not just in the transition structure leading to it
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The fact that the thermodynamic bias favoring dioxene formation over Diels-Alder addition is nearly the same for styrene and trans-stilbene (ΔΔH = 14.0 vs. 13.4 kcal/mol, respectively) supports the conclusion that steric effects are responsible for the dioxene from trans-stilbene. The thermodynamic bias is considerably greater for cis-stilbene (ΔH=18.5 kcal/mol), a reflection of steric hindrance in the (endo) Diels-Alder adduct, not just in the transition structure leading to it.
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8
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70349866098
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An irc calculation for the endo transition structure smoothly connected starting materials with the adduct
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An irc calculation for the endo transition structure smoothly connected starting materials with the adduct.
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9
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84981778017
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Woodward, R. B.; Hoffmann, R. Angew. Chem., Int. Ed. Engl. 1969, 8, 781.
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Woodward, R.B.1
Hoffmann, R.2
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10
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40949135011
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For a discussion of other factors that may control endo/exo selectivity, see
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For a discussion of other factors that may control endo/exo selectivity, see: Lahiri, S.; Yadav, S.; Banerjee, S.; Patil, M. P.; Sunoj, R. B. J. Org. Chem. 2008, 73, 435.
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Lahiri, S.1
Yadav, S.2
Banerjee, S.3
Patil, M.P.4
Sunoj, R.B.5
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11
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0010851554
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Shteingarts, V. D.; Budnik, A. G.; Yakobson, G. G.; Vorozhtsov, N. N., Jr. Zh. Obsh. Khim. 1967, 37, 1537.
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Shteingarts, V.D.1
Budnik, A.G.2
Yakobson, G.G.3
Vorozhtsov Jr., N.N.4
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12
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70349873264
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Barthel, J.; Bustrich, R. German patent DE 19633027, 1988
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Barthel, J.; Bustrich, R. German patent DE 19633027, 1988.
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