glycosidic conformation: anti vs syn - figure 29-8 viii.sugar ring pucker: 4 out of 5 ring atoms are nearly planar the 5th atom is usually the C-2 or C-3 atom endo vs exo d. real DNA deviates
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Diels–Alder reaction - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Diels%E2%80%93Alder_reaction
There is only one limitation: it must be able to exist in the s-cis conformation. ... The same reaction with aluminium chloride results in an endo and exo mixture. |
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Carbohydrate conformation - Wikipedia, the free encyclopedia
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conformations coupled with unusual C3'-exo/C4'-endo sugar ring conformations. The inactive compounds, 2',3'-dideoxy- uridine and 3'-(propyl-2-ene)-2' ...
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... E, Z; Eclipsed, Eclipsing; Eclipsing Conformation; Eclipsing Strain; Element of ... endo, exo, syn, anti; ent; Envelope Conformation; Epimerisation; Epimers; ...
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With one exception, these have very similar values which are close to 120 kJ tool -~. The C2'-exo/C3'- endo conformation has a far higher value of 240 kJ mol -~.
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Cyclohexane conformations .... Diels-Alder. Endo and exo adducts ... and maleic anhydride can produce two possible products, the 'endo' and the 'exo' adducts.
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that this process showing a lower energy barrier corresponds to the endo-endo F ? endo-exo conformational equilibrium. Molecular models confirm that the ...
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The stabilization of the exo ring pucker over the endo ring pucker increases the population of the trans conformation, while the stabilization of the endo ring ...
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The results obtained show that for the uncatalyzed reaction, the endo/exo selectivity mainly depends on the conformation of the dienophile in the TS, and ...
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