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26 gru 2015 · trans-1,3-Di-t-butylcyclohexane | C14H28 | CID 102445542 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
4 gru 2007 · Di-1,3-tert-butylcyclohexane | C14H28 | CID 17769407 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Cis-1,4-Di-tert-butylcyclohexane has an axial tert-butyl group in the chair conformation and conversion to the twist-boat conformation places both groups in more favorable equatorial positions. As a result, the twist-boat conformation is more stable by 0.47 kJ/mol (0.11 kcal/mol) at 125 K (−148 °C) as measured by NMR spectroscopy .
The ring-flipped conformation has an axial methyl group at C1, which has 1,3-diaxial interactions with hydrogens on C3 and C5. In addition, both conformations have gauche butane interactions between the two methyl groups.
Objective. After completing this section, you should be able to use conformational analysis to determine the most stable conformation of a given disubstituted cyclohexane. Key Terms. Make certain that you can define, and use in context, the key term below. conformational analysis. Study Notes.
23 lip 2014 · If we make a model of the trans-1,2-di-t-butylcyclohexane, we see that the two tertiary butyl groups aren’t bumping onto each other. Rather, they’re pointing away from one another. So, shouldn’t the conformer be more stable than the cis conformer?
Consider 1,4-di-tert-butylcyclohexane. What is the most stable conformation of this molecule? You might notice that both conformations have one tBu group axial and the other equatorial.
