…For our purposes these conditions can be considered to be equivalent. Here are some examples of the Fischer esterification. Notice in this reaction that we form a new C-O bond…
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Read more…K we can calculate the energy difference, which turns out to be 1.70 kcal/mol. The next logical question is this. What’s the energy difference for other groups? For example, what…
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Read more…The two chair forms of cyclohexane itself are completely indistinguishable, but this is not true in most cases. For example, in 1-methylcyclohexane, one chair conformer has an axial methyl group,…
Read moreDescription: Treatment of diazonium salts with various reagents leads to formation of a new bond to the aromatic ring and loss of nitrogen (N2). The rest of this page is…
Read more…complex 1H NMR spectrum. At low temperatures interconversions are slow; the chemical shifts of the axial and equatorial protons are resolved, and complex spin-spin couplings occur. At -100 °C, however,…
Read more…to be the most completely idiot-proof way to draw a chair, by first drawing a parallelogram (something you should already know how to do). Using this as the “base” of…
Read more…however, it gives a very complex 1H NMR spectrum. At low temperatures interconversions are slow; the chemical shifts of the axial and equatorial protons are resolved, and complex spin-spin couplings…
Read more…into trans diols. The fourth example is an intramolecular example of epoxide opening; deprotonation of the alcohol gives an alkoxide, which then attacks the epoxide to form a new five-membered…
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