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AS Organic Chem Practical Question

Hi, so I'm just revising for my EOY, and I was going over the hydrolysis of halogenalkanes. I noticed that it said to dissolve in ethanol to increase the solubility of halogenalkane in the water/nucleophile solution. However, wouldn't adding the ethanol cause an elimination reaction?

Sorry if this is silly! I'm just wondering if there's a scientific reason why sometimes there's an elimination reaction, and sometimes there's not
Elimination is usually due to higher temperatures and higher concentrations of KOH/NaOH being used

To favour elimination you would need:
1.higher temperatures
2.a concentrated solution of sodium or potassium hydroxide
3.pure ethanol as the solvent

To favour substitution rather than elimination:
1.lower temperatures
2. dilute solutions of NaOH/KOH
3.more water in the solvent mixture(50/50 ethanol water)

feel free to correct if I’m wrong anyone but from what I can remember that should be it

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