Which Will Undergo Faster Williamson Ether Synthesis?

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Discussion Overview

The discussion revolves around the factors influencing the rate of Williamson ether synthesis for two specific compounds: 3-Chlorobutan-1-ene and 1-Bromobutane. Participants explore the mechanisms involved, specifically whether the reaction proceeds via SN1 or SN2 pathways, and the implications of these mechanisms on the reaction rates.

Discussion Character

  • Homework-related
  • Debate/contested
  • Technical explanation

Main Points Raised

  • One participant suggests that 3-Chlorobutan-1-ene may undergo faster synthesis due to the formation of a stable carbocation via an SN1 mechanism.
  • Another participant questions whether the mechanism is SN1 or SN2 and asks about the important factors for such reactions.
  • A different participant proposes that the mechanism depends on the reactants and mentions factors like the driving force of the stabilized carbocation for SN1 and steric factors and bond strength for SN2.
  • One participant asserts that the Williamson ether synthesis always follows the SN2 mechanism, implying that 1-Bromobutane would be the faster option.
  • Another participant agrees that using an SN1 mechanism could lead to competition from E1 products, suggesting that this complicates the reaction pathway.

Areas of Agreement / Disagreement

Participants express differing views on the mechanism of Williamson ether synthesis, with some advocating for SN1 and others for SN2. The discussion remains unresolved regarding which compound will undergo faster synthesis.

Contextual Notes

Participants reference the importance of reactant structure and bond strengths but do not reach a consensus on the mechanisms or the implications for reaction rates.

Suraj M
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Homework Statement


Which will undergo faster Williamson ether syntehsis
It was either faster or better, I'm not sure

A)3-Chlorobutan-1-ene
B)1-Bromobutane

Homework Equations

The Attempt at a Solution


I thought option A because of its alylic position it will form a stable carbocation (and through SN1)
Is it correct? Or is it B because bromine is more weakly bound to the primary carbon

Thank you :-)
 
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What mechanism is involved in Williamson ether synthesis, SN1 or SN2? What factors are most important for reactions of that type?
 
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The mechanism depends on the reactants right?
What factors? I'd say driving force of the stabilized carbocation if it's SN1 else steric factor and strength of the CX bond for SN2?
Is that right?
 
Suraj M said:
The mechanism depends on the reactants right?
You should double check what your text says about the mechanism of Williamson ether synthesis.
 
Last edited:
Oh always SN2?
Then in that case it's option B right?
 
Yes. If you were to try to form an ether via an SN1 reaction, you would probably have too much competition from the E1 product.
 
Ah okay
Thanks Ygggrasil ! :-)
 

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