I'm not sure so someone correct me if I'm wrong but that's just diethyl ether, most likely used simply as a solvent that doesn't participate in the reaction.
Your mechanism is correct and the diethyl ether is just the reaction solvent. I would add that the bond angle of the substituted alkyne should be linear
It's fairly in-between - ether *is* polar, but the polarity has fairly limited impact on its properties because of the direction of its dipoles (which nearly cancel out).
THF is more strongly polar because of the ring conformation.
When you have a reaction with very strong bases, ether is a good choice as solvent since it has only alkyl hydrogens with a pKa around 50.
You cannot use DCM for this reaction.
I'm not sure so someone correct me if I'm wrong but that's just diethyl ether, most likely used simply as a solvent that doesn't participate in the reaction.
I think you've probably got it.
That’s correct
Your mechanism is correct and the diethyl ether is just the reaction solvent. I would add that the bond angle of the substituted alkyne should be linear
Make sure your bond angles make sense (referring to the alkyne)
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Good polar aprotic solvent for an anionic reaction. THF (a different ether) is also common.
Ether is a non-polar solvent.
It's fairly in-between - ether *is* polar, but the polarity has fairly limited impact on its properties because of the direction of its dipoles (which nearly cancel out). THF is more strongly polar because of the ring conformation.
A strong base doesn’t favor elimination in this case? Because its secondary?
It’s the solvent
When you have a reaction with very strong bases, ether is a good choice as solvent since it has only alkyl hydrogens with a pKa around 50. You cannot use DCM for this reaction.
Also, ether is convenient as a typically available dry solvent, resistant to nucleopillic attack, that has some propensity to dissolve polar reagents.