(a)
Interpretation:
A reasonable mechanism for the given pinacol rearrangement reaction is to be proposed.
Concept introduction:
The unimolecular elimination (
(b)
Interpretation:
The reason for the carbocation rearrangement for the given reaction is to be explained.
Concept introduction:
In the carbocation rearrangement, the carbocation gains significant stability from resonance delocalization of the charge. Resonance can provide substantial charge stability.
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EBK ORGANIC CHEMISTRY: PRINCIPLES AND M
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- Please provide a complete, detailed curved-arrow mechanism for the following reaction.Include ALL lone pairs and formal charges. Using the mechanism and a few words,explain the why the NaH deprotonates at the selected a-position and not the other a-position. Also explain why the indicated alkene is formed in the 3rd step rather than the other possible alkene product.arrow_forward(a) Identify the major product of the following reaction. (b) Explain why the other product is not the major product.arrow_forward18.56 Predict the major organic product and draw the complete, detailed mechanism for each of the following reactions. (a) (b) OH OH (c) HO ? OH HO ? HO HO OH HO ?arrow_forward
- (1) Identify the nucleophile and electrophile for each step (2) Provide the mechanism using curved arrows (3) Then identify which elementary step it isarrow_forwardDraw the complete, detailed mechanism for each of the following reactions and predict the major product. NaOEt? (a) Ethyl 3-methylbutanoate ETOH NaOEt (b) Ethyl propanoate + Ethyl benzoate ? ELOH NaOEt (c) Ethyl butanoate + Diethyl carbonate ? ETOHarrow_forward(A) Which is an alkyl iodide that will give SN1 and E1 product? (B) Which is most likely to give rearrangement product in SN1?arrow_forward
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