(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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Organic Chemistry: Principles and Mechanisms (Second Edition)
- 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_forwardComplete the following reaction by drawing the major product expected in the box, and offer a detailed mechanism to explain its formation.arrow_forwardGive a clear handwritten mechanism and product for given below Sn2 reaction..a reaction shows all bonds ,lone pairs and arrows...?arrow_forward
- Provide mechanism for each of the following transformationarrow_forwardDraw a detailed mechanism for the following reaction and include the major productarrow_forwardPlease provide a detailed mechanism for the following transformation. Also, show the appropriate curved arrows to rationalize the next step. The quality of the electron pushing counts.arrow_forward
- They following reaction illustrate ?arrow_forwardThe above reaction proceeds to yield only a single product. Draw the structure(s) of the carbocation intermediate, including resonance contributors, to show why this is the case.arrow_forwardWhich of the following carbocations would be to rearrange? Why?arrow_forward
- Give two possible [1,2]-rearrangement products where an alkyl group migrates in the following compound. Motivate also which of the two products will be formed preferentiallyarrow_forwardProvide a detailed mechanism for the followingarrow_forwardWhat is the complete mechanism using curved arrow formalism of the two products shown below? Explain why one is major and the other is minor product formation.arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning