Provide the reagents necessary to complete the following transformation

Question 1

Provide the reagents necessary to complete the following transformation

Question 2

Please provide the reagents required following reaction sequence. Show mechanism.

Question 3

Provide The Reagents Necessary To Complete The Following Transformation

Answer to question 1

The given reaction is designated as epoxidation reaction. In this reaction 1-ethylcyclopent-1-ene is converted to an epoxide or oxirane. The necessary reagent to accomplish this particular product is mCPBA (meta-chloroperoxybenzoic acid). It is an effective peroxy acid reagent which converts an alkene to its respective epoxide. So, the given reaction can be completed as follows,

Answer to question 2

The given reaction involves conversion of cyclohexanol to cyclohexene. This reaction is accomplished via dehydration reaction using phosphoric acid catalyst as follows,

The mechanism of this reaction involves two steps.

In the first step, a carbocation is formed through the elimination of H2OH2O molecule.

In the second step, a proton is removed from the carbocation yielding cyclohexene.

Answer to question 3

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