Organic Chemistry
Propose a mechanism for the acid-catalyzed dehydration of alcohol shown below.
The following reaction shows acid-catalyzed dehydration of an alcohol. Indicate how could the equilibrium of this reaction be shifted to the right.
The following reaction shows acid-catalyzed dehydration of an alcohol. Indicate how can the equilibrium of this reaction be shifted to the left.
Predict the structure of the alcohol that would yield the following alkene without rearrangement.
When HCl was used to perform the dehydration reaction of an alcohol, the desired product was not formed. Identify the product that was actually formed in this reaction.
Predict the major product formed in the following dehydration reaction.
Identify the alcohol that can be dehydrated to form the following alkene through carbocation rearrangement.
Identify the alcohol that can be dehydrated to form the following alkene without carbocation rearrangement.
Draw a mechanism for the reaction shown below.
Give the major products formed by dehydration of the given alcohols through sulfuric acid.
Show the products of the following acid-catalyzed dehydration reactions. Also, label them as major and minor.
When the following compound is heated in presence of H2SO4, what constitutional isomer is formed as the major product? Indicate whether the product has any stereoisomers.
Predict the major product formed when the given compound is heated with H2SO4.
Draw the structure of the major product obtained when the given compound is heated with H2SO4.
Draw the major product in the reaction given below.
Provide two different reagents to carry out the following reaction.
Illustrate the mechanism of the given reaction:
When 3,3,5-trimethyl-2-hexanol and 2,3,5-trimethyl-2-hexanol are heated with H 2SO4, they both undergo dehydration to produce 2,3,5-trimethyl-2-hexene. Which of the two alcohols dehydrates faster?
Three alkenes are produced when the following seven-membered ring alcohol is dehydrated. Propose a mechanism to explain how they are formed.
Why do the following alcohols form two similar alkenes when heated with acid?
In the acid-catalyzed dehydration of 1-heptanol to 2-heptene, determine the stereoisomers formed and which of them would be the major product.
The dehydration of alcohols by acids is reversible, while the dehydrohalogenation of alkyl halides by bases is irreversible. Elucidate.
Provide the possible mechanism for the given reaction.
Provide a suitable mechanism for the reaction given below.
Show a suitable mechanism for the reaction given below.
Draw a suitable mechanism for the reaction given below.
Propose the major products expected from the sulfuric acid-catalyzed dehydration reactions of the following alcohols. Also. draw a mechanism to show the product formation.
Provide a suitable mechanism for the formation of major products in the following reaction.
Show the major products for acid-catalyzed dehydration of the following alcohols.
E1 elimination reactions of alkyl halides usually give a mixture of substitution and elimination products which is why these are not commonly used for synthetic purposes.On the other hand, the sulfuric acid-catalyzed dehydration of cyclopentanol gives a good yield of cyclopentene although it follows the same E1 mechanism. Explain why this reaction does not give substitution products.
Using 2-methyl-1-phenylpropan-1-ol and any other suitable reagents and solvents as starting material, show how (2-methylprop-1-en-1-yl)benzene can be synthesized.
