Which of the following statements is true? The more stable alkene product is formed in the dehydration of alcohols (Zaitsev’s rule). A primary alcohol can rearrange during dehydration. Pi electrons from the pi bond of initial alkene are used to form the secondary or tertiary carbocation intermediate. All of the above

Which of the following statements is true? The more stable alkene product is formed in the dehydration of alcohols (Zaitsev’s rule). A primary alcohol can rearrange during dehydration. Pi electrons from the pi bond of initial alkene are used to form the secondary or tertiary carbocation intermediate. All of the above

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter19: Eas: Electrophilic Aromatic Substitution

Section: Chapter Questions

Problem 7E: When toluene is treated with sulfuric and nitric acids under special conditions, three nitro (NO2)...

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Which one of the statements below is wrong about Zaitsev’s Rule. a. None of the above b. The Zaitsev’s Rule demonstrate the principle of regioselectivity in elimination reactions c. The more substituted alkene is the major product of E1 or E2 elimination d. The more substituted alkane product is obtained when a proton is removed from β-carbon that is bonded to the fewest hydrogens e. The most stable alkene is generally the major product
What are the reaction mechanisms and the correctly drawn internal alkyne for the wanted intermediate structure?
The cyclic reactive intermediate produced in the addition of a halogen molecule to an alkene _______. is positively charged is a three-membered ring contains a single halogen all of these none of these
Give the major organic product of the following reaction (don't forget stereochem). Then assign the type of reaction (either addition, elimination, substitution, or rearrangement).
Which of the following statements is not correct? Oxymercuration-demercuration for alcohol synthesis is complicated by carbocation rearrangement. Oxymercuration-demercuration for alcohol synthesis follows Markonikov's Rule. Sodium borohydride is used in the last step of oxymercuration-demercuration to oxidize the hydroxyalkyl mercury compound. All of the above. Both the 1st and the 3rd statements.
Curved arrows are used to illustrate the flow of electrons. Follow the arrows to predict the reactant and product of reaction. Include all lone pairs. Use wedges and dashes to indicate stereochemistry. Ignore inorganic byproducts.
Based on the images attached, choose the alkene product formed for the following reaction and predict the major and minor compounds.
Which of the following statements is correct? Acid-catalyzed hydration of an alkene does not undergo carbocation rearrangement. Acid-catalyzed hydration of an alkene follows Markonikov's Rule. In Markonikov's Rule, H adds to carbon atom with less H atoms. Alkanes can also undergo acid-catalyzed hydration to produce diols. None of the above. Both the 2nd and the 4th statements.
The conversion of alcohols into alkyl halides by reaction with hydrogen halides is an example of a Nucleophilic Substitution Reaction. This kind of reaction can proceed by two different mechanisms depending on the structure of alcohol substrates used. Generally, primary alcohols are substituted via SN2 mechanism, while secondary and tertiary alcohols undergo SN1 mechanism. Consider the following reaction given in the picture below and the questions in the picture too.
- For the dehydration shown, use curved arrows to show the formation of the carbocation intermediate in the presence of sulfuric acid H2SO4H2SO4, then draw the structure of the major product of the elimination. (Picture 1): Step 1: Use curved arrows to complete the protonation mechanism of the alcohol. Step 2: Use a curved arrow to show the formation of the carbocation intermediate. Note: HSO−4HSO4− is formed from step 1, but not shown. (Picture 2): Step 3: Use a curved arrow to show the carbocation rearrangement. Step 4: Draw curved arrows to show the elimination to form the major product. Water is added as a base. - Draw the major product of the elimination. H3O+H3O+ has been pre‑drawn for your convenience.
A. Without the use of H2 reductions or PCC oxidation fill in the blank steps of the reactions. Final products should be the major organic product.
Write the appropriate reaction mechanism for the formation of the most stable alkene that will occur as a result of the reactions given below.