16 Question (1 point) In the presence of sulfuric acid, this alcohol is dehydrated to form...
1. Alcohol [1] is added to an aqueous solution of sulfuric acid, H,SO4. The solution was then heated. The product was purified to determine its structure. It was found that the product was alkene [2]. Draw the mechanism of the reaction. Show all steps with curved arrows that are necessary to form the product alkene [2]. OH H 0H H heat [2] [1] Consider the following reaction. A. Draw the mechanism of the reaction to predict ALL constitutional products. Show...
Draw the mechansim of cyclopentanol reacting with the alcohol H2SO4 (sulfuric acid). Is it an E1 or E2 mechanism?
8) Th e substitution reaction below Time spent: does not work. Provide an explanation of what might be the problem. BrH Br: HO: 9) What could be changed above to allow the reaction to proceed to the 1-bromopropane product? Recall from lab that alcohols can be dehydrated to form alkenes by heating with a strong acid. This reaction follows an E1 mechanism (P, H, and Eg). Dehydration of alcohols H2SO4 heat Alcohol Alkene 10) Why is acid required for the...
Acid Catalyzed Hydration-treatment of alkenes with water in the presence of acid catalyst leads to the formation of alcohols. H2SO4/H2O > 150°C Mechanism Major Product Acid catalyzed dehydration goes through a carbocation intermediate. This means that the Markovnikov product is obtained when carbocation rearrangements do not occur. The need for excessively high temperatures makes this reaction of limited use in laboratory synthesis. Oxymercuration - Oxymercuration involves the addition of Hg to the alkene using mercury (II) acetate Hg(OAc) followed by...
1. Predict the products when 2-propanol is heated in the presence of sulfuric acid. 2. Write the correct IUPAC name for the following molecule Predict the products when 2-propanol is heated in the presence of sulfuric acid. click to edit он H2SO4 H20 CH—CHз НзС- heat Write the correct IUPAC name for the following molecule. Нзс CH2-OH -CH2-CH-CH-CH2 нс- CH2 CH2 Нзс CH3 CHз
For the dehydration shown, use curved arrows to show the formation of the carbocation intermediate in the presence of sulfuric acid H2SO4, then draw the structures of the minor and major products of the elimination.
1.Predict all the products for the following reaction. Which is the major product? Why? + conc. H2SO4 heat OH 2. Give an alcohol that you could use to synthesis each of the following alkenes? din 3.Draw the mechanisms for the following two schemes (two separate mechanisms). Only show the mechanism for the most stable product for each scheme. What is the key difference in the mechanistic steps between these two reactions? ОН ОН conc H2SO4 conc H2SO4 heat heat
Acid-catalyzed dehydration of secondary and tertiary alcohols proceeds through an E1 mechanism. The first step is the protonation of the alcohol oxygen to form an oxonium ion Dehydration of 3-methyl-2-butanol forms one major and two minor organic products. Draw the structures, including hydrogen atoms, of the three organic products of this reaction :он H3 3 CH3 an oxonium ion 3-methyl-2-butanol Major Product Minor Product Minor Product
Acid Catalyzed Hydration-treatment of alkenes with water in the presence of acid catalyst leads to the formation of alcohols. H2SO4/H20 > 150 °C Major Product Mechanism Acid catalyzed dehydration goes through a carbocation intermediate. This means that the Markovnikov product is obtained when carbocation rearrangements do not occur. The need for excessively high temperatures makes this reaction of limited use in laboratory synthesis.
What is Zaitsev’s rule? Give the mechanism for the acid-catalyzed E1 reaction of 2-butanol. Give the mechanism for the base-catalyzed E2 reaction of 2-bromobutane. Draw all possible products. You expect three products from the elimination reaction 2-butanol. What are they? The E2 mechanism is a one-step mechanism. True or False? Explain. Which of these two alcohols would you expect to be more reactive under H3PO4/aqueous conditions? Why? Give the structure of the main product in both cases. 1-phenyl-1-propanol 1 -cyclohexyl-1-propanol...