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Draw the two different alkenes that can form the following alcohol via acid-catalyzed hydration reactions that...
Be sure to answer all parts Report problem The following alcohol has been subjected to acid-catalyzed...
Be sure to answer all parts Report problem The following alcohol has been subjected to acid-catalyzed dehydration and yields a mixture of two isomeric alkenes. Draw the two alkenes, the major and the minor product as predicted by the Zaitsev rule. (CH3)2CCH(CH3)2 OH Major product: draw structure Minor product: draw structure
Acid Catalyzed Hydration-treatment of alkenes with water in the presence of acid catalyst leads to 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...
6. Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment...
6. Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4)? (a) 1 (b) 2 (c) 3 (d) 4 (e) None of the above 7. Which of the following statements is not true regarding pairs of enantiomers? (a) They have identical melting points (b) They have identical boiling points (c) They rotate plane polarized light in opposite directions (d) They react at identical rates with chiral reagents (e) All of the above...
questions 6, 7, and 8 please! :) ochem 6. The alcohol below can be made from two different alkenes via a hydroborati...
questions 6, 7, and 8 please! :) ochem
6. The alcohol below can be made from two different alkenes via a hydroboration/oxidation series, but one of the potential alkene starting materials isn't good because it produces 3 other isomers in addition to the compound below. Draw all 3 and indicate their relationship to the product below (i.e., enantiomers, diastereomers, etc.). OH 7. What is the product when cholesterol is subjected to hydroboration/oxidation conditions? 8. The compound below reacts differently under...
An acid anhydride reacts with an alcohol to form one ester and one carboxylic acid. An...
An acid anhydride reacts with an alcohol to form one
ester and one carboxylic acid. An unsymmetrical acid anhydride can
react with alcohol at either carbonyl carbon, so there are two
possible esters and two possible carboxylic acids.
Draw the structures of all possible organic products formed in the following reaction. Do not draw counterions or byproducts. CH3 OH CH3 НАС CH3 CH3 HO So
7. What alcohol(s) must be used to form each of the following ethers or alkenes on acid-catalyzed dehydration? Indi...
7. What alcohol(s) must be used to form each of the following ethers or alkenes on acid-catalyzed dehydration? Indicate the temperature (high or low) that should be used to maximize the yield of the desired product. Finally write the reaction. a. 1-butene b. cyclopentene c. 3-methyl-2-pentene
how does the mixture of isomeric alkenes produced by an acid-catalyzed dehydration reaction compare with the...
how does the mixture of isomeric alkenes produced by an
acid-catalyzed dehydration reaction compare with the alkene mixture
from a base-catalyzed dehydrochlorination reaction? Are either or
both sets or products influenced primarily by product
stability?
E1/E2 Elimination Reactions. Acid-Catalyzed Dehydration of 2-Me Base-Catalyzed Dehydrochlorination of 2-Chloro-2-methylbutane Acid-Catalyzed Dehydration of 2-Methyl-2-butanol and Adapted for an experiment published in More J.R - Hammond, C.N. Schatz, PF: Morrill, T.C.: Modern Projects and P. Hammond CN: Schatz, P.F., Morrill... Experiments in Organic Chemistry, 2nd...
Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov regiochemistry
Acid-catalyzed addition of water to an alkene yields an alcohol
with Markovnikov regiochemistry. The electrophilic H+ adds to the
sp^2 carbon with the most hydrogens to yield the most stable
carbocation intermediate, which then adds water to give the product
alcohol. To avoid the possibility of rearrangement and still give a Markovnikov alcohol, alkenes can instead be treated with mercury(II) acetate in aqucous THF and then subsequently reduced with sodium borohydride. This reaction proceeds through a cyclic mercurinium ion intermediate which...
Alkenes can be converted into alcohols by acid-catalyzed addition of water. Assuming that Markovnikov’s rule is...
Alkenes can be converted into alcohols by acid-catalyzed addition of water. Assuming that Markovnikov’s rule is valid, predict the major alcohol product from 3-methylenepentane. Do not consider stereochemistry. Remember to consider hydride and alkyl shifts.
CH3 CH3 1. Hg(OAC), H20 2. NaBH НО, І CH3 CH, Hoc H₃C/ Acid-catalyzed addition of...
CH3 CH3 1. Hg(OAC), H20 2. NaBH НО, І CH3 CH, Hoc H₃C/ Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov regiochemistry. The electrophilic H adds to the sp carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol. Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water. To avoid the possibility of rearrangement and still give a Markovnikov...
Be sure to answer all parts Report problem The following alcohol has been subjected to acid-catalyzed dehydration and yields a mixture of two isomeric alkenes. Draw the two alkenes, the major and the minor product as predicted by the Zaitsev rule. (CH3)2CCH(CH3)2 OH Major product: draw structure Minor product: draw structure
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...
6. Which of the following alkenes is most likely to undergo rearrangement upon acid-catalyzed hydration (treatment with aqueous H2SO4)? (a) 1 (b) 2 (c) 3 (d) 4 (e) None of the above 7. Which of the following statements is not true regarding pairs of enantiomers? (a) They have identical melting points (b) They have identical boiling points (c) They rotate plane polarized light in opposite directions (d) They react at identical rates with chiral reagents (e) All of the above...
questions 6, 7, and 8 please! :) ochem
6. The alcohol below can be made from two different alkenes via a hydroboration/oxidation series, but one of the potential alkene starting materials isn't good because it produces 3 other isomers in addition to the compound below. Draw all 3 and indicate their relationship to the product below (i.e., enantiomers, diastereomers, etc.). OH 7. What is the product when cholesterol is subjected to hydroboration/oxidation conditions? 8. The compound below reacts differently under...
An acid anhydride reacts with an alcohol to form one
ester and one carboxylic acid. An unsymmetrical acid anhydride can
react with alcohol at either carbonyl carbon, so there are two
possible esters and two possible carboxylic acids.
Draw the structures of all possible organic products formed in the following reaction. Do not draw counterions or byproducts. CH3 OH CH3 НАС CH3 CH3 HO So
7. What alcohol(s) must be used to form each of the following ethers or alkenes on acid-catalyzed dehydration? Indicate the temperature (high or low) that should be used to maximize the yield of the desired product. Finally write the reaction. a. 1-butene b. cyclopentene c. 3-methyl-2-pentene
how does the mixture of isomeric alkenes produced by an
acid-catalyzed dehydration reaction compare with the alkene mixture
from a base-catalyzed dehydrochlorination reaction? Are either or
both sets or products influenced primarily by product
stability?
E1/E2 Elimination Reactions. Acid-Catalyzed Dehydration of 2-Me Base-Catalyzed Dehydrochlorination of 2-Chloro-2-methylbutane Acid-Catalyzed Dehydration of 2-Methyl-2-butanol and Adapted for an experiment published in More J.R - Hammond, C.N. Schatz, PF: Morrill, T.C.: Modern Projects and P. Hammond CN: Schatz, P.F., Morrill... Experiments in Organic Chemistry, 2nd...
CH3 CH3 1. Hg(OAC), H20 2. NaBH НО, І CH3 CH, Hoc H₃C/ Acid-catalyzed addition of water to an alkene yields an alcohol with Markovnikov regiochemistry. The electrophilic H adds to the sp carbon with the most hydrogens to yield the most stable carbocation intermediate, which then adds water to give the product alcohol. Because a carbocation intermediate is formed, rearrangements can occur prior to the addition of water. To avoid the possibility of rearrangement and still give a Markovnikov...
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