Organic Chemistry
6th Edition
ISBN: 9781936221349
Author: Marc Loudon, Jim Parise
Publisher: W. H. Freeman
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Chapter 17, Problem 17.56AP
Interpretation Introduction
Interpretation:
The reason for the variation in the stereochemistry of addition as the alkene structure varied is to be stated.
Concept introduction:
Addition of halogens into
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1) The carbon-oxygen double bond present in aldehydes and ketones is very polar. What does this mean and how does it arise?
2) The carbon-oxygen double bond is readily attacked by nucleophiles like cyanide ions or ammonia.
(i) What do you understand by the term nucleophile?
(ii) Which part of the carbon-oxygen double bond is attractive to nucleophiles?
3) Why is there a difference between aldehydes and ketones in their response to oxidizing agents such as potassium dichromate(VI) solution acidified with dilute sulfuric acid?
The rate law for addition of Br2Br2 to an alkene is first order in Br2Br2 and first order in the alkene. Does this information suggest that the mechanism of addition of Br2Br2 to an alkene proceeds in the same manner as for addition of HBr? Explain.
4-methyl-3-hexanol was prepared by reacting an alkene with either hydroboration-oxidation or oxymercuration-reduction.
Draw the structure of the alkene that was used to prepare the alcohol in highest yield.
• You do not have to consider stereochemistry.
• Indicate the method of preparation by drawing either BH3 (for
. If there is more than one alkene that can be used for a given method, draw all of them.
If either hydroboration-oxidation or oxymercuration-reduction can be used, just give the structures for one method.
Separate structures with + signs from the drop-down menu.
●
981
--
26224
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ChemDoodle
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hydroboration-oxidation), or Hg (for oxymercuration-reduction), in a separate sketcher.
Sn [1
Chapter 17 Solutions
Organic Chemistry
Ch. 17 - Prob. 17.1PCh. 17 - Prob. 17.2PCh. 17 - Prob. 17.3PCh. 17 - Prob. 17.4PCh. 17 - Prob. 17.5PCh. 17 - Prob. 17.6PCh. 17 - Prob. 17.7PCh. 17 - Prob. 17.8PCh. 17 - Prob. 17.9PCh. 17 - Prob. 17.10P
Ch. 17 - Prob. 17.11PCh. 17 - Prob. 17.12PCh. 17 - Prob. 17.13PCh. 17 - Prob. 17.14PCh. 17 - Prob. 17.15PCh. 17 - Prob. 17.16PCh. 17 - Prob. 17.17PCh. 17 - Prob. 17.18PCh. 17 - Prob. 17.19PCh. 17 - Prob. 17.20PCh. 17 - Prob. 17.21PCh. 17 - Prob. 17.22APCh. 17 - Prob. 17.23APCh. 17 - Prob. 17.24APCh. 17 - Prob. 17.25APCh. 17 - Prob. 17.26APCh. 17 - Prob. 17.27APCh. 17 - Prob. 17.28APCh. 17 - Prob. 17.29APCh. 17 - Prob. 17.30APCh. 17 - Prob. 17.31APCh. 17 - Prob. 17.32APCh. 17 - Prob. 17.33APCh. 17 - Prob. 17.35APCh. 17 - Prob. 17.36APCh. 17 - Prob. 17.37APCh. 17 - Prob. 17.38APCh. 17 - Prob. 17.39APCh. 17 - Prob. 17.40APCh. 17 - Prob. 17.41APCh. 17 - Prob. 17.42APCh. 17 - Prob. 17.43APCh. 17 - Prob. 17.44APCh. 17 - Prob. 17.45APCh. 17 - Prob. 17.46APCh. 17 - Prob. 17.47APCh. 17 - Prob. 17.48APCh. 17 - Prob. 17.49APCh. 17 - Prob. 17.50APCh. 17 - Prob. 17.51APCh. 17 - Prob. 17.52APCh. 17 - Prob. 17.53APCh. 17 - Prob. 17.54APCh. 17 - Prob. 17.55APCh. 17 - Prob. 17.56APCh. 17 - Prob. 17.57APCh. 17 - Prob. 17.58APCh. 17 - Prob. 17.59AP
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- 5) Compound A reacted with Mg in ether to give B. Compound B is with Ethyl bromide to give Ethyl cyclohexane. What are the structures of A and B?arrow_forwardWhich of the following is true for the reactions of alkyl halides? (a) The characteristic reactions of alkyl halides are oxidation and reduction.(b) The characteristic reactions of alkyl halides are elimination and substitutionc. The characteristic reactions of alkyl halides are addition and substitutiond. Characteristic reactions of alkyl halides are addition and elimination.arrow_forwarda) When (Z)-3-methylhex-3-ene undergoes hydroboration–oxidation, two isomeric products are formed. Give their structures, and label each asymmetric carbon atom as (R) or (S). What is the relationship between these isomers?arrow_forward
- Alkenes can be hydrated to form alcohols by (1) hydroboration followed by oxidation with alkaline hydrogen peroxide and (2) acid-catalyzed hydration. Compare the product formed from each alkene by sequence (1) with those formed from (2). Q.)1-Methylcyclohexenearrow_forwardBromine reacts with alkenes in methanol according to the equation (see image 1). When this reaction was carried out with 4-tert-butylcyclohexene, only one isomer was formed with the molecular formula C12H23BrO (80% yield) a) Which of the following is the structure more reasonable for this compound? (see image 2) b) Explain your reasoning through a corresponding mechanismarrow_forwardThe heat of hydrogenation of cis-2,2,5,5-tetramethyl-3-hexene is -154 kJ (-36.7 kcal)/ mol, while that of the trans isomer is only -113 kJ (-26.9 kcal)/mol. Q.) If a catalyst could be found that allowed equilibration of the cis and trans isomers at room temperature (such catalysts do exist), what would be the ratio of trans to cis isomers?arrow_forward
- The rate law for addition of Br2 to an alkene is first orderin Br2 and first order in the alkene. Does this informationsuggest that the mechanism of addition of Br2 to analkene proceeds in the same manner as for addition of HBr?Explain.arrow_forwardThe rate law for addition of Br2 to an alkenes is first order in Br2 and first order in the alkene. Does this information suggest that the mechanism of addition of Br2 to an alkene proceeds in the same matter as for addition of HBr? Explain.arrow_forwardThe 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.arrow_forward
- Provide the systematic name for each of the following isomeric esters with the chemical formula C-H1202. (Be sure to indicate double bond stereochemistry using (E)/(Z) notation. Indicate stereochemistry in rings with the terms cis or trans. It is not necessary to use italics in writing compound names.) ball & stick labels ball & stick labels ball & stick + labelsarrow_forwardThe Friedel-Crafts Alkylation of p-xylene n-propyl bromide can result in an isopropyl as well as n-propyl substitution. A) Write the chemical equation involved in this reaction. B) Which will be the major and minor product? What do you expect will be the ratio of n-propyl to isopropyl substitution for p-xylene?arrow_forwardWrite the reaction of bromine addition to an alkene on an example and the mechanism.arrow_forward
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