Organic Chemistry
9th Edition
ISBN: 9781305080485
Author: John E. McMurry
Publisher: Cengage Learning
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Chapter 8.1, Problem 1P
Interpretation Introduction
Interpretation:
Given that treatment of 2-bromo-2-methylbutane with KOH in ethanol yields a mixture of two
Concept introduction:
In dehydrohalogenation reactions removal of hydrogen halide takes place. The hydrogen is usually removed from the carbon adjacent to the carbon bearing the halogen (from β carbon). If the
To give:
The likely structures of the two alkenes that result when 2-bromo-2-methylbutane react with KOH in ethanol.
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Arrow-pushing Instructions
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Hö:
H-O
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-CH3
H30*
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Chapter 8 Solutions
Organic Chemistry
Ch. 8.1 - Prob. 1PCh. 8.1 - How many alkene products, including E,Z isomers,...Ch. 8.2 - Prob. 3PCh. 8.2 - Addition of HCl to 1, 2-dimethylcyclohexene yields...Ch. 8.3 - Prob. 5PCh. 8.3 - Prob. 6PCh. 8.4 - Prob. 7PCh. 8.4 - From what alkenes might the following alcohols...Ch. 8.5 - Prob. 9PCh. 8.5 - What alkenes might be used to prepare the...
Ch. 8.5 - Tho following cycloalkene gives a mixture of two...Ch. 8.6 - Prob. 12PCh. 8.7 - Prob. 13PCh. 8.7 - Starting with an alkene, how would you prepare...Ch. 8.8 - Prob. 15PCh. 8.8 - Prob. 16PCh. 8.9 - What products would you expect from the following...Ch. 8.10 - Prob. 18PCh. 8.10 - Prob. 19PCh. 8.13 - Prob. 20PCh. 8.13 - What products are formed from hydration of...Ch. 8.SE - Name the following alkenes, and predict the...Ch. 8.SE - Prob. 23VCCh. 8.SE - Prob. 24VCCh. 8.SE - Prob. 25VCCh. 8.SE - Prob. 26MPCh. 8.SE - Prob. 27MPCh. 8.SE - Draw the structures of the organoboranes formed...Ch. 8.SE - Prob. 29MPCh. 8.SE - Provide the mechanism and products for the...Ch. 8.SE - Propose a curved-arrow mechanism to show how ozone...Ch. 8.SE - Prob. 32MPCh. 8.SE - Prob. 33MPCh. 8.SE - Prob. 34MPCh. 8.SE - 10-Bromo- α -chamigrene, a compound isolated from...Ch. 8.SE - Isolated from marine algae, prelaureatin is...Ch. 8.SE - Dichlorocarbene can be generated by heating sodium...Ch. 8.SE - Reaction of cyclohexene with mercury(II) acetate...Ch. 8.SE - Use your general knowledge of alkene chemistry to...Ch. 8.SE - Prob. 40MPCh. 8.SE - Hydroboration of 2-methyl-2-pentene at 25°C,...Ch. 8.SE - Prob. 42APCh. 8.SE - Suggest structures for alkenes that give the...Ch. 8.SE - Prob. 44APCh. 8.SE - Prob. 45APCh. 8.SE - Prob. 46APCh. 8.SE - Prob. 47APCh. 8.SE - Predict the products of the following reactions....Ch. 8.SE - Prob. 49APCh. 8.SE - How would you carry out the following...Ch. 8.SE - Draw the structure of an alkene that yields only...Ch. 8.SE - Show the structures of alkenes that give the...Ch. 8.SE - Prob. 53APCh. 8.SE - Which of the following alcohols could not be made...Ch. 8.SE - Prob. 55APCh. 8.SE - Prob. 56APCh. 8.SE - Prob. 57APCh. 8.SE - Compound A has the formula C10HI6. On catalytic...Ch. 8.SE - Prob. 59APCh. 8.SE - Prob. 60APCh. 8.SE - Prob. 61APCh. 8.SE - Draw the structure of a hydrocarbon that absorbs 2...Ch. 8.SE - Prob. 63APCh. 8.SE - The sex attractant of the common housefly is a...Ch. 8.SE - Prob. 65APCh. 8.SE - Prob. 66APCh. 8.SE - α-Terpinene, C10H16, is a pleasant-smelling...Ch. 8.SE - Prob. 68APCh. 8.SE - Prob. 69APCh. 8.SE - Prob. 70APCh. 8.SE - Prob. 71APCh. 8.SE - Prob. 72AP
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- A problem often encountered in the oxidation of primary alcohols to acids is that esters are sometimes produced as by-products. For example, oxidation of ethanol yields acetic acid and ethyl acetate: Propose a mechanism to account for the formation of ethyl acetate. Take into account the reversible reaction between aldehydes and alcohols:arrow_forwardCompound A is an alkyne that reacts with two equivalents of H2 in the presence of Pd to give 2,4,6-trimethyloctane. Draw the structure of compound A.arrow_forwardBromine reacts with alkenes in methanol according to the equation when this reaction was carried out with 4-tert-butylcyclohexene, only one isomer was formed with the molecular formula C12H23BrO (80% yield). Which of the following is the structure more reasonable for this compound? Explain your reasoning through a corresponding mechanism.arrow_forward
- Draw the structures of two alkenes that would react to form the haloalkane below upon addition of HBr. Your alkenes should be different regioisomers that yield the haloalkane as the major product without requiring rearrangement to occur.arrow_forwardWhat reaction conditions are needed to convert (R)-2-ethyl-2-methyloxirane to (S)-2- methylbutane-1,2-diol ?arrow_forward3-Chloro-2-methylpropene reacts with sodium methoxide in methanol to form 3-methoxy-2-methylpropene. For each of the following changes in the reaction conditions, state whether the reaction rate would increase, decrease, or remain the same. Explain your reasoning. In some cases the identity of the major organic product would be expected to change; in such cases, give the expected major product. (a) the same quantities of reagents are dissolved in half the volume of methanol (b) 3-bromo-2-methylpropene is used in place of 3-chloro-2-methylpropene (c) sodium methanethiolate (CH3SNa) is used in place of of sodium methoxidearrow_forward
- An optically active monoterpene (compound A) with molecular formula C10H18O undergoes catalytic hydrogenation to form an optically inactive compound with molecular formula C10H20O (compound B). When compound B is heated with acid, followed by reaction with O3 and then with dimethyl sulfide, one of the products obtained is 4-methylcyclohexanone. Give possible structures for compounds A and B.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_forwardWhen 2-chloropropane treated with NaOH and 1-chloropropane treated with NaOH separately produce two different functional groups. Provide both reactions and explain the two different functional groups produced.arrow_forward
- Hydroboration-oxidation of 2-pentyne gives a mixture of two ketones, each with the molecular formula C5H10O. Propose structural formulas of these two ketones. Explain your proposal.arrow_forwardAlkenes 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_forwardDraw the organic product obtained on treatment of each of the following two alkenes with bromine: (a) trans-2-pentene and (b) 1- methylcyclohexene. Having done this, draw the product of the reaction of these same alkenes with bromine in aqueous solution.arrow_forward
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