ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
10th Edition
ISBN: 9781259972348
Author: Carey
Publisher: MCG CUSTOM
expand_more
expand_more
format_list_bulleted
Question
Chapter 9, Problem 35P
Interpretation Introduction
Interpretation:
The compounds is to be chosen out of the given compounds for the synthesis of
Concept Introduction:
Acetylene forms its conjugate base in presence of a strong base like sodium amide.
Reaction of this acetylide anion with
If the alkyl halides are secondary or tertiary, instead of substitution, elimination reaction takes place.
Double dehydrohalogenation of either vicinal or geminaldihalides also produces alkynes.
This reaction occurs in the presence of excess sodium amide.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
(1) Predict the outcome of the addition of HBr to (a) trans-2-pentene, (b) 2-methyl-2-butene, and (c) 4-methylcyclohexene. How many isomers can be formed in each case?
(2) Addition of HBr to 3,3-dimethyl-1-butene gives a mixture of two isomeric alkyl bromide products. Draw structures for the two products, and give a mechanistic explanation for their formation.
Acid-catalyzed dehydration of 3,3-dimethyl-2-butanol gives three alkenes: 2,3-dimethyl-2-butene, 3,3-dimethyl-
1-butene, and 2,3-dimethyl-1-butene. Draw the structure of the carbocation intermediate leading to the
formation of 2,3-dimethyl-2-butene.
• You do not have to consider stereochemistry.
• You do not have to explicitly draw H atoms.
• If more than one structure fits the description, draw them all.
• Separate structures with + signs from the drop-down menu.
/
H₂C
CH₂
CH3
CH3
ChemDoodleⓇ
On []
Acid-catalyzed dehydration of 3,3-dimethyl-2-butanol gives three alkenes: 2,3-dimethyl-2-butene, 3,3-dimethyl-1-butene, and 2,3-dimethyl-1-
butene. Draw the structure of the carbocation intermediate leading to the formation of 2,3-dimethyl-2-butene.
• You do not have to consider stereochemistry.
• You do not have to explicitly draw H atoms.
If more than one structure fits the description, draw them all.
Separate structures with + signs from the drop-down menu.
C
P
opy aste
ChemDoodle
>
Chapter 9 Solutions
ORGANIC CHEMISTRY (LL)-W/SOLN.>CUSTOM<
Ch. 9.1 - Prob. 1PCh. 9.2 - Prob. 2PCh. 9.4 - How do bond distances and bond strengths change...Ch. 9.5 - Complete each of the following equations to show...Ch. 9.6 - Prob. 5PCh. 9.6 - Which of the alkynes of molecular formula C5H8 can...Ch. 9.7 - Give the structures of three isomeric dibromides...Ch. 9.7 - Prob. 8PCh. 9.9 - Write a series of equations showing how you could...Ch. 9.9 - Write a series of equations showing how to prepare...
Ch. 9.10 - Prob. 11PCh. 9.11 - Give the structure of the enol formed by hydration...Ch. 9.11 - Prob. 13PCh. 9.13 - Prob. 14PCh. 9.14 - Prob. 15PCh. 9 - Provide the IUPAC name for each of the following...Ch. 9 - Prob. 17PCh. 9 - All compounds in Problem 9.17 are isomers except...Ch. 9 - Prob. 19PCh. 9 - Write structural formulas for all the alkynes of...Ch. 9 - Prob. 21PCh. 9 - Prob. 22PCh. 9 - The alkane formed by hydrogenation of...Ch. 9 - Write the structure of the major organic product...Ch. 9 - Write the structure of the major organic product...Ch. 9 - When 2-heptyne was treated with aqueous sulfuric...Ch. 9 - Prob. 27PCh. 9 - Prob. 28PCh. 9 - Prob. 29PCh. 9 - Show by writing appropriate chemical equations how...Ch. 9 - Show by writing appropriate chemical equations how...Ch. 9 - Diphenylacetylene can be synthesized by the double...Ch. 9 - (Z)-9-tricosene [ (Z)-CH3(CH2)7CH=CH(CH2)12CH3 ]...Ch. 9 - Prob. 34PCh. 9 - Prob. 35PCh. 9 - Prob. 36PCh. 9 - Alkynes undergo hydroboration to give...Ch. 9 - Prob. 38DSPCh. 9 - Prob. 39DSPCh. 9 - Prob. 40DSPCh. 9 - Prob. 41DSPCh. 9 - Thinking Mechanistically About Alkynes The...
Knowledge Booster
Similar questions
- Draw the organic product obtained by hydroboration-oxidation of each of the following alkenes: (a) trans-2-pentene, (b) 2-tert-butyl-3,3-dimethyl-1- butene, and (c) 1-methylcyclohexene. Having done this, draw the product of the acid-catalyzed hydration of these same alkenes. How do the reaction products differ?arrow_forwardCompound A has molecular formula C4H10. Compound A gives two monochlorides, B and C, on photochemical chlorination. Treatment of either of these monochlorides with potassium tert-butoxide gives the same alkene (C4H8) as the product, but B leads to just one isomer of the alkene, D, whereas C gives D and another isomer of the alkene, E. Treatment of monochlorides B and C with aqueous ethanol gives products F and G, respectively, both of which are of molecular formula C4H100. What are the chemical names of compounds A-G?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
- Two substitution products result from the reaction between 3-chloro-3-methyl-1- butene with sodium acetate (CH3COO – Na +) in acetic acid under SN1. Identify the products.arrow_forwardHydroboration-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_forwardName the possible alkenes which will yield 1-chloro-1-methylcyclohexane on their reaction with HCl. Write the reactions involved.arrow_forward
- 2-chloropropane is a major product of the reaction of chlorine with propane under ultraviolet light. Write the mechanism for this reaction including the initiation step and the two propagation steps.arrow_forwardAlkynes do not react directly with aqueous acid as do alkenes, but will do so in the presence of mercury(II) sulfate as a Lewis acid catalyst. The reaction occurs with Markovnikov regiochemistry, so the OH group adds to the more highly substituted carbon and the H adds to the less highly substituted carbon. The initial product of the reaction is a vinyl alcohol, also called an enol. The enol immediately rearranges to a more stable ketone via tautomerization. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions -X티 Hö: H-O -CH3 -CH3 H30*arrow_forwardCompound A(C7H15Br) is not a primary alkyl bromide. It yields a single alkene(compound B) on being heated with sodium ethoxide in ethanol. Hydrogenation of compound B yields 2,4-dimethylpentane. Identify compounds A and B.arrow_forward
- 10) Synthesis: Make the following products from a suitable cyclic alkene starting material. Look at the functional group PATTERN present in the molecule, including stereochemistry. ♡ Br Brarrow_forwardWhen 2-bromo-2-methylbutane is treated with a base, a mixture of 2-methyl-2-butene and 2-methyl-1- butene is produced. When potassium hydroxide is the base, 2-methyl-1-butene accounts for 45% of the product mixture. However, when potassium tert-butoxide is the base, 2-methyl-1-butene accounts for 70% of the product mixture. What percent of 2-methyl-1-butene would be in the mixture if potassium propoxide were the base? base Br A. Less than 45% B. C. 45% Between 45% and 70% D. More than 70%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) dimethyl sulfoxide (DMSO) is used in place of methanol (b) methanol is used by itself without sodium methoxide (c) 1-chloro-2,2,-dimethylpropane is used in place of 3-chloro-2-methylpropenearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education
Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning
Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY