Concept explainers
(a)
Interpretation:
The mechanism for the formation of cis-2-octene starting from ethyne should be given.
Concept Introduction:
Deprotonation: The reaction in which proton is removed from the compound using reagents is known as deprotonation.
Different reagents are used for the deprotonation and one of the common reagent is sodium amide.
Lindlar catalyst: The catalyst is used for the hydrogenation of alkynes in a syn manner. This means both hydrogen are added on the same side across the triple bond and the product obtained will be a cis product.
Sodium in liquid ammonia: The catalyst is used for the formation of trans
(b)
Interpretation:
The mechanism for the formation of trans-3-heptene starting from ethyne should be given.
Concept Introduction:
Deprotonation: The reaction in which proton is removed from the compound using reagents is known as deprotonation.
Different reagents are used for the deprotonation and one of the common reagent is sodium amide.
Lindlar catalyst: The catalyst is used for the hydrogenation of alkynes in a syn manner. This means both hydrogen are added on the same side across the triple bond and the product obtained will be a cis product.
Sodium in liquid ammonia: The catalyst is used for the formation of trans alkenes from alkynes. Because of its more reactivity towards triple bonds, the reaction will stop at the formation of alkenes.
Want to see the full answer?
Check out a sample textbook solutionChapter 7 Solutions
Organic Chemistry (8th Edition)
- Explain why the following compounds are not optically active: a. the product obtained from the reaction of 1,3-butadiene with cis-1,2-dichloroethene b. the product obtained from the reaction of 1,3-butadiene with trans-1,2-dichloroethenearrow_forward1. An unsaturated hydrocarbon reacts with acidic KMnO4 to give isobutyric acid as the only organic product. The unsaturated hydrocarbon is most probably: a. none of these b. 2,2-dimethyl-3-hexene c. 3,4-dimethyl-3-hexene d. 4-methyl-2-hexene e. 2,5-dimethyl-3-hexene 2. Which of the ff. halides will most probably react via an SN1 mechanism? a. CH2=CHCl b. CH2=CHCH2CH2Cl c. CH3CH=CHCH2Cl d. CH3Cl 3. Which of the following will decolorize potassium permanganate solution at room temperature? a. 2-bromobutane b. 1-propanol c. chlorobenzene d. 1-hexynearrow_forwardShow how to convert cyclohexanol to these compounds. a. Cyclohexene b. Cyclohexane c. Cyclohexanone d. Bromocyclohexanearrow_forward
- 1. An alkene reacts with water with an acid catalyst results into a formation of: A. Aldehyde B. Ketone C. Alcohol D. Ester 2. 3-Methylhexanal with K2Cr2O7 will yield: A. 3-Methyl-1-hexanol B. 3-Methylhexanoic acid C. 3-Methyl-1-hexanone D. 3-Methyl-1-hexanethiol 3. This is a reverse process of Hydration reaction: A. Oxidation reaction B. Reduction reaction C. Dehydration reaction D. Hydration reaction 4. Acetic acid reacts with a strong base forms: A. Salt B. Water C. Salt and Water D. No reaction 5. Ketones can be further oxidized with benedict's solution into: A. Alcohol B. Aldehyde C. Catalysts D. No reactionarrow_forwardWhat is the IUPAC name for the following structure? CH3CH2CH=CHCH2CH2CH=CH2 A. 4,8-dioctene (4,8-dioktena) B. 1,5-octadiene (1,5-oktadiena) C. 1,5-diocatene (1,5-dioktena) D. 2,6-octadiene (2,6-oktadiena)arrow_forwardWrite equations for the reaction of cyclohexane with:a. Br2/H2O indoorsb. Br2/H2O in the presence of sunlight.arrow_forward
- 18. In the IUPAC name for the following compound, the -Br group is located on carbon number CH;CHCH=CH, Br a. 1 b. 2 С. 3 d. 4arrow_forwardHow would you convert the following compounds into butanoic acid using reagents from the table? a. 4-octene b. 1-butenearrow_forward- 19 Give the IUPAC name for the following compound: OH A. 5-ethyl-2-methyl-3-heptanol B. 3-ethyl-1-isopropyl-1-pentanol C. 3-methyl-1-(3-pentyl)-2-butanol D. 3-ethyl-6-methyl-5-heptanolarrow_forward
- Name the following compound according to IUPAC nomenclature: a. 2,2-Dimethyl-5-fluoro-hept-3yne b. 3-Flouro-4-yne-heptane c. 3-Fluoro-6,6-dimethyl-hept-4-yne d. 4-Fluoro-2,2-dimethyl-3-heptynearrow_forward4. What is the IUPAC name of the following compound ? CH3 H2C CH A. 1,3-Butadiene B. 1,3-Pentadiene C. 2-methyl-1,3-butadiene D. 3-methyl-1,3-butadiene Awaqtenarrow_forwardWrite the names and draw the structures of the product/s formed from the reaction of 3-methylpent-2-ene with: 1. HBr 2. Cl2 3. H2O in the presence of H2SO4 4. Ethanol in the presence of H2SO4 5. Br2, H2O 6. [1] 9-BBN; [2] H2O2, OH-arrow_forward
- 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