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
EBK ORGANIC CHEMISTRY
- Which of the following concepts explains Markovnikov's rule as applied to the addition of HBr to propene?arrow_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_forwardShow how to convert cyclohexanol to these compounds. a. Cyclohexene b. Cyclohexane c. Cyclohexanone d. Bromocyclohexanearrow_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_forwardGive the IUPAC name of the structure below: a.trans-2-methyl-2-en-4-propyl-hept-6-yne b.trans-4-propyl-5-en-hepty-1-yne c.cis-4-butyl-1-yne-octy-5-ene d.cis-2-methyl-2-en-4-propyl-hept-6-ynearrow_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
- What is the major organic product obtained from the following reaction? 1. NANH2 2. CH,CH2CH2BI a. 2-methyl-3-hexene b. 2-methyl-3-heptyne c. 2-bromo-3-methylbutane d. 2-methyl-2-butene aarrow_forwardGive the structure of the alkene you would start with, and the reagents and any special conditions necessary to convert it into these products: Tert-butyl alcohol b. 2-methylpentanearrow_forwardAlkyl halide can be prepared from the addition of H-X to alkenes. Identify the product in the reaction. H-Br Select one: a. 1,2-dibromo-2-methylpropane b. 1-bromo-2-methylpropane c. t-butyl bromide (or 2-bromo-2-methylpropane) d. 2-methylpropanearrow_forward
- Write 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_forwardprojector=1 5. 2-pentanol d. 2-methyl-2-butanol Ethanoic acid (vinegar) when diluted to low concentrations by water can be prepared from 15. ethene by a. reduction with H2, followed by reaction with a strong oxidizer b. addition of HCI, followed by reaction with H,O c. addition of H2O followed by reaction with a strong oxidizer d. addition of Br2, followed by reduction with H2 16. The primary product of the reaction below which uses excess HBr is which of the following? HBr C. Br Br Br Br b. d. Br Br Br Br Br Br 17. Select the compound with the highest boiling point at standard pressure. a. d. CH4 носн,сн,он b. е. CH 3CH 2CH 3 H3C-CH-CH3 он с. CH 3 CH 20H 18. One of the ingredients on a margarine container is listed as "polyunsaturated corn oil". This means that a. many of the carbon-c Page b. many of the polymer 3 l7tiple- uritedarrow_forwardDraw a structural formula for a hydrocarbon with the given molecular formula that undergoes hydroboration-oxidation to give the indicated product.arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co