(a)
Interpretation:
The mechanism of reduction from
Concept introduction:
The compounds that contain carbon and hydrogen atoms are known as hydrocarbon compounds. These compounds originate from plants and animals. These are also known as organic compounds. There are two classes of hydrocarbon compounds which are saturated and
(b)
Interpretation:
The reason for complete conversion of
Concept introduction:
The compounds that contain carbon and hydrogen atoms are known as hydrocarbon compounds. These compounds originate from plants and animals. These are also known as organic compounds. There are two classes of hydrocarbon compounds which are Saturated and unsaturated hydrocarbons. Unsaturated hydrocarbon compound are of two types alkenes and alkynes. The alkene contains a double bond between two carbon atoms. The alkynes contains a triple bond between two carbon atoms and follow general formula
Want to see the full answer?
Check out a sample textbook solutionChapter 14 Solutions
EBK ORGANIC CHEMISTRY
- 5. An unknown hydrocarbon A with the formula C,H12 reacts with 1 molar equivalent of H2 over a palladium catalyst. Hydrocarbon A also reacts with OsO4 to give diol B. When oxidized with KMNO4 in acidic solution, A gives two fragments. One fragment is propanoic acid, CH3CH2CO2H, and the other fragment is ketone C. What are the structures of A, B, and C? Write all reactions and show your reasoning.arrow_forward2-methyl-2-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 hydroboration- oxidation), or Hg (for oxymercuration-reduction), in a separate sketcher. • 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. ? ChemDoodleⓇ ⒸO [F ▼ [ ] در >arrow_forwardNa, NH3 H3C-C=C-CH3 CH3 H3C° Alkynes are reduced to trans alkenes by a process called dissolving metal reduction. The reaction uses sodium or lithium metal as the reducing agent and liquid ammonia as the solvent. The method is specific in the formation of trans alkenes from alkynes. The method involves two successive transfers of single electrons from the alkali metal to the triple bond, with abstraction of protons from the ammonia solvent. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions .CH3 H-NH2 CH3 :NH2 H3C H3Carrow_forward
- Draw the structural formula of the enol formed in each alkyne hydration reaction; then draw the structural formula of the carbonyl compound with which each enol is in equilibriumarrow_forward4. Compound A has the formula C 8H 8. It reacts rapidly with KMnO 4 to give CO 2 and a carboxylic acid, B (C 7H 6O 2), but reacts with only 1 molar equivalent of H 2 on catalytic hydrogenation over a palladium catalyst. On hydrogenation under conditions that reduce aromatic rings, 4, equivalents of H 2 are taken up and hydrocarbon C (C 8H 16) is produced. What are the structures of A, B, and C.arrow_forwardWhen 2-pentene is treated with Cl2 in methanol, three products are formed. Account for the formation of each product (you need not explain their relative percentages).arrow_forward
- C=CH H20, H2SO4 H9SO4 CH3 Alkynes 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 H-OH HO: Hjö: C=CH c=CH Hö Hg Hgarrow_forwardCCH H20, H2SO4 H9SO4 CH3 Alkynes 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 Hjö: -CH3 -CH3 H3O*arrow_forward4-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 BH; (for hydroboration-oxidation), or Hg (for oxymercuration-reduction), in a separate sketcher. 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.arrow_forward
- 10carrow_forwardDescribe a sequence of reactions by which cis-2-pentene could be prepared from acetylene.arrow_forward1. Reaction of 2,3-dimethyl-1-butene with HBr leads to an alkyl bromide, C6H13Br. On treatment of this alkyl halide with KOH in methanol, elimination of HBr occurs and a hydrocarbon that is isometric with the starting alkene is formed. What is the structure of this hydrocarbon and how do you think it is formed from an alkyl bromide? 2. 1-Octen-3-ol is a potent mosquito attractant commonly used in mosquito traps. A number of reactions, including hydrogenation, will transform 1-Octen-3-ol into a less effective molecule. Write a complete reaction equation for the hydrogenation of this alkenol.arrow_forward
- Macroscale and Microscale Organic ExperimentsChemistryISBN:9781305577190Author:Kenneth L. Williamson, Katherine M. MastersPublisher:Brooks ColeOrganic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage Learning