Concept explainers
a)
Interpretation:
The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone is to be stated.
Concept introduction:
Addition of water to triple bonds occurs to yield an enol initially as the product. The enol then tautomerizes to give a ketone as the final product. Terminal
To state:
The alkyne which can be used as a starting material for preparing methyl-n-propyl ketone.
b)
Interpretation:
The alkyne which can be used as a starting material for preparing diethyl ketone is to be stated.
Concept introduction:
Addition of water to triple bonds occurs to yield an enol initially as the product. The enol tautomerizes to give a ketone as the final product. Terminal
To state:
The alkyne which can be used as a starting material for preparing diethyl ketone.
Trending nowThis is a popular solution!
Chapter 9 Solutions
Organic Chemistry
- Can you please answer this and explain why the correct answer is correct?arrow_forward3. Complete the following reactions by drawing structures for the products in each case. NaOH SH Br H2O2 HIO4arrow_forwardFunctional groups such as alkynes react the same in complex molecules as they do in simpler structures. The following example of alkyne reaction were taken from syntheses carried out in the research group of E. J. Corey at Harvard University. You can assume that the reactions listed involve only the alkyne, not any of the functional groups present in the molecules. Draw the expected products for the following reaction .arrow_forward
- 4-pyranone will readily undergo an acid-base reaction. Identify the reaction conditions that will result in the formation of an aromatic product. Then, draw the aromatic resonance product structure. Include all lone pairs in your structure. Ignore inorganic byproducts. H3O+arrow_forwardstarting from benzene, how might you synthesize these compoundarrow_forwardC,d,e,farrow_forward
- 3. Show the steps necessary, in order, to make each of the following compounds, starting with benzene. a) DE CH NO₂arrow_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_forwardUse alkynes as starting materials and intermediates in one-step and multistep syntheses.arrow_forward
- During multistep syntheses, reduction reactions are often performed. Functional groups react differently with these reagents. With this in mind, draw the structure of the product of this reaction: CO₂H CO₂H s HO₂C • For your convenience, the starting material has been drawn for you in the sketchpad. HO OH LIAIH4 -OH - [ ] ?arrow_forwardi cant find the answersarrow_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
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningIntroduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning