Interpretation:
The given cycloalkane undergoes reaction with the given Simmons-Smith reagent which is stereospecific and gives only the isomer shown. The reason has to be suggested.
Concept Introduction:
Simmons-Smith reaction: This is ultrasonication improve the rate of formation of these organic zinc compounds, as with many organometallic reactions occurring at a surface condition.
Example: The substance of a carbenoid a carbine like substance that converters
Addition Reaction:
- It is a type of reaction in which two reactants adding together to form a single product.
- It can be said as a reverse reaction of elimination reaction.
- It is a characteristic reaction of
alkane .
Hydrogenation reaction is an addition reaction in which addition of hydrogen to an unsaturated molecule occurs
Stereoisomers are isomeric molecules that have the same molecular formula and sequence of bonded atoms but differ in the three-dimensional orientations of their atoms in space.
Stereospecific reaction: reaction undergoes from a stereoisomer to a unique stereo isomeric product.
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Chapter 15 Solutions
EP ORGANIC CHEMISTRY-OWL V2 ACCESS
- Aldehydes and ketones undergo acid-catalyzed reaction with alcohols to yield hemiacetals, compounds that have one alcohol-like oxygen and one ether-like oxygen bonded to the same carbon. Further reaction of a hemiacetal with alcohol then yields an acetal, a compound that has two ether-like oxygens bonded to the same carbon. (a) Show the structures of the hemiacetal and acetal you would obtain by reaction of cyclohexanone with ethanol. (b) Propose a mechanism for the conversion of a hemiacetal into an acetal.arrow_forwardDraw the organic product that is expected to form when the following compound is oxidized under biological conditions. oxidation SH reduction • You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • If no reaction occurs, draw the organic starting material.arrow_forwardwe know that ethers, such as diethyl ether and tetrahydrofuran, are quite resistant to the action of dilute acids and require hot concentrated HI or HBr for cleavage. However, acetals in which two ether groups are linked to the same carbon undergo hydrolysis readily, even in dilute aqueous acid. How do you account for this marked difference in chemical reactivity toward dilute aqueous acid between ethers and acetals?arrow_forward
- When butane reacts with Br₂ in the presence of Cl₂, both brominated and chlorinated products are obtained. Under such conditions, the usual selectivity of bromination is not observed. In other words, the ratio of 2-bromobutane to 1-bromobutane is very similar to the ratio of 2-chlorobutane to 1-chlorobutane. Can you offer and explanation as to why we do not observe the normal selectivity expected for bromination? Chlorine radicals perform the first propagation step (hydrogen abstraction) comparison to bromine radicals. Under these conditions in radicals form easily in the presence of chlorine radicals. Subsequently, the resulting radicals can react with bromine in a second propagation step to yield monobrominated products.arrow_forwardOptical active compound 1-chloro-3-methylcyclopentane was reacting withpotassium t-butoxide in t-butanol. Two alkene products were obtained. Themain product was optically active, and the secondary product was notoptically active. What are the two products?arrow_forwardcis-1-Bromo-4-tert-butylcyclohexane and trans-1-bromo-4-tert-butylcyclohexane both react with sodium ethoxide in ethanol to form 4-tert-butylcyclohexene. Explain why the cis isomer reacts much more rapidly than the trans isomer.arrow_forward
- How many alkenes yield 2,2,3,4,4−pentamethylpentane on catalytic hydrogenation?arrow_forwardCompounds X has the formula C7H15Cl; Y is C7H15Br.X undergoes base-promoted E2 elimination to give a single alkene product Z. Y likewise reacts under similar conditions to give a single alkene product that is isomeric with ZCatalytic hydrogenation of Z affords 3-ethylpentane.X readily reacts in SN2 fashion with sodium iodide in acetone. Y does not undergo a similar SN2 reaction. Propose structures for X and Y.arrow_forwardCompounds X and Y are both C5H11CI products formed in the radical chlorination of pentane. Base-promoted E2 elimination of X and Y gives, in each case, a single C5H10 alkene (ignoring double bond stereochemistry). Both X and Y react in SN2 fashion with sodium iodide in acetone; Y reacts faster than X. What is the structure of Y? • Do not use stereobonds in your answer. • In cases where there is more than one possible structure for each molecule, just give one for each. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate structures with + signs from the drop-down menu. ChemDoodle (Previous Nextarrow_forward
- Arrange the alkenes in each set in order of increasing rate of reaction with HI and explain the basis for your ranking. Draw the structural formula of the major product formed in each case.arrow_forwardDraw the cycloalkene that would react with the reagent given to account for the product formed. CH3- OH H2S04 H2O CH3 CH • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • In cases where there is more than one answer, just draw one. P. opy aste ASUSarrow_forwardTreatment of compound A (C8H17Br) with NaOCH2CH3 affords two constitutional isomers B and C. Ozonolysis of B affords CH2=O and (CH3CH2CH2)2C=O. Ozonolysis of C affords CH3CH2CH2COCH3 and CH3CH2CHO. What is the structure of A?arrow_forward
- Organic ChemistryChemistryISBN:9781305580350Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. FootePublisher:Cengage LearningEBK A SMALL SCALE APPROACH TO ORGANIC LChemistryISBN:9781305446021Author:LampmanPublisher:CENGAGE LEARNING - CONSIGNMENT