Concept explainers
Interpretation: The reason behind the consideration of hydroboration-oxidation an addition reaction should be determined and the small molecule that adds during hydroboration should be identified.
Concept introduction: Hydroboration-oxidation involves a sequence of two reactions. The hydroboration stage involves the treatment of alkene with diborane that generates alkyl borane. In second stage hydrogen peroxide in alkaline medium is used to oxidize the alkyl borane produced in step 1 that leads to the synthesis of alcohols from
Anti-Markovnikov’s Rule serves as the basis ofhydroboration. It states that the negative part of reagent must go to the carbon that has less alkyl substituents or more
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
EBK EXPERIMENTAL ORGANIC CHEMISTRY: A M
- The rate law for addition of Br2 to an alkenes is first order in Br2 and first order in the alkene. Does this information suggest that the mechanism of addition of Br2 to an alkene proceeds in the same matter as for addition of HBr? Explain.arrow_forwardWhich of these statements is true about halogenation of 2-methylbutane? It occurs via an addition reaction. B The primary C is halogenated first. Based on probability, the dominant product should be a tertiary alkylhalide. None of the choicesarrow_forwardIs the reaction between an alkene and a halogen a substitution reaction or some other reaction? Explain the reaction mechanism by giving an example.arrow_forward
- What type of orbital overlaps to form a pi bond in an alkene? What symbol is used to represent a pi bond? How many electrons are in a pi bond?arrow_forwardWhy are different conformations of an alkane not considered structural isomers?arrow_forwardDistinguish between isomerism and resonance. Distinguish between structural and geometric isomerism. When writing the various structural isomers, the most difficult task is identifying which are different isomers and which are identical to a previously written structurethat is, which are compounds that differ only by the rotation of a carbon single bond. How do you distinguish between structural isomers and those that are identical? Alkenes and cycloalkanes are structural isomers of each other. Give an example of each using C4H8. Another common feature of alkenes and cycloalkanes is that both have restricted rotation about one or more bonds in the compound, so both can exhibit cis- trans isomerism. What is required for an alkene or cycloalkane to exhibit cis-trans isomerism? Explain the difference between cis and trans isomers. Alcohols and ethers are structural isomers of each other, as are aldehydes and ketones. Give an example of each to illustrate. Which functional group in Table 21-4 can be structural isomers of carboxylic acids? What is optical isomerism? What do you look for to determine whether an organic compound exhibits optical isomerism? 1-Bromo-1-chloroethane is optically active whereas 1-bromo-2-chloroethane is not optically active. Explain.arrow_forward
- What is the difference in bonding and in the general molecular formula between an alkene and an alkane with the same number of carbon atoms?arrow_forwardWhat are aromatic hydrocarbons? Benzene exhibits resonance. Explain. What are the bond angles in benzene? Give a detailed description of the bonding in benzene. The electrons in benzene are delocalized, while the electrons in simple alkenes and alkynes are localized. Explain the difference.arrow_forwardWrite the structural formulas for two (2) chloro-isomers that can formed from 2-methypropane (isobutene). How many sets of equivalent hydrogen are there in the compound 2-methypropane?arrow_forward
- What is the organic reaction for addition (halogenation of Alkenes) I have written Alkenes + halogenation ———> unsaturated alkyl halide Is it right?arrow_forwardThe rate law for addition of Br2 to an alkene is first order in Br2 and first order in the alkene. Does this information suggest that the mechanism of addition of Br2 to an alkene proceeds in the same manner as for addition of HBr? Explain.arrow_forwardtype of organic reactionarrow_forward
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning
- Chemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage LearningIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning