(a)
To determine: The structure of the product and an intermediate, when hydroboration-oxidation is applied to
Interpretation: The structure of the product and an intermediate, when hydroboration-oxidation is applied to
Concept introduction: Hydroboration-oxidation reactions convert an
(b)
To determine: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne.
Interpretation: The reason as to why a mixture of products should be expected with any unsymmetrical internal alkyne is to be stated.
Concept introduction: Hydroboration-oxidation reactions convert an alkyne molecule into ketone in the presence of disiamylborane and hydrogen peroxide through two step mechanism, whereas an alkene molecule in hydroboration-oxidation reaction is converted into alcohol by the addition of water.
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Organic Chemistry Plus Masteringchemistry With Pearson Etext, Global Edition
- The second-order rate constant (in units of M-1s-1) for acid-catalyzed hydration at 25 °C is given for each of the following alkenes: a.Calculate the relative rates of hydration of the alkenes. (Hint: Divide each rate constant by the smallest rate constant of the series: 3.51 x 10-8.) b. Why does (Z)-2-butene react faster than (E)-2-butene? c. Why does 2-methyl-2-butene react faster than (Z)-2-butene? d. Why does 2,3-dimethyl-2-butene react faster than 2-methyl-2-butene?arrow_forwardai. Reaction of the same 1-butene with cold KMnO4/ -OH gives compound ‘C’. Identify compound C. ii. Reaction of 1- butene with Hot KMnO4/-OH gives compound ‘D’ followed by acidification of the mixture to give compound ‘E’. Identify compounds D and E. iii. When 1- butene is treated with HBr in the presence of a peroxide, give the name and structure of the product formed. b. Dehydrohalogenation of alkylhalides always gives more than one product. Using 3, methyl 2-butyl chloride, explain this observation.arrow_forward1. Write the detailed mechanism for the formation of the major product in each of the given reactions. Show proper stereochemistry in the product(s) where needed. 1) Hg(OAc)2, CH₂CH₂OH 2) NaBH4arrow_forward
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