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    Assorted Alkene Reactions

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    Hi. I'd like to check answers to some things before my final. I like handwritten work because it really helps me with the thought processes, like taking a test.

    1. Write an equation for the sequential hydroboration and H2O2/OH ̄ oxidation of 4-ethyl-3- heptene.

    2. Indicate the main monosubstitution products in each of the following reactions.
    a. 1,3,5-trimethylbenzene + bromine (Fe catalyst)
    b. 4-ethoxynitrobenzene + bromine (Fe catalyst)

    3. Which of the following substances can exist in an optically active form? Draw structures, and locate with an asterisk all chiral centers in each compound.
    a. 2-chlorobutane b. 1,2-dichlorobutane

    4. How many stereoisomers are possible for each of the following substances? Draw them, and name each by the R-S and E-Z conventions.
    a. 1,5-dibromo-3-hexene
    b. 4-methyl-2,5-octadiene

    5. Draw out each of the following equations in a way that shows clearly the stereochemistry of the reactants and products.
    a. (R)-2-bromobutane + methanol (arrowSN1) 2-methoxybutane
    b. (R)-3-bromohexane + sodium methoxide (arrowSN2) 3-methoxyhexane (in methanol)

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    Solution Summary

    The solution contains reactions of alkenes with names of stereoisomers with step-by-step workings and adequate explanations in a written format for greater clarity.

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