11. Radical Reactions

What alkyl halide will be obtained in greatest yield? Ignore stereoisomers.

d.

Propose mechanisms consistent with the following reactions.

(a)

Predict the major products of the following alkene halogenation reactions. [D is the symbol for deuterium, an isotope of hydrogen.]

(a)

Propose a mechanism for the reaction of pent-1-yne with HBr in the presence of peroxides. Show why anti-Markovnikov orientation results.

What alkyl halide will be obtained in greatest yield? Ignore stereoisomers.

e.

Predict the product(s) that would result when the alkenes shown here are allowed to react under the following conditions: (iii) HBr, H₂O₂

(b)

Predict the major products of the following alkene halogenation reactions. [D is the symbol for deuterium, an isotope of hydrogen.]

(b)