Problem 36P
1. Predict the elimination products of the following reactions. When two alkenes are possible, predict which one will be the major product. Explain your answers, showing the degree of substitution of each double bond in the products.
2. Which of these reactions are likely to produce both elimination and substitutionproducts?
(a) 2-bromopentane + NaOCH3
(b) 3-bromo-3-methylpentane + NaOMe (Me = methyl, CH3)
(c) 2-bromo-3-ethylpentane + NaOH
(d) cis-1-bromo-2-methylcyclohexane + NaOEt (Et = ethyl, CH2CH3)
Solution 36P
Step 1
(a) 2-Bromopentane is a secondary alkyl halide. It is reacted with sodium methoxide to form two elimination products and one substitution product. In general, secondary alkyl halides are participated in reactions.
The degree of substitution in pent-1-ene is 1 and pent-2-ene is 2.
