Question

Which of the following is the predominant product in the reaction of $\text{HOBr}$ with propene?

• A. 2-bromo-l-propanol
• B. 3-bromo-l-propanol
• C. 2-bromo-2-propanol
• D. l-bromo-2-propanol

Answer 1

Answer: (D)

l-bromo-2-propanol

Answer 2

$\underset{\text{propene}}{\mathop{C{{H}_{3}}CH=C{{H}_{2}}}}\,+\overset{\delta -}{\mathop{HO}}\,\overset{+}{\mathop{Br}}\,\xrightarrow{{}}\underset{1-\text{bromo}-2-\text{propanol}}{\mathop{C{{H}_{3}}\underset{OH}{\mathop{\underset{|}{\mathop{CH}}\,}}\,-C{{H}_{2}}Br}}\,$ The addition takes place according to Markownikoffs rule.