Question

Given the following sequence of reactions, $ C{{H}_{3}}C{{H}_{2}}I\xrightarrow{NaCN}A\xrightarrow[Partial\,\,hydrolysis]{O{{H}^{-}}}B $ $ \xrightarrow[{}]{B{{r}_{2}}/NaOH}C $ The major product C is

• A. $ C{{H}_{3}}C{{H}_{2}}N{{H}_{2}} $
• B. $ C{{H}_{3}}C{{H}_{2}}\underset{O}{\mathop{\underset{\mathbf{|}\,\,\mathbf{|}}{\mathop{C}}\,}}\,-NHBr $
• C. $ C{{H}_{3}}C{{H}_{2}}-COON{{H}_{4}} $
• D. $ C{{H}_{3}}C{{H}_{2}}-\underset{O}{\mathop{\underset{|\,\,|}{\mathop{C}}\,}}\,-NB{{r}_{2}} $

Answer 1

Answer: (A)

$ C{{H}_{3}}C{{H}_{2}}I\xrightarrow{NaCN}C{{H}_{3}}C{{H}_{2}}CN\xrightarrow{O{{H}^{-}}} $ $ C{{H}_{3}}C{{H}_{2}}CON{{H}_{2}}\xrightarrow{B{{r}_{2}}/NaOH}C{{H}_{3}}C{{H}_{2}}N{{H}_{2}} $