Question

How will you bring about the following conversion in not more than two steps?

Bromoethane to cis-Hex-3-ene

Answer 1

\[\begin{array}{cc}
\ce{\phantom{......................................................................}CH3CH2\phantom{........}CH2CH3}\\
\phantom{.......................................................................}\backslash\phantom{.......}/\\
\ce{\underset{Bromoethane}{CH3CH2Br} ->[Na+ C- = C - CH2CH3][Liq{.} NH3, -NaBr]\underset{Hex-3-yne}{CH3 - CH2 - C ≡ C - CH2CH3} ->[H2][Pd/BaSO4]C = C}\\
\phantom{.......................................................................}/\phantom{.......}\backslash\\
\ce{\phantom{.......................................................................}H\underset{cis-Hex-3-ene}{\phantom{.........}H}}\\
\end{array}\]