Question

$1-$ hexyne $+$ $dicyclohexylborane$ $/H_{2}O/O{H}^{-}\to$ major

Give the major product of the above reaction

• A. $hexanal$
• B. $hex-1-en-2-ol$
• C. $hex-1-yn-1-ol$
• D. $2-hexanone$

Answer 1

Answer: (A)

$hexanal$

$1-Hexyne$ is reacted with dicyclo hexylborane in the presence of $H_2{O}_2$ and $O{H}^{-}$ to form hexanal as a major product.

It is an anti-markownikoff's product. $H_2{O}_2$ is anti-markownikoff's reagent.