Identify appropriate reagents for the above r | vedclass

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(C) The reaction involves the alpha-bromination of an aldehyde followed by dehydrobromination. Step $a$: The reaction of cyclohexanecarbaldehyde with

Vedclass · Accepted Answer

$a = Br_2 / H^{+}, b = alc. KOH$

Vedclass · Answer

(C) The reaction involves the alpha-bromination of an aldehyde followed by dehydrobromination. Step $a$: The reaction of cyclohexanecarbaldehyde with $Br_2$ in the presence of an acid catalyst $(H^{+})$ proceeds via the enol form to give alpha-bromocyclohexanecarbaldehyde. Step $b$: The alpha-bromoaldehyde undergoes dehydrobromination (elimination) using a base like alcoholic $KOH$ $(alc. KOH)$ to form the alpha,beta-unsaturated aldehyde (cyclohex$-1-$enecarbaldehyde). Thus,the correct reagents are $a = Br_2 / H^{+}$ and $b = alc. KOH$.

Identify appropriate reagents for the above reaction.

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