A compound contains an alpha-hydrogen atom an | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The reaction described is the Aldol condensation of acetaldehyde $(CH_3CHO)$.Step $1$: Two molecules of acetaldehyde undergo aldol condensation in

Vedclass · Accepted Answer

$CH_3CHO$

Vedclass · Answer

(A) The reaction described is the Aldol condensation of acetaldehyde $(CH_3CHO)$.Step $1$: Two molecules of acetaldehyde undergo aldol condensation in the presence of dilute $NaOH$ to form $\beta$-hydroxybutanal.$CH_3CHO + CH_3CHO \xrightarrow{dil. NaOH} CH_3-CH(OH)-CH_2-CHO$ ($\beta$-hydroxybutanal).Step $2$: Upon heating with dilute acid,$\beta$-hydroxybutanal undergoes dehydration to form crotonaldehyde $(CH_3CH=CH-CHO)$.$CH_3-CH(OH)-CH_2-CHO \xrightarrow{\Delta, H^+} CH_3CH=CH-CHO + H_2O$ (Crotonaldehyde).Therefore,the starting compound is $CH_3CHO$.

$A$ compound contains an $\alpha$-hydrogen atom and forms a $\beta$-hydroxy aldehyde in the presence of a dilute alkali. When this product is heated with a dilute acid,it yields unsaturated crotonaldehyde. Identify the compound.

Similar Questions

Which of the following compounds on reaction with ammoniacal silver nitrate solution forms a precipitate of silver?

$R-C(=O)H + R-NH_2 \rightarrow R-CH=N-R$. This reaction gives the best yield at:

Which of the following reacts with alcohol in the presence of dry $HCl$ to form an acetal?

Which one of the following will most readily be dehydrated in acidic condition?

The major product of the following reaction is

Vedclass Test Series

Exam Paper Generator

Online Exam Module