The major product of the following reaction i | vedclass

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

Question

(C) The reaction of $CH_3-CH_2-CHO$ with excess $HCHO$ in the presence of an alkali involves two steps: $1$. Multiple cross-aldol condensation: The $\

Vedclass · Accepted Answer

$CH_3-C(CH_2OH)_2-CHO$

Vedclass · Answer

(C) The reaction of $CH_3-CH_2-CHO$ with excess $HCHO$ in the presence of an alkali involves two steps: $1$. Multiple cross-aldol condensation: The $\alpha$-hydrogens of propanal are replaced by hydroxymethyl groups $(CH_2OH)$ through reaction with $HCHO$. Since propanal has two $\alpha$-hydrogens,both are replaced to form $CH_3-C(CH_2OH)_2-CHO$. $2$. Cross-Cannizzaro reaction: The remaining aldehyde group $(-CHO)$ is then reduced to a primary alcohol $(-CH_2OH)$ by the excess $HCHO$,which itself gets oxidized to formate. The final product is $CH_3-C(CH_2OH)_3$.

The major product of the following reaction is :
$CH_3-CH_2-CHO \xrightarrow[\text{reflux}]{\text{excess } HCHO / \text{alkali}} ?$

Similar Questions

What type of product is obtained when formaldehyde reacts with $CH_3MgBr$ in dry ether?

Which one of the following is the major product of the given reaction?

The general order of reactivity of carbonyl compounds for nucleophilic addition reactions is

Hex$-4-$en$-2-$ol on treatment with $PCC$ gives $'A'.$ $'A'$ on reaction with sodium hypoiodite gives $'B',$ which on further heating with soda lime gives $'C'.$ The compound $'C'$ is $....... .$

$(A)$ and $(B)$ in the following reaction sequence are:
$RR'C=O$ $\xrightarrow{HCN} (A)$ $\xrightarrow{B} RR'C(OH)CH_2NH_2$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

The major product of the following reaction is :$CH_3-CH_2-CHO \xrightarrow[\text{reflux}]{\text{excess } HCHO / \text{alkali}} ?$