Which of the following reactions will give al | vedclass

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

Question

(A) In reaction $(a)$,acetaldehyde reacts with $NaCN/HCl$ to form acetaldehyde cyanohydrin,which upon acid hydrolysis yields lactic acid,which is an $

Vedclass · Accepted Answer

$CH_3-CHO \xrightarrow{(i) NaCN/HCl, (ii) H_2O/H^{+}/\Delta}$

Vedclass · Answer

(A) In reaction $(a)$,acetaldehyde reacts with $NaCN/HCl$ to form acetaldehyde cyanohydrin,which upon acid hydrolysis yields lactic acid,which is an $\alpha$-hydroxy acid: $CH_3-CHO + HCN$ $\rightarrow CH_3-CH(OH)CN$ $\xrightarrow{H_2O/H^{+}/\Delta} CH_3-CH(OH)COOH$. $(b)$ The Reformatsky reaction yields a $\beta$-hydroxy ester,which upon hydrolysis gives a $\beta$-hydroxy acid. $(c)$ Nucleophilic substitution of $X$ by $OH^-$ at the $\beta$-carbon yields a $\beta$-hydroxy acid.

Which of the following reactions will give $\alpha$-hydroxy acid as a product?

Similar Questions

The products $A$ and $B$ of the below reaction sequence are

The compound obtained by the reduction of propionaldehyde by amalgamated zinc and concentrated $HCl$ is

What are $X$ and $Y$ in the following reaction sequence?
$Propene$ $\xrightarrow{HBr} A$ $\xrightarrow[Dry \ ether]{Mg} B$ $\xrightarrow[2. H_3O^{+}]{1. X} Y$

Benzaldehyde and acetaldehyde can be differentiated by

What is the product formed when acetone reacts with $I_2$ in the presence of $NaOH$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module