The products A and B in the following reactio | vedclass

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Question

(B) The reaction sequence is as follows:$1$. Styrene $(Ph-CH=CH_2)$ reacts with $HBr$ to form $1-$bromo$-1-$phenylethane $(Ph-CH(Br)-CH_3)$ via Markov

Vedclass · Accepted Answer

$A$ = $2-$phenylpropanoic acid; $B$ = $N$-methyl$-2-$phenylpropanamide

Vedclass · Answer

(B) The reaction sequence is as follows:$1$. Styrene $(Ph-CH=CH_2)$ reacts with $HBr$ to form $1-$bromo$-1-$phenylethane $(Ph-CH(Br)-CH_3)$ via Markovnikov addition.$2$. This alkyl bromide reacts with $Mg$ in dry ether to form the Grignard reagent $(Ph-CH(MgBr)-CH_3)$.$3$. The Grignard reagent reacts with $CO_2$ followed by acidic workup $(H_3O^+)$ to form $2-$phenylpropanoic acid $(Ph-CH(CH_3)-COOH)$,which is product $A$.$4$. $2-$phenylpropanoic acid $(A)$ reacts with $SOCl_2$ to form the corresponding acid chloride $(Ph-CH(CH_3)-COCl)$.$5$. This acid chloride then reacts with methylamine $(CH_3NH_2)$ to form the amide,$N$-methyl$-2-$phenylpropanamide $(Ph-CH(CH_3)-CONHCH_3)$,which is product $B$.

Column-$I$ (formula)	Column-$II$ (name)
$A$. $RCH=NH$	$i$. Diisobutyl aluminium hydride
$B$. $AlH(i-Bu)_2$	$ii$. Benzalchloride
$C$. $C_6H_5-CH(OCOCH_3)_2$	$iii$. Imine
$D$. $C_6H_5CHCl_2$	$iv$. Benzylidene diacetate

The products $A$ and $B$ in the following reaction sequence are:

Similar Questions

What is the product of the following reaction?

The product $D$ of the reaction is:
$CH_3Cl$ $\xrightarrow{KCN} (A)$ $\xrightarrow{H_2O} (B)$ $\xrightarrow{NH_3} (C)$ $\xrightarrow{\Delta} (D)$

Saponification (basic hydrolysis) of $C_6H_5-CO-^{18}OCH_3$ will yield. [$^{18}O$ = mass $-18$ isotope of oxygen]

Statement $(A)$: Carboxylic acid can be obtained by the reaction of $R-C \equiv N$ with $H_3O^+$ under mild reaction conditions.
Statement $(B)$: Hydrolysis of $R-C \equiv N$ in alkaline aqueous medium gives $R-COONa$ and $NH_3$ as products.
The correct answer is:

Match the formulas in Column-$I$ with their names in Column-$II$.

Column-$I$ (formula) Column-$II$ (name)

$A$. $RCH=NH$ $i$. Diisobutyl aluminium hydride

$B$. $AlH(i-Bu)_2$ $ii$. Benzalchloride

$C$. $C_6H_5-CH(OCOCH_3)_2$ $iii$. Imine

$D$. $C_6H_5CHCl_2$ $iv$. Benzylidene diacetate

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