A xrightarrow{PhSO_2Cl} B xrightarrow{KOH} C | vedclass

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Question

(B) The reaction sequence is a characteristic test for primary amines using Hinsberg's reagent $(PhSO_2Cl)$. $1$. $A$ is a primary amine $(RNH_2)$. $2

Vedclass · Accepted Answer

$RNH_2, PhSO_2N(C_2H_5)R$

Vedclass · Answer

(B) The reaction sequence is a characteristic test for primary amines using Hinsberg's reagent $(PhSO_2Cl)$. $1$. $A$ is a primary amine $(RNH_2)$. $2$. $A$ reacts with $PhSO_2Cl$ to form $N$-alkylbenzenesulfonamide ($B$,$PhSO_2NHR$). $3$. $B$ has an acidic hydrogen on the nitrogen atom,so it reacts with $KOH$ to form a water-soluble potassium salt ($C$,$PhSO_2N^-R K^+$). $4$. The salt $C$ undergoes alkylation with ethyl iodide $(C_2H_5I)$ to form $N$-ethyl-$N$-alkylbenzenesulfonamide ($D$,$PhSO_2N(C_2H_5)R$). Therefore,$A$ is $RNH_2$ and $D$ is $PhSO_2N(C_2H_5)R$.

$Test/Method$	$Reagent$
$(i)$ Lucas Test	$(a)$ $C_6H_5SO_2Cl/aq. KOH$
$(ii)$ Dumas method	$(b)$ $HNO_3/AgNO_3$
$(iii)$ Kjeldahl's method	$(c)$ $CuO/CO_2$
$(iv)$ Hinsberg Test	$(d)$ Conc. $HCl$ and $ZnCl_2$
	$(e)$ $H_2SO_4$

$A$ $\xrightarrow{PhSO_2Cl} B$ $\xrightarrow{KOH} C$ $\xrightarrow{C_2H_5I} D$
$C$ is water soluble.
Correct structures of $A$ and $D$ are:

Similar Questions

Urea can be tested by

Match the following:
$Test/Method$ $Reagent$
$(i)$ Lucas Test $(a)$ $C_6H_5SO_2Cl/aq. KOH$
$(ii)$ Dumas method $(b)$ $HNO_3/AgNO_3$
$(iii)$ Kjeldahl's method $(c)$ $CuO/CO_2$
$(iv)$ Hinsberg Test $(d)$ Conc. $HCl$ and $ZnCl_2$
$(e)$ $H_2SO_4$

The amine that reacts with Hinsberg's reagent to give an alkali-insoluble product is:

Which of the following amine$(s)$ show$(s)$ positive carbylamine test?
$A. CH_3CH_2NH_2$
$B. (CH_3)_2NH$
$C. CH_3NH_2$
$D. (CH_3)_3N$
$E. C_6H_5NH_2$
Choose the correct answer from the options given below:

Find out the reaction in which the obtained product gives a positive isocyanide test.

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$A$ $\xrightarrow{PhSO_2Cl} B$ $\xrightarrow{KOH} C$ $\xrightarrow{C_2H_5I} D$ $C$ is water soluble. Correct structures of $A$ and $D$ are: