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Hofmann mustard oil reaction....

Hofmann mustard oil reaction.

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Alkyl isothicyanate with a smell of musterd iol is formed on heating a mixture of `1^(@)` amine, `"CS"_(2)` and `HgCl_(2)`.
`underset("Ethylamine")(CH_(3)CH_(2)NH_(2))+underset("Carbon disulphide")(S=C=S)overset(HgCl_(2))(to)underset("Dithioethyl carbamic acid")(CH_(3)CH_(2)-NH-overset(S)overset(||)(C)-SH)underset(Delta)overset(HgCl_(2))(to)HgS+2HCl+CH_(3)-CH_(2)-N=C=S`
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A compound (X) has the molecular formula C_3 H_7 NO . With Br_2 and KOH , (X) gives (Y) . (Y) responds to mustard oil reaction . (Y) upon treatment with HNO_2 evolves N_2 and gives an alcohol (Z) which gives iodoform test , (X) is likelty to be :

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Hofmann's Bromamide reaction

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