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Explain the following reactions : (a) Mustard oil reaction (b) Gattermann reaction |
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Answer» Solution :(a) Mustard oil reaction . METHYL amine (primary amine) on heating with carbon disulphide in the presence of MERCURY CHLORIDE gives methyl isothiocyanide which has a pungent mustard-like odour. This reaction is mustard oil reaction. `CH_3 NH_2 + CS_2 overset(HgCl_2)to underset("Methyl isothiocyanide")(CH_3 NCS + H_2S)` (b) Gattermann reaction . Benzene diazonium chloride, on reaction with HCl in the presence of CU powder gives CHLOROBENZENE. This reaction is Gattermann reaction. `C_6 H_5 - N_2 Cl underset(HCl)overset(Cu)to underset("Chlorobenzene")(C_6 H_5 Cl) + N_2 uarr` |
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