Write the mechanism of the following reaction
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KCN is a reasonance hybrid for the two contributing structures
K+ [ - C= N__C= N^-]
Thus CN - ion is an nucleophile therefore it can attack the carbon atom C - br bond in n- BuBr either through C or N
So C-C bond is stronger than C_N bond therefore attack occurs though C to from n butayel cyanide
k+ CN - + CH3 CH2 CH2- Br___ CH3 CH2CH2CH2 CN + KBr
K+ [ - C= N__C= N^-]
Thus CN - ion is an nucleophile therefore it can attack the carbon atom C - br bond in n- BuBr either through C or N
So C-C bond is stronger than C_N bond therefore attack occurs though C to from n butayel cyanide
k+ CN - + CH3 CH2 CH2- Br___ CH3 CH2CH2CH2 CN + KBr
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