Suggest a mechanism to account for Step 1 in the sequence. (3 marks) 2 equivalents heat in

Suggest a mechanism to account for Step 1 in the sequence. (3 marks) 

 

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2 equivalents heat in acetic acid C-C H NH3 + N. NH H3C Step 1 ČH3 1. conc. HNO3/ conc. H2SO4 Step 2 2. neutralisation NO2 NO2 NO2 N. NH HN N OH Step 3 CH3 CH3 CH3 2-methyl-4(5)-nitroimidazole metronidazole 2 equivalents heat in acetic acid C-C H NH3 + N. NH H3C Step 1 ČH3 1. conc. HNO3/ conc. H2SO4 Step 2 2. neutralisation NO2 NO2 NO2 N. NH HN N OH Step 3 CH3 CH3 CH3 2-methyl-4(5)-nitroimidazole metronidazole