It is important to be able to apply the knowledge of activating/deactivating gro

Question

It is important to be able to apply the knowledge of activating/deactivating groups and directing effects (i.e. ortho/para vs meta directing) to synthetic strategies. The order of reactions in a synthetic sequence can have a big effect on the efficiency and selectivity of the product obtained. Which of the following methods would be the most effective strategy to synthesize meta-nitrobenzoic acid from toluene? step 1: tolueneK2Cr207/H2S04, then step 2: HNO3/H2S04 step 1: toluene+ HNO3/H2S04, then step 2: K2Cr207/H2SO4

Explanation / Answer

first the toluene should be reacted with K2Cr2O7 /h2so4 which will lead to the formation of benzoic acid which is having a meta directing group , now react it with nitrating mixture that is HNO3 /H2SO4 .

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