Which of the following reagents is used in th | vedclass

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(B) The Gatterman-Koch reaction is a specific formylation reaction used to introduce a formyl group $(-CHO)$ onto an aromatic ring. In this reaction,t

Vedclass · Accepted Answer

$CO, HCl$ (anhyd. $AlCl_3$)

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(B) The Gatterman-Koch reaction is a specific formylation reaction used to introduce a formyl group $(-CHO)$ onto an aromatic ring. In this reaction,the arene is treated with carbon monoxide $(CO)$ and hydrogen chloride $(HCl)$ in the presence of anhydrous aluminum chloride $(AlCl_3)$ and cuprous chloride $(CuCl)$ as a catalyst. This combination generates the reactive electrophile $HCO^+$,which performs electrophilic aromatic substitution on the arene to yield an aromatic aldehyde. Therefore,the correct reagent system is $CO, HCl$ (anhyd. $AlCl_3$).

Which of the following reagents is used in the Gatterman-Koch formylation of an arene?

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