Which of the following reagents cannot be used in a Friedel-Crafts reaction?
- A$FeCl_3$
- B$FeBr_3$
- C$AlCl_3$
- D$NaCl$
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Although chlorobenzene does not undergo the Ullmann reaction,the presence of which group at the $o-$ and $p-$ positions of chlorobenzene makes it possible to undergo the Ullmann reaction?
Difficult
View SolutionThe product obtained after the nitration of nitrobenzene is:
Medium
View SolutionThe compound $C_{7}H_{8}$ undergoes the following reactions:
$C_{7}H_{8}$ $\xrightarrow{3Cl_{2} / \Delta} A$ $\xrightarrow{Br_{2} / Fe} B$ $\xrightarrow{Zn / HCl} C$
The product '$C$' is
$C_{7}H_{8}$ $\xrightarrow{3Cl_{2} / \Delta} A$ $\xrightarrow{Br_{2} / Fe} B$ $\xrightarrow{Zn / HCl} C$
The product '$C$' is
The chemicals used for preparing acetophenone via Friedel-Crafts acylation are:
$(A)$ $C_6H_6$
$(B)$ $CH_3COCH_3$
$(C)$ $CH_3COCl$
$(D)$ Anhydrous $AlCl_3$
$(A)$ $C_6H_6$
$(B)$ $CH_3COCH_3$
$(C)$ $CH_3COCl$
$(D)$ Anhydrous $AlCl_3$
The Fittig reaction is:
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