Which of the following reagents is used in Gatterman-Koch formylation of arene?
- A$CrO_3$
- B$CO, HCl / AlCl_3$ (anhydrous)
- C$CrO_2Cl_2, CS_2$
- D$Cl_2, hv, H_3O^{+}$
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Similar Questions
Which of the following sets of reagents convert toluene to benzaldehyde?
$A$. $Cl_2 / h\nu ; H_2O, \Delta$
$B$. $Cl_2 / Fe ; H_2O$
$C$. $KMnO_4 / OH^{-} ; H^{+}$
$D$. $CrO_2Cl_2 / CS_2 ; H_3O^{+}$
$A$. $Cl_2 / h\nu ; H_2O, \Delta$
$B$. $Cl_2 / Fe ; H_2O$
$C$. $KMnO_4 / OH^{-} ; H^{+}$
$D$. $CrO_2Cl_2 / CS_2 ; H_3O^{+}$
Dry distillation of calcium acetate and calcium formate forms:
The product $A$ in the following reaction is:
$CH_3-CH=CH-CH_2-CN \xrightarrow[(2) H_3O^+]{(1) DIBAL-H, -78^{\circ}C} A$
$CH_3-CH=CH-CH_2-CN \xrightarrow[(2) H_3O^+]{(1) DIBAL-H, -78^{\circ}C} A$
Difficult
View SolutionThe correct match between Item-$I$ (starting material) and Item-$II$ (reagent) for the preparation of benzaldehyde is :
Item-$I$ Item-$II$ $I$. Benzene $P$. $HCl$ and $SnCl_2, H_3O^{+}$ $II$. Benzonitrile $Q$. $H_2, Pd-BaSO_4, S$ and quinoline $III$. Benzoyl Chloride $R$. $CO, HCl$ and $AlCl_3$
| Item-$I$ | Item-$II$ |
| $I$. Benzene | $P$. $HCl$ and $SnCl_2, H_3O^{+}$ |
| $II$. Benzonitrile | $Q$. $H_2, Pd-BaSO_4, S$ and quinoline |
| $III$. Benzoyl Chloride | $R$. $CO, HCl$ and $AlCl_3$ |
DifficultJEE MAIN 2020
View SolutionWhich of the following reactions represents the Rosenmund reduction?
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