The reactions listed here are all methods of forming aldehydes from different starting materials such as nitriles, chlorobenzene, and acyl chlorides. Familiarity with reagents and reaction conditions helps in correctly identifying the reaction type.
- Aldehydes are formed from the reaction of isonitriles (RCN) with stannic chloride (\( \text{SnCl}_4 \)) followed by hydrolysis; this is known as the Etard reaction. - Aldehydes are produced from the reaction of chlorobenzene with HCl under heat, a process termed the Gatterman-Koch reaction. - The Rosenmund reduction involves the hydrogenation of acyl chlorides to aldehydes. - The Stephen reaction reduces aromatic nitriles to aldehydes using stannous chloride.
