Question

На примере 2-метилпропаналя описать хим. свойства альдегидов. Как я поняла это горение 4 CH3CHCH3COH+11O2=8CO2+8H2O присоединение уже не знаю как ...помогите. спасибо.

Answer 1

Здесь реакция серебряного зеркала. CH3CH(Ch3)CHO + 2[Ag(NH3)2]OH → CH3CH(CH3)COOH + 2Ag↓ + 4NH3 + H2O

Answer 2

Properties of aldehydes

Aldehydes are organic compounds that contain a carbonyl group (C=O) bonded to a carbon atom. This carbon atom is bonded to hydrogen and/or other carbon atoms.

2-Methylpropanal is an example of an aldehyde. Its chemical formula is CH3CH(CH3)CHO. Like other aldehydes, it exhibits the following characteristic chemical properties:

Oxidation: Aldehydes can be oxidized to carboxylic acids. For example, 2-methylpropanal can be oxidized to 2-methylpropanoic acid:

`CH3CH(CH3)CHO + O2 → CH3CH(CH3)COOH`

Reduction: Aldehydes can be reduced to primary alcohols. Reducing 2-methylpropanal yields 2-methyl-1-propanol:

`CH3CH(CH3)CHO + 2H + 2e- → CH3CH(CH3)CH2OH`

Nucleophilic addition: Aldehydes undergo addition reactions with nucleophiles. For example, with HCN it forms cyanohydrins:

`CH3CH(CH3)CHO + HCN → CH3CH(CH3)CH(OH)CN`

Oxidation-reduction: Aldehydes can be oxidized to carboxylic acids or reduced to primary alcohols, as shown above.

I hope this overview of the characteristic chemical properties of aldehydes using 2-methylpropanal as an example is helpful in understanding the question. Please let me know if you need any clarification or have additional questions.