Carry out a chain of transformations: 1. alkyne – & aldehyde – carboxylic acid – ester – carboxylic acid salt

Carry out a chain of transformations: 1. alkyne – & aldehyde – carboxylic acid – ester – carboxylic acid salt 2. alkene – monohydric alcohol – aldehyde – carboxylic acid salt – carboxylic acid salt

Let’s implement the solution:
1. С2Н2 + Н2О = СН2 = СН – ОН – СН3СНО – hydration of acetylene, acetaldehyde was released;
CH3CHO + Ag2O = CH3COOH + 2Ag –oxidation;
CH3COOH + C3H7 – OH = CH3COO – C3H7 + H2O – esterification reaction, acetic propionic ether was formed;
CH3COO – C3H7 + H2O = CH3COOH + C3H7OH – hydrolysis;
2CH3COOH + Mg = (CH3COO) 2Mg + H2 – substitutions, magnesium acetate was obtained;
2. С2Н4 + Н2О = Н3С – СН2ОН – hydration;
CH3 – CH2OH + CuO = C2H4O + Cu + H2O – oxidation;
С2Н4О + Ag2O = CH3COOH + 2Ag – oxidation;
CH3COOH + NaOH = CH3COONa + H2O – exchange. Received sodium acetate.