Write down the equations of chemical reactions. Name the reaction products: a) pentanoic acid

Write down the equations of chemical reactions. Name the reaction products: a) pentanoic acid with barium hydroxide. b) 2,2-dimethylpentanal with copper hydroxide. c) methanoic acid with ethanol. d) butane acid with propanol.

Let’s execute the solution:
We compose equations according to the condition of the problem:
a) 2H3C – CH2 – CH2 – CH2 – COOH + Ba (OH) 2 = (C4H9COO) 2Ba + H2O – exchange, the barium salt of pentanoic acid was obtained;
b) Н3С – С – (СН3) – (СН3) – СН2 – СН2 – СОН + Cu (OH) 2 = H3C – C (CH3) – (CH3) – CH2 – CH2 – COOH + Сu2O + 2H2O – oxidation of aldehyde with hydroxide copper occurs when heated, 2,2 – dimethyl pentanoic acid is formed;
c) НСООН + С2Н5ОН = НСОО – С2Н5 + Н2О – esterification, ethyl formate is released;
d) Н3С – СН2 – СН2 – СООН + С3Н7ОН = С3Н7 – СОО – С3Н7 + Н2О – butyropropionic ether obtained in the esterification process.
The above processes show the properties of functional groups of oxygen-containing organic compounds, for example, butanoic acid (butyric acid) reacts due to the carboxyl group, in propionic alcohol – the OH hydroxyl group.