Answer to Question #109622 in Organic Chemistry for Karina Giselle

Question

How is an aldehyde produced? And what is the oxidation product of an aldehyde?

Answer 1

Generally aldehydes produced by oxidation (using wide range of reagents) of primary alcohols (secondary alcohols oxidized to ketones)

Primary: results in aldehyde

Secondary: results in ketone

Reagents suitable for oxidation of primary alcohols:

• CrO₃/t-BuOH
• Na₂Cr₂O₇/H₂SO₄
• MnO₂/C₅H₁₂
• CrO₃*2Py
• etc.

Some of reagents can further oxidize appearing aldehyde to caboxylic acid, so you must use selective reagents (that modify only primary alcohol group -CH₂-OH or carefully count stoichiometry).

Further oxidation of aldehydes lead to carboxylic acid formation: