# Oxidation reactions in organic chemistry

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## Oxidative Cleavage of 1,2-Diols: Introduction

### Starting materials:

• 1,2-diols (glycols)
• strong oxidizing agents such as Periodic acid $\text{H}\text{I.}{\text{O}}_{4}$ or lead tetraacetate $\text{Pb}{\left(\text{O}\text{Ac}\right)}_{4}$

In the oxidative cleavage of 1,2-diols, the iodine (VII) initially present is reduced to iodine (V) or lead (IV) to lead (II) and the C-C bond is cleaved by oxidation of the alcohol groups. Two aldehyde or keto groups are obtained, depending on whether the OH groups in the glycol are primary or secondary.

Fig.1
Fig 2
Glycol splitting with potassium periodate

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