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Organic Chemistry 2

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Moderate

BHT as an Antispoiling Agent

ORGO2-87ZKTD

Owing to its structure, BHT (2,6-di-t-butyl-4-methylphenol) is frequently used as an antioxidant in plastics, packaging materials and foods. It functions by slowing the rate of oxygen-induced free radical oxidation.
Which of the following properties of BHT contribute to its overall effectiveness as a free radical scavenger?

Select ALL that apply.

A

Due to the "nearness" of the tert-butyl substituents to the hydroxy group of BHT, an oxygen centered radical of BHT would be less reactive.

B

Due to the "farness" of the tert-butyl substituents to the methyl group of BHT, a carbon entered radical of BHT would be less reactive.

C

The electron density at an oxygen centered radical of BHT can be delocalized effectively onto the aromatic (benzene) ring of BHT.

D

The electron density at an carbon centered radical of BHT can be delocalized effectively onto the aromatic (benzene) ring of BHT.