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Reactions of Aromatic Compounds - Examples of Ar-SE Reaction

Exercise: Diazonium Coupling

Instruction : Exercise 1

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Fig.1

Exercise

How can triazenes be converted into the more stable C-azo compounds?

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By heating under basic condition.

By cooling in basic solution.

By heating under acidic condition.

By irradiation with ultraviolet light.

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Exercise

What is critical in carrying out a diazonium coupling?

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Irradiation with ultraviolet light.

The laboratory temperature.

The pH value.

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Exercise

The importance of diazonium coupling is ...

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... that aromatic diazo compounds are usually intensively aromatic, as they possess an extensive conjugated μ electron system.

... that aromatic diazo compounds are usually intensively coloured, as they possess an extensive conjugated π electron system.

... that aromatic diazo compounds are usually particularly water-soluble, as they possess an extensive conjugated σ bond system.

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