diazonium

In this process, paper or film is coated with a diazonium salt.

In most cases, including the examples below, the diazonium compound is also aromatic.

Often, diazonium compounds are not isolated and once prepared, used immediately in further reactions.

It is a salt of a diazonium cation and chloride.

His new enthusiasm for chemistry yielded the discovery of diazonium salts in 1858.

It is often preferred that the diazonium salt remain in solutions, but they do tend to supersaturate.

This also explains why diazonium salt grafting thus far has been possible with those metals to right of iron in the periodic table.

The main drawback of this method is the explosive nature of diazonium compounds.

Amines can be converted to diazonium salts, which are then hydrolyzed.

An important reaction of aromatic diazonium salts is azo coupling.

If nitrate is present, red diazonium dye is formed.

The diazonium group is a good leaving group, forming nitrogen gas when displaced from the organic structure.

He prepared it by reduction of a phenyl diazonium salt using sulfite salts.

One can isolate diazonium compounds as tetrafluoroborate salts, which are stable at room temperature.

In other organic research he showed that diazonium compounds undergo 2+4 cycloaddition to dienes.

Such compounds are usually prepared by direct reaction of the low-valent metal complexes with diazonium salts.

Amines react with nitrous acid to give diazonium salts.

The alkyl diazonium salts are of little synthetic importance because they are too unstable.

Aromatic iodides may be prepared via a diazonium salt in the Sandmeyer reaction.

Aromatic nitriles are often prepared in the laboratory from the aniline via diazonium compounds.

Above all, the selective diazonium chemistry can be used to separate the semiconducting and metallic nanotubes.

Solid diazonium halides are often dangerously explosive, and fatalities and injuries have been reported.

This step results in expulsion of the tosyl group and formation of a diazonium anion.

The treatment of aniline with nitrous acid,produces a diazonium salt, in a reaction called diazotization.

The process of forming diazonium compounds is called "diazotation", "diazoniation", or "diazotization".