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Qu'est-ce (qui) est diazonium - définition
DIAZONIUM SALTS
Diazonium salt; Diazotisation; Diazonium; Diazotation; Diazonium Salt; Diazonium compounds; Craig method; Diazotization; Aryl diazonium salt; Arenediazonium salts; Arenediazonium salt; Diazonium salts; Metal diazonium complex; Diazo process; Diazonium cation; Diazotating; Conversion of diazonium salt to phenol; Draft:Conversion of Diazonium Salt to Phenol; Conversion of Diazonium Salt to Phenol; Diazo salt; Alkyldiazonium
diazonium
[?d???'z??n??m]
¦ noun [as modifier] Chemistry of or denoting an organic cation containing two nitrogen atoms bonded together, present in many synthetic dyes.
Origin
C19: coined in Ger. from diazo- (indicating the presence of two nitrogen atoms) + the suffix -onium (from ammonium).
Diazonium compound
Diazonium compounds or diazonium salts are a group of organic compounds sharing a common functional group where R can be any organic group, such as an alkyl or an aryl, and X is an inorganic or organic anion, such as a halide.
Azo coupling
![Synthesis of C.I. [[Pigment Yellow 12]], a [[diarylide pigment]].](https://commons.wikimedia.org/wiki/Special:FilePath/PigmentYellow12corrected.png?width=200 "Synthesis of C.I. [[Pigment Yellow 12]], a [[diarylide pigment]].")
CHEMICAL REACTION
Diazonium coupling; Azo formation; Azocoupling; Azo-coupling; Coupling (chemistry)
In organic chemistry, an azo coupling is an organic reaction between a diazonium compound () and another aromatic compound that produces an azo compound (). In this electrophilic aromatic substitution reaction, the aryldiazonium cation is the electrophile and the activated arene is a nucleophile.
Wikipédia
Diazonium compound
Diazonium compounds or diazonium salts are a group of organic compounds sharing a common functional group [R−N+≡N]X− where R can be any organic group, such as an alkyl or an aryl, and X is an inorganic or organic anion, such as a halide.
