σ-Bond initiated generation of aryl radicals from aryl diazonium salts.
Org Biomol Chem
; 18(9): 1812-1819, 2020 03 04.
Article
em En
| MEDLINE
| ID: mdl-32096533
ABSTRACT
σ-Bond nucleophiles and molecular oxygen transform aryl diazonium salts into aryl radicals. Experimental and computational studies show that Hantzsch esters transfer hydride to aryl diazonium species, and that oxygen initiates radical fragmentation of the diazene intermediate to produce aryl radicals. The operational simplicity of this addition-fragmentation process for the generation of aryl radicals, by a polar-radical crossover mechanism, has been illustrated in a variety of bond-forming reactions.
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Base de dados:
MEDLINE
Idioma:
En
Revista:
Org Biomol Chem
Assunto da revista:
BIOQUIMICA
/
QUIMICA
Ano de publicação:
2020
Tipo de documento:
Article
País de afiliação:
Austrália