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Role of copper species in the oxidative dimerization of arylboronic acids: Synthesis of symmetrical biaryls

Demir, Ayhan Sıtkı
Reis, O
Emrullahoglu, M
Certain Cu(I) and Cu(II) salts are able to mediate the dimerization of arylboronic acids in DMF. They provide the corresponding symmetrical biaryls in moderate to very good yields. It is possible to run the reaction catalytically under an oxygen atmosphere without a significant loss of yields.