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31.25.1.1.1.6 Method 6: Coupling of Diazonium Salts with Elimination of Nitrogen

DOI: 10.1055/sos-SD-031-01625

Rück-Braun, K.; Dietrich, S.; Kempa, S.; Priewisch, B.Science of Synthesis, (2007311451.

In the Sandmeyer reaction, aryl radicals are formed from arenediazonium ions by reduction with copper(I) salts with release of nitrogen. Symmetrically substituted diazenes 99 are formed in fair to good yields by rapidly mixing solutions of the diazonium salts with freshly prepared tetraamminecopper(I) solutions (Scheme 40).[‌178‌,‌179‌]

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