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Air-Stable Triazine-Based Ni(II) PNP Pincer Complexes As Catalysts for the Suzuki-Miyaura Cross-Coupling

Matthias Mastalir1, Berthold Stöger2, Ernst Pittenauer2

  • 1Institute of Applied Synthetic Chemistry, Vienna University of Technology , Getreidemarkt 9/163-AC, A-1060 Wien, Austria.

Organic Letters
|June 10, 2016
PubMed

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Nitrous acid is a relatively weak and unstable acid prepared in situ by the reaction of sodium nitrite and cold, dilute hydrochloric acid. In an acidic solution, the nitrous acid undergoes protonation when it loses water to form a nitrosonium ion—an electrophile. Nitrous acid reacts with primary amines to give diazonium salts. The reaction is called diazotization of primary amines.
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