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

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• 作者：Matthias Mastalir ; Berthold Stöger ; Ernst Pittenauer ; Günter Allmaier ; Karl Kirchner
• 刊名：Organic Letters
• 出版年：2016
• 出版时间：July 1, 2016
• 年：2016
• 卷：18
• 期：13
• 页码：3186-3189
• 全文大小：400K
• 年卷期：0
• ISSN：1523-7052

文摘

Air-stable, thermally robust, and well-defined cationic Ni(II) PNP pincer complexes based on the 2,4-diaminotriazine scaffold are described. These complexes are active catalysts for the Suzuki–Miyaura cross-coupling of a wide range of aryl, heteroaryl (including benzoxazole, thiazole, pyridine, pyrimidine, thiazole), primary and secondary alkyl halides, and pseudohalides with different organoboronate reagents giving excellent to good isolated yields. Neutral deprotonated complexes seem to play a key role in the catalytic process.