Ruthenium Complexes of 魏(P)- and 魏(P)-畏6-Coordinated KITPHOS Monophosphines: Efficient Catalysts for the Direct Ortho Arylation of 2-Phenylpyridine and N-Phenylpyrazole with Aryl Chl

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• 作者：Simon Doherty ; Julian G. Knight ; Carrie R. Addyman ; Catherine H. Smyth ; Nicholas A. B. Ward ; Ross W. Harrington
• 刊名：Organometallics
• 出版年：2011
• 出版时间：November 14, 2011
• 年：2011
• 卷：30
• 期：21
• 页码：6010-6016
• 全文大小：369K
• 年卷期：v.30,no.21(November 14, 2011)
• ISSN：1520-6041

文摘

Thermolysis of the P-coordinated KITPHOS monophosphine complex [(p-cymene)RuCl₂(KITPHOS)] in chlorobenzene at 120 掳C resulted in displacement of the p-cymene to afford [{魏(P)-畏⁶-KITPHOS}RuCl₂], the first example of a constrained-geometry complex in which the 魏(P)-bonded diphenylphosphino group and the 畏⁶-coordinated proximal phenyl ring are connected by an unsaturated two-carbon tether; both complexes form efficient catalysts for the direct ortho arylation of 2-phenylpyridine and N-phenylpyrazole with a range of aryl chlorides.