کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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1323088 | 977265 | 2008 | 5 صفحه PDF | دانلود رایگان |
The rhodium-catalyzed direct ortho-arylation reactions of phenylazoles using arylboron reagents such as tetraarylborates were examined. Ethyl chloroacetate and potassium fluoride were found to effectively act as a hydrogen acceptor and a promoter, respectively, to afford selective formation of the corresponding mono- or diarylated products with good yields. In addition, azobenzene as well as 2-phenylpyridine also underwent the direct arylation under similar conditions.
Direct ortho-arylation of phenylazoles with arylboron reagents under rhodium catalysis proceeds efficiently to afford the corresponding mono- or diarylated products. Ethyl chloroacetate and potassium fluoride effectively act as a hydrogen acceptor and a promoter, respectively. Azobenzene as well as 2-phenylpyridine also undergo the direct arylation under similar conditions.Figure optionsDownload as PowerPoint slide
Journal: Journal of Organometallic Chemistry - Volume 693, Issue 14, 1 July 2008, Pages 2438–2442