Xiao B, Gong TJ, Xu J, Liu ZJ, Liu L.* Palladium-catalyzed intermolecular directed C-H amidation of aromatic ketones. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 133, 1466-1474, 2011.

root 提交于 周日, 10/31/2021 - 01:47
Abstract Pd-catalyzed directed ortho C-H amidation of aromatic ketones with both sulfonamides and amides has been accomplished. The use of an electron-deficient Pd complex, Pd(OTf)(2), is crucial for the success of this transformation. Some key intermediates of the reaction, that is, the cyclopalladation complexes of ketones, have been characterized by X-ray crystallography. Experimental analysis of these palladacycles and also the experimental results with N-methyl sulfonamides indicate that the new reaction does not seem to proceed through a nitrene intermediate. The utility of the newly developed reaction was demonstrated for the synthesis of useful organic intermediates such as 2- and 3-alkyl indoles and 2-aminophenyl ketones.......

相关内容

发布日期 08/04/2020 - 01:35
发布日期 08/04/2020 - 01:35
发布日期 10/17/2023 - 23:16
发布日期 02/18/2025 - 20:47
发布日期 01/18/2025 - 20:37
发布日期 01/31/2024 - 13:01
发布日期 02/29/2024 - 16:35