Ru(II)-catalyzed ortho-amidation and decarboxylation of aromatic acids: a versatile route to meta-substituted N-aryl benzamides
Autor: | Xue-Fen Dong, Xian-Ying Shi, Chao-Jun Li, Juan Fan, Ke-Yan Liu, Junfa Wei |
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Rok vydání: | 2015 |
Předmět: | |
Zdroj: | Science China Chemistry. 58:1286-1291 |
ISSN: | 1869-1870 1674-7291 |
Popis: | Carboxylate as a promising and valuable directing group has attracted a great deal of attention. However, employing it as a traceless direction group has rarely been reported. We developed the ruthenium-catalyzed amidation of substituted benzoic acids with isocyanates via directed C-H functionalization followed by decarboxylation to afford the corresponding meta- substituted N -aryl benzamides, in which the carboxylate serves as a unique, removable directing group. Notably, this protocol can provide an efficient alternative to access meta -substituted N -aryl benzamides, which are much more difficult to prepare than ortho -substituted analogues. |
Databáze: | OpenAIRE |
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