The first intramolecular Heck–Matsuda reaction and its application in the syntheses of benzofurans and indoles
摘要:
In this Letter, we report, for the first time, the development of an efficient method for the intramolecular Heck reaction of arenediazonium salts in the synthesis of benzofuran and indole derivatives. In addition, this methodology allowed the synthesis of a series of dihydrobenzofuran acetic acid derivatives via a domino Heck-Matsuda coupling-carbonylation reaction. (c) 2010 Elsevier Ltd. All rights reserved.
Acylamino-Directed Specific Sequential Difunctionalizations of Anilides via Metal-Free Relay Reactions for p-Oxygen and o-Nitrogen Incorporation
摘要:
Novel acylamino-directed relay disubstitutions realize the sequential difunctionalizations of anilides (1) under mild and metal-free conditions for the first time. This [bis(trifluoroacetoxy)iodo]benzene (PIFA) and BF3 center dot Et2O promoted straightforward reaction produces a series of p-acetoxyl- or p-alkoxyl-o-nitro-N-arylamides (2), which are key scaffolds of various drugs, functional materials, and bioactive molecules. The flexibility with respect to the functional groups in these products affords this novel protocol excellent versatility for synthetic applications.
Velikorodov, Russian Journal of Organic Chemistry, 2000, vol. 36, # 2, p. 233 - 239
作者:Velikorodov
DOI:——
日期:——
Acylamino-Directed Specific Sequential Difunctionalizations of Anilides via Metal-Free Relay Reactions for <i>p</i>-Oxygen and <i>o</i>-Nitrogen Incorporation
Novel acylamino-directed relay disubstitutions realize the sequential difunctionalizations of anilides (1) under mild and metal-free conditions for the first time. This [bis(trifluoroacetoxy)iodo]benzene (PIFA) and BF3 center dot Et2O promoted straightforward reaction produces a series of p-acetoxyl- or p-alkoxyl-o-nitro-N-arylamides (2), which are key scaffolds of various drugs, functional materials, and bioactive molecules. The flexibility with respect to the functional groups in these products affords this novel protocol excellent versatility for synthetic applications.
The first intramolecular Heck–Matsuda reaction and its application in the syntheses of benzofurans and indoles
作者:Fernanda A. Siqueira、Jason G. Taylor、Carlos Roque D. Correia
DOI:10.1016/j.tetlet.2010.02.011
日期:2010.4
In this Letter, we report, for the first time, the development of an efficient method for the intramolecular Heck reaction of arenediazonium salts in the synthesis of benzofuran and indole derivatives. In addition, this methodology allowed the synthesis of a series of dihydrobenzofuran acetic acid derivatives via a domino Heck-Matsuda coupling-carbonylation reaction. (c) 2010 Elsevier Ltd. All rights reserved.