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Direct Arylation of Oxazoles at C2. A Concise Approach to Consecutively Linked Oxazoles
Organic Letters, 2008The synthesis of bis- and trisoxazoles via direct arylation is discussed. A variety of aryl groups can be installed at the 2-position of 5-aryl and 5-carboxy-substituted oxazoles under mild conditions using palladium catalysis on water. The direct arylation method can be extended to the synthesis of bis- and trisoxazoles if 2-triisopropylsilyl-4 ...
Flegeau, Emmanuel Ferrer +2 more
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Tetrahedron, 1994
Abstract Oxazole-4-sulfones, -phosphonates, and -nitriles are prepared by rhodium(II) catalysed addition of nitriles to the corresponding diazo compound. The effect of the ligand on rhodium was briefly investigated, with rhodium(II) trifluoroacetamide generally proving the most effective catalyst.
Kevin J. Doyle, Christopher J. Moody
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Abstract Oxazole-4-sulfones, -phosphonates, and -nitriles are prepared by rhodium(II) catalysed addition of nitriles to the corresponding diazo compound. The effect of the ligand on rhodium was briefly investigated, with rhodium(II) trifluoroacetamide generally proving the most effective catalyst.
Kevin J. Doyle, Christopher J. Moody
openaire +1 more source
Recent Achievements in the Synthesis of Oxazoles
Current Organic Chemistry, 2021Dau Xuan Duc, Nguyen Thi Chung
exaly