Literature DB >> 19587943

The rhodium carbene route to oxazoles: a remarkable catalyst effect.

Baolu Shi1, Alexander J Blake, Ian B Campbell, Brian D Judkins, Christopher J Moody.   

Abstract

Dirhodium tetraacetate catalysed reaction of alpha-diazo-beta-keto-carboxylates and -phosphonates with arenecarboxamides gives 2-aryloxazole-4-carboxylates and 4-phosphonates by carbene N-H insertion and cyclodehydration; in stark contrast, dirhodium tetrakis(heptafluorobutyramide) catalysis results in a dramatic change of regioselectivity to give oxazole-5-carboxylates and 5-phosphonates.

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Year:  2009        PMID： 19587943     DOI： 10.1039/b903878g

Source DB:  PubMed          Journal:  Chem Commun (Camb)        ISSN： 1359-7345            Impact factor:   6.222


  3 in total

Review 1.  Transition metal-mediated synthesis of monocyclic aromatic heterocycles.

Authors:  Anton V Gulevich; Alexander S Dudnik; Natalia Chernyak; Vladimir Gevorgyan
Journal:  Chem Rev       Date:  2013-01-10       Impact factor: 60.622

2.  Fe3O4 MNPs as a green catalyst for syntheses of functionalized [1,3]-oxazole and 1H-pyrrolo-[1,3]-oxazole derivatives and evaluation of their antioxidant activity.

Authors:  Shahrzad Abdolmohammadi; Zinatossadat Hossaini
Journal:  Mol Divers       Date:  2019-01-17       Impact factor: 2.943

3.  Efficient synthesis of oxazoles by dirhodium(II)-catalyzed reactions of styryl diazoacetate with oximes.

Authors:  Xinfang Xu; Peter Y Zavalij; Wenhao Hu; Michael P Doyle
Journal:  Chem Commun (Camb)       Date:  2012-12-07       Impact factor: 6.222
  3 in total

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