2005

Organo-phosphorus compoundsS 0080 Studies on Organophosphorus Compounds. Part 131. A Facile Synthesis of

4-(O,O-Dialkylphosphoryl)-1,3-oxazole by Rhodium-Catalyzed Heterocycloaddi-tion. — A series of 4-phosphoryl substituted 1,3-oxazoles (III) is prepared by reaction of diethyl 1-diazo-2-oxo-alkylphosphonates (I) with aromatic nitriles (II) in the pres-ence of rhodium(II) acetate as catalyst. — (GONG, D.; ZHANG, L.; YUAN*, C.; Synth. Commun. 34 (2004) 18, 3259-3264; Shanghai Inst. Org. Chem., Chin. Acad. Sci., Shanghai 200032, Peop. Rep. China; Eng.) — H. Haber

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