A Facile Synthesis of 4‐(O,O‐Dialkylphosphoryl)‐1,3‐oxazole by Rhodium‐Catalyzed Heterocycloaddition

Abstract A series of 4‐phosphoryl substituted 1,3‐oxazole are prepared conveniently by reaction of diethyl 1‐diazo‐2‐oxo‐alkylphosphonates and aromatic nitriles in the presence of a catalytic amount of rhodium(II) acetate. #Studies on Organophosphorus Compounds, Part 131. For Part 130, see C. Xu and C. Yuan, Tetrahedron 2004, 60, 3883–389.

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