A. Ramazani, Behnaz Abdian, F. Z. Nasrabadi
May 1, 2013
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Phosphorus, Sulfur, and Silicon and the Related Elements
Abstract
Abstract Reaction of N-isocyaniminotriphenylphosphorane with biacetyl in the presence of (E)-cinnamic acids proceeds smoothly at room temperature and under neutral conditions to afford sterically congested 1,3,4-oxadiazole derivatives in high yields. The reaction proceeds smoothly and straightforward under mild conditions and no side reactions are observed. GRAPHICAL ABSTRACT