Iron??Promoted Practical One??Pot Synthesis of 2, 5??Disubstituted Oxazoles
S Chen, D Bai, F Shi, J Li, C Li…
Index: Chen, Songhui; Bai, Donghu; Shi, Feng; Li, Jian; Li, Chunju; Jia, Xueshun Chinese Journal of Chemistry, 2012 , vol. 30, # 7 p. 1464 - 1468
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Abstract
Abstract A practical one-pot protocol for the synthesis of 2, 5-disubstituted oxazoles from 1- aryl-2-nitroethanones was reported. In the presence of iron/AcOH in acetonitrile, the reaction of 1-aryl-2-nitroethanones with trimethyl orthoacetate or trimethyl orthobenzoate delivered the corresponding 2, 5-disubstituted oxazoles in moderate to good yields.
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