A bioinspired Cu(I)/ N -methylimidazole catalyst system is used for the synthesis of the diaryl ether part of diafenthiuron, a widely used insecticide. The convenient protocol proceeds smoothly with high selectivity and quantitative yield. Applying the optimized procedure various diaryl ether analogs are synthesized in good to excellent yield.
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Schareina et al. (2008) studied this question.
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