Eight 4-arylidene-2-phenyloxazol-5-ones were synthesized by reaction of aromatic aldehydes and hippuric acid under ultrasonic irradiation in the absence of catalyst. The reaction was completed in 30～ 40 min in high y...Eight 4-arylidene-2-phenyloxazol-5-ones were synthesized by reaction of aromatic aldehydes and hippuric acid under ultrasonic irradiation in the absence of catalyst. The reaction was completed in 30～ 40 min in high yield. The structures of the products were characterized by IR and 1H NMR.展开更多
文摘Eight 4-arylidene-2-phenyloxazol-5-ones were synthesized by reaction of aromatic aldehydes and hippuric acid under ultrasonic irradiation in the absence of catalyst. The reaction was completed in 30～ 40 min in high yield. The structures of the products were characterized by IR and 1H NMR.
