Successive reaction of 2-aryl-4-dichloromethylideneoxazol-54H-ones with 2-amino-1,3-thiazoles and strongly basic nitrogen-containing reagents
摘要:
Treatment of 2-aryl-4-dichloromethylideneoxazole-5(4H)-ones first with 2-aminothiazoles and then with benzylamine, piperidine, or morpholine gave the corresponding 5-amino-4-(1,3-thiazol-2-ylcarbamoyl)-1,3-oxazole derivatives whose structure was confirmed by a combination of spectral data and X-ray analysis.