abstract |
AZOLE COMPOUNDS USEFUL FOR FLUORESCENT BRIGHTENING AGENTS FOR SYNTHETIC FIBERS, SUCH AS 1-(5-(CH3-)BENZOXAZOL-2-YL),4-((5-PHENYL-1,3,4-OXADIAZOL- 2-YL)-CH=CH-)BENZENE THE COMPOUND IS PREPARED BY HEATING 2-(4-(PHENYL-CO-NH-NH-CO-CH=CH-)PHENYL),5-(CH3-)- BENZOXAZOLE WITH A DEHYDRATING AGENT OF THIONYL CHLORIDE IN ORDER TO CAUSE RING FORMATION. |