发明名称 PROCESS FOR PREPARING OPTICAL BRIGHTENER OF 4,4-BIS-BENZ-0X-(THI,IMID)-AZOL-2-YL-STILBENES
摘要 Title compound is a useful fluorescense-increasing agent for plastics, synthetic fiber and synthetic rubber. The compound (II) such as o-aminophenol, o- aminothiophenol or o-phenylene diamine and 4-(halomethyl)benzoic acid (III) are reacted with thionylchloride in N-methyl pyrollidone solvent at 120-180 deg.C to give 2-benz-ox-(-ty,-imide)-azolyl-4-halomethyl-benzene (IV), which is reacted with sodium t-butoxide, potasium t-butoxide, KOH or NaOH in polar solvent such as N,N'-dimethyl formamide at -10 - 50 deg.C to give title compound(I).
申请公布号 KR940010887(B1) 申请公布日期 1994.11.19
申请号 KR19920007843 申请日期 1992.05.08
申请人 YUKONG LTD. 发明人 KIM, YUN - SONG;JONG, YONG - CHUN
分类号 C07D263/56;(IPC1-7):C07D263/56 主分类号 C07D263/56
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