摘要
在苯和50％NaOH介质中,80℃时1,4-二溴丁烷与咔唑(CZ)反应,生成N-溴丁基咔唑(BCZ)。在丙酮和K2CO3介质中,50℃时N-溴丁基咔唑与1-苯基-3-甲基-4-苯甲酰基吡唑啉-5-酮(PMBP)反应,生成1-苯基-3-甲基-4-咔唑-N-丁基-4-苯甲酰基吡唑啉-5-酮(PMCBP),详细研究了CZ,BCZ,PMBP和PMCBP的UV和IR光谱。在氯仿中PMCBP对Nd(Ⅲ)的萃取率是PMBP的2.3倍,PMBP-Nd(Ⅲ)配合物无荧光,但PMCBP-Nd(Ⅲ)配合物有很强的荧光,说明PM-CBP是Nd(Ⅲ)的优良荧光试剂。
In benzene-50% NaOH medium, 1, 4-dibromobu-tane reacts with carbazole(CZ) to form N-bromobutylcar-bazole(BCZ) at 80℃. The 1-phenyl-3-methyl-4-carbazolyl -B-butyl-4- benzoyl -5-pyrazolone (PMCBP) was synthesized by reaction of BCZ with 1-phenyl -3-methyl -4-benzo-yl-5- pyrazolone (PMBP) in acetone-K2 CO3 mediun at 50℃. The UV and IR spectra of CZ,BCZ,PMBP and PMCBP have been studied . Extraction rate of Nd(III) by PMCBP in chloroform is 2. 3 times that of PMBP. The fluorescence of PMCBP- Nd (III) complex is strong , but PMBP- Nd(III) complex is not fluorescent. It is shown that PMCBP is an excellent fluorescent reagent for Nd(III).
出处
《化学试剂》
CAS
CSCD
北大核心
2003年第4期193-195,共3页
Chemical Reagents
基金
国家自然科学基金(20105003)
广东省自然科学基金(980128)
