CN110172336A - 一种检测hso3-及水合肼的双功能荧光探针及其制备方法与应用 - Google Patents
一种检测hso3-及水合肼的双功能荧光探针及其制备方法与应用 Download PDFInfo
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Abstract
本发明公开了一种检测HSO3 ‑及水合肼的双功能荧光探针及其制备方法与应用。该制备方法以3‑(4″‑甲酰基‑1′,1″‑联苯‑4′‑羰基)诺蒎酮与2‑氰基乙酸乙酯进行缩合反应,得到3‑(4″‑((2‑氰基)丙烯酸乙酯基)‑1′,1″‑联苯‑4′‑羰基)诺蒎酮;3‑[4″‑(1‑氰基‑2‑乙酯基)乙烯基‑1′,1″‑联苯‑4′‑羰基]诺蒎酮与三氟化硼乙醚反应,得到3‑[4″‑(1‑氰基‑2‑乙酯基)乙烯基‑1′,1″‑联苯‑4′‑羰基]诺蒎酮基氟硼络合物。本发明制备的3‑(4″‑((2‑氰基)丙烯酸乙酯基)‑1′,1″‑联苯‑4′‑羰基)诺蒎酮氟硼络合物,与HSO3 ‑根离子络合后,溶液的荧光颜色由蓝绿色变为蓝色;与水合肼反应后,溶液的荧光颜色由蓝绿色变为黄色,可作为双功能荧光探针在识别HSO3 ‑根离子和水合肼方面具有很好的应用前景。
Description
技术领域
本发明属精细有机合成技术领域,涉及一种检测HSO3 -及水合肼的双功能荧光探针及其制备方法与应用。
背景技术
肼(NH2NH2)和硫酸氢盐(HSO3 -)作为工业生产中的必要原料被广泛应用于许多领域。首先,NH2NH2由于其具有较强的还原性和亲核性,在化学工业,催化,制药,航空航天和农业中具有广泛的应用。然而,NH2NH2被人体吸收后对肝,肺,肾和中枢神经系统造成严重损害。作为潜在的人类致癌物,美国环境保护署(EPA)规定N2H4的阈值限值为10ppb(0.312μM)。另外,作为抗氧化剂和抗菌剂,HSO3 -被广泛用于日常生活中,如饮料,食品和药物工业。然而过量的HSO3 -能够诱导多种呼吸系统疾病的发生,如心血管疾病,神经系统疾病。据世界卫生组织(WHO)报道,每日人体摄入的HSO3 -盐为0-0.7mg/Kg。为了人类健康和安全,在制造,运输和处置过程中监测肼和亚硫酸氢盐的含量是非常重要的。
与其他分析方法相比,荧光分析方法具有操作简单、灵敏度高、选择性高等优点。有很多关于HSO3 -根离子以及水合肼荧光探针的报道。但是已经报道的HSO3 -以及水合肼荧光探针,大多数都是单一对HSO3 -或者水合肼进行检测。然而在很多条件下,HSO3 -根离子和水合肼会在同一个水环境下共存。如果合成一个双功能荧光探针能够同时分别识别HSO3 -和水合肼,这样不仅节省了合成成本,而且提高了检测效率。近年来,多种双功能荧光探针被报道,但是能够同时分别识别HSO3 -根离子和水合肼的双功能荧光探针少有报道。因此,合成HSO3 -根离子和水合肼双功能荧光探针不仅能够提高检测效率,而且能够降低合成成本。
发明内容
发明目的:针对现有技术中存在的不足,本发明的目的在于提供一种能识别HSO3 -和水合肼的双功能荧光探针,可与亚硫酸氢根离子及水合肼反应,产生不同的荧光颜色变化,用于同时检测亚硫酸氢根离子及水合肼的含量。本发明的另一目的是提供一种上述能够同时分别识别HSO3 -和水合肼的双功能荧光探针的制备方法。本发明还有一目的是提供一种上述检测HSO3 -及水合肼的双功能荧光探针的应用。
技术方案:为实现上述发明目的,本发明采用的技术方案为:
一种检测HSO3 -及水合肼的双功能荧光探针,为3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物,结构式为:
所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备方法,包括如下步骤:
1)3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮与2-氰基乙酸乙酯进行缩合反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮;
2)3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮与三氟化硼乙醚反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物。
步骤1)中,3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮与2-氰基乙酸乙酯进行缩合反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮,具体的制备过程为:
(1)将0.02mol 3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮、0.02mol 2-氰基乙酸乙酯、0.1mL哌啶和15mL乙醇依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应5h,用薄层色谱法跟踪反应进程;
(2)反应液经蒸馏去除乙醇后,加入50mL乙酸乙酯,再用蒸馏水洗涤至中性,有机相经无水硫酸钠干燥、过滤、浓缩回收溶剂后,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮粗产物;
(3)3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮粗产物经柱层析,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮。
步骤(3)中,柱层析条件为:100~200目硅胶,洗脱剂石油醚/乙酸乙酯的体积比为15∶1。
步骤2)中,3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮与三氟化硼乙醚反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物,具体制备过程为:
(1)将0.02mol 3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮、0.04mol三氟化硼乙醚和15mL二氯甲烷依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应2h,用薄层色谱法跟踪反应进程;
(2)反应液经蒸馏去除二氯甲烷后,加入50mL乙酸乙酯,再用蒸馏水洗涤至中性,有机相经无水硫酸钠干燥、过滤、浓缩回收溶剂,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物粗产物;
(3)3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物粗产物经甲醇重结晶,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物晶体。
所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物作为双功能荧光探针的应用。
所述的应用,3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物与HSO3 -根离子结合后,溶液的荧光颜色由蓝绿色变为蓝色;3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物与水合肼反应后,溶液的荧光颜色由蓝绿色变为黄色。
所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物在检测水合肼中的应用。
所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物在检测水合肼中的应用。
有益效果:与现有技术相比,本发明的利用天然可再生资源β-蒎烯的衍生物诺蒎酮为原料制备新型的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物能与HSO3 -根离子络合后,溶液的荧光颜色由蓝绿色变为蓝色;3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物与水合肼反应后,溶液的荧光颜色由蓝绿色变为黄色。该化合物可作为双功能荧光探针在识别HSO3 -根离子和水合肼方面的具有很好的应用。
附图说明
图1是不同浓度水合肼对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物荧光光谱图的影响结果图;
图2是不同浓度水合肼对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物紫外吸收光谱图的影响结果图;
图3是不同浓度HSO3 -离子对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物荧光光谱图的影响结果图;
图4是不同浓度HSO3 -离子对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物紫外吸收光谱图的影响结果图。
具体实施方式
下面结合具体实施例对本发明做进一步的说明。
实施例1
3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备方法,反应式:
具体步骤如下:
1、3-(4′-溴苯甲酰基)诺蒎酮的制备:
将0.06mol氢化钠加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,氮气保护下加入8mL乙二醇二甲醚,并将0.02mol诺蒎酮溶于9mL乙二醇二甲醚后缓慢加入烧瓶中,加热回流0.5h后,将溶解于9mL乙二醇二甲醚的0.024mol 4-溴苯甲酸甲酯缓慢加入烧瓶中回流反应7~8h,用薄层色谱法跟踪反应进程。反应结束后,将反应液用冰浴冷却,缓慢加入15mL蒸馏水使氢化钠水解,用45mL乙酸乙酯萃取3次,合并的有机相经蒸馏水洗涤至中性,再经无水硫酸钠干燥、过滤、浓缩回收溶剂后,得到3-(4′-溴苯甲酰基)诺蒎酮粗产物。3-(4′-溴苯甲酰基)诺蒎酮粗产物经甲醇重结晶,得到3-(4′-溴苯甲酰基)诺蒎酮晶体。得率为59.1%,纯度为96.9%。熔点:133.3-133.9℃.1H NMR(400MHz,CDCl3)δ:15.51(s,1H),7.60(s,4H),2.69(t,J=2.9Hz,2H),2.63-2.53(m,2H),2.31(tt,J=6.0,3.1Hz,1H),1.47(d,J=9.6Hz,1H),1.37(s,3H),0.98(s,3H).13C NMR(100MHz,CDCl3)δ:209.42,171.40,134.07,131.50,129.79,124.66,104.06,54.77,39.80,39.56,28.26,27.73,25.81,21.55.HRMS(m/z):[M+Na]+calculated for C16H17BrO2+Na+,343.0310;found,343.0304.
2、3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮的制备:
将0.02mol 3-(4′-溴苯甲酰基)诺蒎酮、0.03mol对甲酰基苯硼酸、0.002mol醋酸钯和20mL乙醇依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应4h,用薄层色谱法跟踪反应进程。反应液经蒸馏去除乙醇后加入50mL乙酸乙酯,用蒸馏水洗涤至中性,再经无水硫酸钠干燥、过滤、浓缩回收溶剂,得到3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮粗产物。3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮粗产物经柱层析(100-200目硅胶,洗脱液石油醚/乙酸乙酯比为30:1),得到3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮。熔点为151-152℃,得率为56.3%,纯度为97.1%。1H NMR(400MHz,CDCl3)δ:15.49(s,1H),10.01(s,1H),7.97-7.87(m,2H),7.79-7.70(m,4H),7.67-7.60(m,2H),2.69(dd,J=3.2,1.6Hz,2H),2.59-2.46(m,2H),2.25(tt,J=6.1,3.1Hz,1H),1.42(d,J=9.6Hz,1H),1.30(s,3H),0.92(s,3H).13C NMR(100MHz,DMSO)δ:204.13,186.51,166.63,140.84,136.06,130.36,130.05,125.09,123.65,122.50,121.91,98.95,49.58,34.63,34.33,23.12,22.53,20.59,16.31.HRMS(m/z):[M+Na]+calculated for C23H22O3+Na+,369.1467;found,369.1464.
3、3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮的制备:
将0.02mol 3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮、0.02mol 2-氰基乙酸乙酯、0.1mL哌啶和15mL乙醇依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应5h,用薄层色谱法跟踪反应进程。反应液经蒸馏去除乙醇后,加入50mL乙酸乙酯,再用蒸馏水洗涤至中性,有机相经无水硫酸钠干燥、过滤、浓缩回收溶剂,得到3-(4″-1-氰基-2-乙酯基-1′,1″-联苯-4′-羰基)诺蒎酮粗产物。粗产物经柱层析(100~200目硅胶,洗脱液石油醚/乙酸乙酯比为15∶1),得到3-(4″-1-氰基-2-乙酯基-1′,1″-联苯-4′-羰基)诺蒎酮。熔点为161-162℃,得率为42.3%,纯度为98.2%。1H NMR(400MHz,CDCl3)δ:15.56(s,1H),8.29(s,1H),8.11(dd,J=8.3,5.1Hz,2H),7.84(d,J=6.6Hz,1H),7.78(dd,J=8.2,5.7Hz,2H),7.74-7.69(m,2H),4.41(q,J=7.1Hz,2H),4.32(qd,J=7.2,3.4Hz,2H),3.86(dt,J=20.4,7.6Hz,1H),2.76(t,J=2.3Hz,1H),2.63-2.57(m,2H),2.32(tt,J=5.9,3.1Hz,1H),1.41(d,J=7.1Hz,3H),1.34(t,J=2.1Hz,1H),1.30-1.24(m,3H),0.99(s,2H).13C NMR(101MHz,CDCl3)δ:209.42,171.80,162.52,154.21,144.84,140.97,135.36,131.75,130.89,128.96,127.83,127.00,115.63,104.22,102.89,62.80,54.83,39.86,39.59,28.38,27.77,25.83,21.57,14.19.
4、3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备:
将0.02mol 3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮、0.04mol三氟化硼乙醚和15mL二氯甲烷依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应2h,用薄层色谱法跟踪反应进程。反应液经蒸馏去除二氯甲烷后,加入50mL乙酸乙酯,再用蒸馏水洗涤至中性,有机相经无水硫酸钠干燥、过滤、浓缩回收溶剂,得到3-(4″-1-氰基-2-乙酯基-1′,1″-联苯-4′-羰基)诺蒎酮基氟硼络合物粗产物。3-(4″-1-氰基-2-乙酯基-1′,1″-联苯-4′-羰基)诺蒎酮基氟硼络合物粗产物经甲醇重结晶,得到3-(4″-1-氰基-2-乙酯基-1′,1″-联苯-4′-羰基)诺蒎酮基氟硼络合物晶体。熔点为217.4-218.4℃,得率为75.9%,纯度为97.9%。1H NMR(400MHz,CDCl3)δ:8.30(s,1H),8.13(s,1H),8.06-8.03(m,2H),7.78(dd,J=8.4,3.2Hz,4H),4.41(q,J=7.1Hz,2H),2.99-2.86(m,2H),2.84(t,J=5.5Hz,1H),2.72(dt,J=10.9,5.7Hz,1H),2.45(dt,J=5.6,2.9Hz,1H),1.59(s,1H),1.53(d,J=10.1Hz,1H),1.44(d,J=3.2Hz,3H),1.41(d,J=7.1Hz,2H),1.25(s,1H),1.00(s,3H).13C NMR(100MHz,CDCl3)δ:202.89,178.39,162.38,153.96,143.95,143.67,133.29,131.76,130.23,127.98,127.26,115.50,104.70,103.43,62.86,51.43,40.55,39.78,29.70,28.48,28.34,25.53,21.50,14.18.
实施例2
将3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物溶于PBS缓冲液(pH=7.2,10mM,7/3(v/v)乙醇/水),配制成浓度为1.0×10-6M的溶液,同样将水合肼溶于PBS缓冲溶液配成浓度为0、1、2、4、6、8、10、20、40、60、80、100、200×10-7M的溶液。测得不同浓度的水合肼对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的荧光光谱,如图1所示。结果表明,化合物在490nm左右的荧光强度明显减弱,在550nm左右的荧光强度明显增强。说明3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物可以作为荧光比率型探针的对水合肼进行检测。
实施例3
将3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物溶于PBS缓冲液(pH=7.2,10mM,7/3(v/v)乙醇/水),配制成浓度为1.0×10-6M的溶液,同样将水合肼溶于PBS缓冲溶液配成浓度为0、1、2、4、6、8、10、20、40、60、80、100、200×10-7M的溶液。测得不同浓度的水合肼对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的紫外吸收光谱,如图2所示。结果表明,化合物在360nm左右的紫外吸收强度明显减弱,在280nm左右的紫外吸收强度明显增强。说明3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物可以作为颜色比率型探针的对水合肼进行检测。
实施例4
将3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物溶于PBS缓冲液(pH=7.2,10mM,7/3(v/v)乙醇/水),配制成浓度为1.0×10-6M的溶液,同样将HSO3 -溶于PBS缓冲溶液配成浓度为0、1、2、4、6、8、10、20、40、60、80、100、200×10-7M的溶液。测得不同浓度的HSO3 -对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的荧光光谱,如图3所示。结果表明,化合物在490nm左右的荧光强度明显减弱,在425nm左右的荧光强度明显增强。说明3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物可以作为荧光比率型探针的对HSO3 -进行检测。
实施例5
将3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物溶于PBS缓冲液(pH=7.2,10mM,7/3(v/v)乙醇/水),配制成浓度为1.0×10-6M的溶液,同样将HSO3 -溶于PBS缓冲溶液配成浓度为0、1、2、4、6、8、10、20、40、60、80、100、200×10-7M的溶液。测得不同浓度的HSO3 -对3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的紫外吸收光谱,如图4所示。结果表明,化合物在280nm左右的紫外吸收强度明显减弱,在260nm左右的紫外吸收强度明显增强。说明3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物可以作为颜色比率型探针的对HSO3 -进行检测。
Claims (9)
1.一种检测HSO3 -及水合肼的双功能荧光探针,其特征在于,为3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物,结构式为:
2.权利要求1所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备方法,其特征在于,包括如下步骤:
1)3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮与2-氰基乙酸乙酯进行缩合反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮;
2)3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮与三氟化硼乙醚反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物。
3.根据权利要求2所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备方法,其特征在于,步骤1)中,3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮与2-氰基乙酸乙酯进行缩合反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮,具体的制备过程为:
(1)将0.02mol3-(4″-甲酰基-1′,1″-联苯-4′-羰基)诺蒎酮、0.02mol2-氰基乙酸乙酯、0.1mL哌啶和15mL乙醇依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应5h,用薄层色谱法跟踪反应进程;
(2)反应液经蒸馏去除乙醇后,加入50mL乙酸乙酯,再用蒸馏水洗涤至中性,有机相经无水硫酸钠干燥、过滤、浓缩回收溶剂后,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮粗产物;
(3)3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮粗产物经柱层析,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮。
4.根据权利要求3所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备方法,其特征在于,步骤(3)中,柱层析条件为:100~200目硅胶,洗脱剂石油醚/乙酸乙酯的体积比为15∶1。
5.根据权利要求2所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物的制备方法,其特征在于,步骤2)中,3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮与三氟化硼乙醚反应,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物,具体制备过程为:
(1)将0.02mol3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮、0.04mol三氟化硼乙醚和15mL二氯甲烷依次加入配有搅拌器、温度计和回流冷凝器的三口烧瓶中,在回流状态下反应2h,用薄层色谱法跟踪反应进程;
(2)反应液经蒸馏去除二氯甲烷后,加入50mL乙酸乙酯,再用蒸馏水洗涤至中性,有机相经无水硫酸钠干燥、过滤、浓缩回收溶剂,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物粗产物;
(3)3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物粗产物经甲醇重结晶,得到3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物晶体。
6.权利要求1所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物作为双功能荧光探针的应用。
7.根据权利要求6所述的应用,其特征在于,3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物与HSO3 -根离子结合后,溶液的荧光颜色由蓝绿色变为蓝色;3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物与水合肼反应后,溶液的荧光颜色由蓝绿色变为黄色。
8.权利要求1所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物在检测水合肼中的应用。
9.权利要求1所述的3-(4″-((2-氰基)丙烯酸乙酯基)-1′,1″-联苯-4′-羰基)诺蒎酮氟硼络合物在检测水合肼中的应用。
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