CN108047255A - 一种新化合物及制备方法和用途 - Google Patents

一种新化合物及制备方法和用途 Download PDF

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CN108047255A
CN108047255A CN201711333777.XA CN201711333777A CN108047255A CN 108047255 A CN108047255 A CN 108047255A CN 201711333777 A CN201711333777 A CN 201711333777A CN 108047255 A CN108047255 A CN 108047255A
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fluorenes
spiral shell
benzodiazine
pyridine
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江国庆
姜国民
施磊
吴增辉
谢晓玲
邓自发
陈婷婷
李忠强
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Nantong University
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    • C07D471/02Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
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    • C07D471/02Heterocyclic compounds containing nitrogen atoms as the only ring hetero atoms in the condensed system, at least one ring being a six-membered ring with one nitrogen atom, not provided for by groups C07D451/00 - C07D463/00 in which the condensed system contains two hetero rings
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Abstract

本发明公开了一种新化合物Ⅰ及制备方法和用途,以邻菲罗啉为起始原料,经氧化反应、格氏反应和Friedel‑Crafts酰基化反应合成得到了乙酰基氮杂螺二芴,再与2‑氨基吡啶‑3‑甲醛通过Friedlander反应合成目标产物2'‑(1,8‑二氮杂萘‑2‑基)螺[环戊二烯并[1,2‑b:5,4‑b']二吡啶‑5,9'‑芴]。本发明在4,5‑二氮杂‑9,9'‑螺二芴上引入1,8‑二氮杂萘,通过多步反应,制备得到了产品,方法简便、易操作,产品熔点:>300℃,收率高。

Description

一种新化合物及制备方法和用途
技术领域
本发明涉及一种新化合物及其制备方法和用途。
背景技术
OLED是有机发光二级管(Organic Light Emitting Diode)
的简称,是一种在电场作用下,运用载流子注入和复合导致有机材料发光的显示器件。在众多显示和照明技术当中,有机电致发光器件显示出极大的优越性,具体表现为:低成本、低功耗、全固态、对比度高、主动发光、宽视角、发光效率高、响应速度快、超轻薄、低电压直流驱动、工作温度范围宽、抗震能力强、以及易实现大尺寸柔屏显示等等。因此,OLED在显示、照明、传感器、通讯等诸多领域里应用广泛。芴类具有良好的光热稳定性和成膜性能,是一类重要的蓝色电致发光材料。近年来,螺芴类芳香化合物因其独特的螺形结构、较大的共轭平面和双极注入电子性质,在有机发光二极管、场效应晶体管、太阳能电池、塑料激光等领域都引起了很大关注。在螺芴环上或者在侧臂上引入杂原子取代基,对材料的光化学等性质产生很大影响。杂原子的引入可以调整聚合物的能级,含N,O,S等杂原子的芳香类取代基被引入,能够提高化合物的空穴注入能力,降低器件的启动电压,在光电材料中有较好的应用前景。4,5-二氮杂-9,9'-螺二芴 (DSBF)除了具有和螺二芴一样的结构,具有由共同的四面体原子和刚性主链连接的两个几乎相互垂直的π电子体系,还包含杂原子N,作为高电子亲和力的配体,便于与多种金属进行螯合,DSBF已经成功用于改善蓝色发射体OLED的电子注入和传输性质。
发明内容
本发明的目的在于提供一种具有新化学结构的2'-(1,8-二氮杂萘 -2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶-5,9'-芴]及制备方法和用途。
本发明的技术解决方案是:
一种2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶 -5,9'-芴],其特征是:化学结构式为:
一种2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶 -5,9'-芴]的制备方法,其特征是:包括下列步骤:
(1)将邻菲罗啉与氢氧化钾溶液、高锰酸钾混合反应,得到化合物1:
(2)将化合物1、THF在Ar保护下与2-溴联苯格氏试剂反应,得到化合物2:
(3)将化合物2与冰醋酸、浓硫酸混合反应,得到化合物3:
(4)将化合物3和二氯甲烷、无水三氯化铝、乙酰氯混合反应,得到化合物4:
(5)将化合物4与冰醋酸、2-氨基吡啶-3-甲醛、硫酸混合反应,得到目标产物:
一种2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶 -5,9'-芴]在制备蓝色电致发光材料中的应用。
本发明在4,5-二氮杂-9,9'-螺二芴上引入1,8-二氮杂萘,通过多步反应,制备得到了产品,方法简便、易操作,产品熔点:>300℃,收率高。
附图说明
下面结合附图和实施例对本发明作进一步说明。
图1是2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶 -5,9'-芴]的1H NMR图。
图2是2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶 -5,9'-芴]的质谱图。
具体实施方式
实施例1:化合物1的合成
在5L三口烧瓶中,加入邻菲罗啉(36g,0.2mol)和新配制的氢氧化钾溶液(2.5L,0.35M),搅拌,加热回流。将105.2g高锰酸钾溶解在400mL水中,加热溶解后,用恒压滴液漏斗加入反应混合液中,控制滴入速度,约4h滴完,继续回流反应5h。趁热过滤,水洗滤饼,得到橘黄色滤液,静置冷却至室温,用二氯甲烷(3×20mL) 萃取,合并萃取液,用无水Na2SO4干燥,旋蒸浓缩得淡黄色固体,最后用甲醇重结晶,真空干燥,得黄色针状晶体(化合物1)(17.3g, 0.095mol),收率为47.5%。mp:213℃。
FT-IR(KBr,cm-1):3034,1716,1558,1401,759.
1H NMR(CDCl3,400MHz,δH,ppm):8.820(dd,J=4.4,1.6Hz,2H),8.02 (dd,J=7.6,1.6Hz,2H),7.382(dd,J=7.6,5.2Hz,2H).
实施例2:化合物2的合成
(1)2-溴联苯格氏试剂的制备
于500mL三口烧瓶中,加入镁屑(4.8g,0.2mol)及一小粒碘,称取2-溴联苯(46.6g,0.2mol)溶解于300mL无水的THF中,加入恒压滴液漏斗中。Ar保护,先将混合溶液体积的5%加入烧瓶,缓慢搅拌,升温至85℃启动反应,当出现剧烈冒泡时,打开滴液漏斗加入剩余混合液,约1h滴完,继续反应回流3h。
(2)化合物2的合成
于1L三口烧瓶中,加入氮杂芴酮(化合物1)(21.86g,0.12mol) 和150mLTHF,加热溶解,Ar保护,用恒压滴液漏斗滴加新制的格氏试剂,约1.5h滴完。继续反应16h。过滤,用新蒸的THF洗滤饼,抽干,将滤饼加入饱和氯化铵溶液中,搅拌10h,陈化,过滤,水洗滤饼数次,真空干燥得粉色固体(化合物2)(34.4g,0.102mol),收率为85.2%。
FT-IR(KBr,cm-1):3250,3073,1567,1399,1162,1021,923,772,754,702.
1H NMR(CDCl3,400MHz,δH,ppm):8.551(dd,J=8.0,1.2Hz,1H),8.130 (dd,J=4.8,1.6Hz,2H),7.563(td,J=7.6,1.6Hz,1H),7.501(dd,J=7.6,1.6Hz,2H ),7.332(td,J=7.2,1.2Hz,1H),6.952(m,2H),6.877(dd,J=7.2,Hz,1H),6.817(t, J=7.2Hz,1H),6.567(t,J=8.0Hz,2H),5.83(dd,J=8.0Hz,2H),4.201(s,1H,OH).
实施例3:化合物3的合成
于500mL三口烧瓶中,加入化合物2(33.64g,0.1mol),250mL 冰醋酸,搅拌溶解,滴加3mL浓硫酸,回流反应8h以上。冷却至室温,倒入冰水中,并用氢氧化钠水溶液中和,持续搅拌10h,静置,过滤,水洗滤饼数次,真空干燥得淡黄色固体(化合物3)(25.6g,0.0805mol),收率为80.5%。
FT-IR(KBr,cm-1):3041,1446,749,727.
1HNMR(CDCl3,400MHz,δH,ppm):8.796(t,J=7.2Hz,2H),7.891(d,J=8.0Hz, 2H),7.453(td,J=7.6,0.8Hz,2H),7.199(d,J=3.2Hz,4H),7.179(td,J=7.6,0.8H z,2H),6.738(d,J=7.6Hz,2H).
实施例4:化合物4的合成
于250mL三口烧瓶中,加入化合物3(9.55g,0.030mol),50mL 二氯甲烷,搅拌溶解;无水三氯化铝(15g,0.113mol)研碎,分批加入三口烧瓶中;取乙酰氯(5.61g,0.714mol),用10mL二氯甲烷稀释,慢慢滴入反应体系,乙酰氯滴完后,升温回流反应24h。反应液冷却至室温,慢慢倒入碎冰中,搅拌,萃取,有机相用饱和碳酸钠水溶液洗3次,调节pH约为6-7,再用水洗3次;加入无水硫酸钠干燥,过滤后旋蒸,干燥,得粗品10g。粗品经柱色谱分离提纯,得化合物4(7.3g,0.02mol),收率为66.7%。
FT-IR(KBr,cm-1):3041,11671,1605,1421,1401,1357,1268,1162,751.
1HNMR(CDCl3,400MHz,δH,ppm):8.776(dd,J=4.8,1.6Hz,2H),8.071(dd,J=8.0,1.6Hz,1H),7.956(td,J=6.4,1.6Hz,2H),7.473(td,J=7.6,0.8Hz,1H),7.314 (s,1H),7.234(td,J=7.6,0.8Hz,1H).7.137(m,4H),6.771(d,J=7.6,1H),2.441(s, 3H).
实施例5:化合物5的合成
于100mL两口烧瓶中,加入冰醋酸20mL,化合物4(1.8g, 0.005mol),2-氨基吡啶-3-甲醛(0.61g,0.005mol),室温下搅拌, Ar保护,慢慢滴加发烟硫酸(26%)2mL,继续搅拌30min,回流反应10h。反应混合液冷却至室温,慢慢倾入碎冰中,搅拌析出黄色沉淀;用浓氨水调节pH为7-8,得乳白色沉淀,静置过夜,过滤,水洗滤饼数次,真空干燥,得粗品2.1g。粗品经柱色谱分离提纯,最后用二氯甲烷和甲醇重结晶,得到化合物5(1.56g,0.0035mol),收率为70.0%。熔点:>300℃。
FT-IR(KBr,cm-1):3006,2941,1602,1562,1468,1452,1399,1165,1140,1037,807,798,785,748.
1HNMR(CDCl3,400MHz,δH,ppm):9.054(s,1H),8.759(d,J=4.4Hz,2H),8.47 9(d,J=8.0Hz,1H),8.171(t,J=8.0Hz,2H),8.056(d,J=8.0Hz,1H),7.594(d,J=7. 6Hz,1H),7.840(d,J=7.6Hz,1H),7.704(s,1H),7.467-7.404(m,2H),7.183-7.1 15(m,5H),7.471(t,J=7.6Hz,1H),7.206-7.132(m,5H),6.746(d,J=7.6Hz,1H).
13CNMR(CDCl3,400MHz,δC,ppm):159.508,158.947,155.877,153.87 2,150.410,147.035,146.736,143.930,143.505,141.117,138.550,137.835,1 36.828,132.034,128.790,128.728,128.646,123.889,123.857,123.304,121.861,
121.714,120.942,120.827,119.699,61.713.ESI-MS:m/z=445.9(M+),calcdfor C31H18N4:446.1.元素分析,计算值:C83.39%,H 4.06%,N12.55%;实测值:C83.42%,H4.11%,N12.47%。
化合物5可用于制备蓝色电致发光材料。

Claims (3)

1.一种2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶-5,9'-芴],其特征是:化学结构式为:
2.一种2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶-5,9'-芴]的制备方法,其特征是:包括下列步骤:
(1)将邻菲罗啉与氢氧化钾溶液、高锰酸钾混合反应,得到化合物1:
(2)将化合物1、THF在Ar保护下与2-溴联苯格氏试剂反应,得到化合物2:
(3)将化合物2与冰醋酸、浓硫酸混合反应,得到化合物3:
(4)将化合物3和二氯甲烷、无水三氯化铝、乙酰氯混合反应,得到化合物4:
(5)将化合物4与冰醋酸、2-氨基吡啶-3-甲醛、硫酸混合反应,得到目标产物:
3.一种权利要求1所述的2'-(1,8-二氮杂萘-2-基)螺[环戊二烯并[1,2-b:5,4-b']二吡啶-5,9'-芴]在制备蓝色电致发光材料中的应用。
CN201711333777.XA 2017-12-14 2017-12-14 一种新化合物及制备方法和用途 Pending CN108047255A (zh)

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Application publication date: 20180518