CN115231987A - 湾区溴代Bisanthene的合成方法 - Google Patents
湾区溴代Bisanthene的合成方法 Download PDFInfo
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Abstract
本发明属于有机光电功能材料技术领域,具体公开了一种在bisanthene海湾区引入单溴和双溴得到化合物Bisanthene‑Br和Bisanthene‑2Br的方法。本发明以10,10'‑二溴‑9,9'‑联二蒽为原料,分别通过赫克偶联反应,脱氢环化以及亲电取代反应在bisanthene海湾区成功引入单溴和双溴。所得的两个化合物都有高稳定性,它们的成功制备为基于bisanthene亚结构的更多复杂化合物的合成提供了可能。为了验证所得化合物的稳定性与可修饰性,我们将Bisanthene‑2Br在高温条件下进行钯催化偶联胺化反应成功制备了双吡咯掺杂的bisanthene衍生物BA‑2N。
Description
技术领域
本发明涉及一种在bisanthene海湾区引入单Br和双Br来高效合成Bisanthene-Br与Bisanthene-2Br的方法。
背景技术
稠环芳烃可以视为二维石墨烯片段,而bisanthene作为稠环芳烃中的重要一员,由于其优异的性能得到了广泛关注。如bisanthene 的平面性使分子间的 π-π 相互作用增强,易于堆砌成有序的聚集体,从而使分子具有较强的载流子传输能力;bisanthene的吸收光谱位于近红外区;它的衍生物可以成为较好的电子给体、电子受体材料。综上,bisanthene类化合物具有优越的有机光电性能,在有机光电器件如有机太阳能电池、有机发光二极管、生物探针、刺激-响应型材料等领域有广泛应用前景。然而bisanthene母核本身存在稳定性不高、溶解性较差、湾区位置反应活性极低等缺点,这些缺点使它的进一步官能团化及应用推广受到限制。本发明通过巧妙的分子设计与反应条件的仔细探索,实现了在bisanthene海湾区精准地引入单Br和双Br得到化合物Bisanthene-Br与Bisanthene-2Br。这两个化合物都具有高稳定性,且它们的成功合成使基于bisanthene亚结构的更多化合物的开发成为了可能。为了验证所得到化合物稳定性与可修饰性的猜想,使用已制备的Bisanthene-2Br在较高反应温度(110℃)下以钯作催化剂与4-丁氧基苯胺发生交叉偶联胺化反应,成功制备了双吡咯掺杂的bisanthene衍生物BA-2N。由此可见,Bisanthene-Br与Bisanthene-2Br具有很高的稳定性,这使得合成更多具有特殊结构的石墨烯成为可能。本发明的反应步骤简单,分离及纯化工艺简便,有机溶剂用量少,产品产率高,有利于实现规模化合成。
发明内容
以10,10'-二溴-9,9'-联二蒽为原料,分别通过赫克偶联反应,脱氢环化和亲电取代在bisanthene海湾区成功引入单Br和双Br得到化合物Bisanthene-Br与Bisanthene-2Br。这些化合物的制备过程为:
本发明优点在于:本发明所提供的在bisanthene海湾区引入单Br和双Br来制备bisanthene溴化物的合成方法工艺简单; 所得到的Bisanthene-Br与Bisanthene-2Br可实现对bisanehene的进一步多样化结构修饰,从而更加方便地调控分子光电性能。本发明合成工艺简单,成本低,有利于实现大批量合成,且所得产品在光电材料方面具有广泛的应用前景。
步骤一、按照质量比,乙酸钯:10,10'-二溴-9,9'-联二蒽:2-双环己基膦-2',6'-二甲氧基联苯:碳酸钾:五氟苯=1:2.86:3.66:4.29:37.60溶解在乙酸异丙酯中,在82℃下搅拌反应48小时;反应液冷却至室温后,用体积比为水:二氯甲烷=1:3的混合溶剂萃取反应液,得到有机相,水相继续用二氯甲烷萃取两次,随后合并有机相;用无水硫酸钠干燥10分钟,过滤;减压蒸馏回收溶剂;粗产物以体积比为1:20的二氯甲烷和石油醚混合溶剂作为淋洗剂,经中性三氧化二铝柱层析分离;减压蒸馏回收溶剂后得到淡黄色固体为目标产物A。
步骤二、按照质量比,二氯二氰基苯醌:A:三氟甲烷磺酸钪:三氟甲磺酸=1:1.21:3.03:7.71溶解在氯苯中,100℃下搅拌反应48小时;反应液冷却至室温后,加入0.5ml水合肼搅拌5分钟进行淬灭;减压蒸馏回收溶剂;粗产物以体积比为1:5的石油醚和甲苯混合溶剂作为淋洗剂,经中性三氧化二铝柱层析分离;减压蒸馏回收溶剂后得到蓝色固体为目标产物B。
步骤三、按照质量比,N-溴代丁二酰亚胺:B=1:1.81溶解在二氯甲烷中,室温搅拌2小时;反应结束后,加入0.3ml水合肼搅拌5分钟进行淬灭;反应液减压蒸馏回收溶剂;粗产物以体积比为1:3的二氯甲烷和石油醚混合溶剂作为淋洗剂,经中性三氧化二铝柱层析分离;减压蒸馏回收溶剂得到固体混合物。粗产物用甲醇重结晶,过滤干燥得到蓝色固体为目标产物Bisanthene-2Br。
步骤四、按照质量比,N-溴代丁二酰亚胺:B=1:4.17溶解在二氯甲烷中,室温搅拌3.5小时;反应结束后,加入0.3ml水合肼搅拌5分钟进行淬灭;反应液减压蒸馏回收溶剂;粗产物以体积比为1:6的二氯甲烷和石油醚混合溶剂作为淋洗剂,经中性三氧化二铝柱层析分离;减压蒸馏回收溶剂得到固体混合物。粗产物用甲醇重结晶,过滤干燥得到蓝色固体为目标产物Bisanthene-Br。
附图说明
1.图1为产物Bisanthene-2Br的核磁共振氢谱图。
2.图2为产物Bisanthene-2Br的MALDI-TOF质谱图。
3.图3为产物Bisanthene-Br的核磁共振氢谱图。
具体实施方式
实施例1
将100mg(0.195mmol)10,10'-二溴-9,9'-联二蒽、1316mg(7.833mmol)五氟苯、35mg(0.156mmol)乙酸钯、128mg(0.312mmol)2-双环己基膦-2',6'-二甲氧基联苯及150mg(1.087mol)碳酸钾加入到3.4ml乙酸异丙酯中;在82ºC下搅拌反应48小时;反应液冷却至室温后,用30ml二氯甲烷和10ml水萃取反应液三次,合并有机相;无水硫酸钠干燥10分钟,过滤,减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:20的混合溶剂作为淋洗剂,接收颜色为淡黄色的第一色带,减压蒸馏回收溶剂得到淡黄色固体为目标化合物A:110mg,产率82%。
实施例2
将100mg(0.195mmol)10,10'-二溴-9,9'-联二蒽、1316mg(7.833mmol)五氟苯、17.5mg(0.078mmol)乙酸钯、64mg(0.156mmol)2-双环己基膦-2',6'-二甲氧基联苯及150mg(1.087mmol)碳酸钾加入到3.4ml乙酸异丙酯中;在82℃搅拌反应48小时;反应液冷却至室温后,用30ml二氯甲烷和10ml水萃取反应液三次,合并有机相;无水硫酸钠干燥10分钟,过滤,减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:20的混合溶剂作为淋洗剂,接收颜色为淡黄色的第一色带,减压蒸馏回收溶剂得到淡黄色固体为目标化合物A:27.5mg,产率21%。
实施例3
将200mg(0.29mmol)A、165mg(0.73mmol)二氯二氰基苯醌、500mg(1.016mmol)三氟甲烷磺酸钪、1272mg(8.48mmol)三氟甲磺酸加入到20ml超干氯苯中;加热回流搅拌反应48小时;反应液冷却至室温后,加入3.0ml水合肼搅拌5分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以石油醚和甲苯体积比为1:5的混合溶剂作为淋洗剂,接收颜色为蓝色的第二色带,减压蒸馏回收溶剂得到蓝色固体为目标化合物B:20mg,产率10%。
实施例4
将200mg(0.29mmol)A、165mg(0.73mmol)二氯二氰基苯醌、500mg(1.016mmol)三氟甲烷磺酸钪、1272mg(8.48mmol)三氟甲磺酸加入到20ml超干氯苯中;100℃下搅拌反应48小时;反应液冷却至室温后,加入3.0ml水合肼搅拌5分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以石油醚和甲苯体积比为1:5的混合溶剂作为淋洗剂,接收颜色为蓝色的第二色带,减压蒸馏回收溶剂得到蓝色固体为目标化合物B:40mg,产率20%。
实施例5
将200mg(0.29mmol)A、165mg(0.73mmol)二氯二氰基苯醌、500mg(1.016mmol)三氟甲烷磺酸钪、1356.80mg(9.05mmol)三氟甲磺酸加入到20ml超干氯苯中;100℃下搅拌反应48小时;反应液冷却至室温后,加入3.0ml水合肼搅拌5分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以石油醚和甲苯体积比为1:5的混合溶剂作为淋洗剂,接收颜色为蓝色的第二色带,减压蒸馏回收溶剂得到蓝色固体目标化合物B:20mg,产率10%。
实施例6
将200mg(0.30mmol)B、110mg(0.60mmol)N-溴代丁二酰亚胺加入到20ml二氯甲烷中;室温下搅拌反应2小时;反应结束后,加入3ml水合肼搅拌3分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:3的混合溶剂作为淋洗剂,接收颜色为蓝色的第一色带,减压蒸馏回收溶剂得到固体混合物;粗产物用少量甲醇重结晶,过滤干燥后得到蓝色固体目标化合物Bisanthene-2Br:143mg,产率57%。
实施例7
将200mg(0.30mmol)B、330mg(1.86mmol)N-溴代丁二酰亚胺加入到20ml二氯甲烷中;室温下搅拌反应2小时;反应结束后。加入3ml水合肼搅拌3分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:3的混合溶剂作为淋洗剂,接收颜色为蓝色的第一色带,减压蒸馏回收溶剂得到固体混合物;粗产物用少量甲醇重结晶,过滤干燥后得到蓝色固体目标化合物Bisanthene-2Br:100mg,产率40%。
实施例8
将200mg(0.30mmol)B、110mg(0.60mmol)N-溴代丁二酰亚胺加入到20ml二氯甲烷中;室温下搅拌反应30分钟;反应结束后,加入3ml水合肼搅拌3分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:3的混合溶剂作为淋洗剂,接收颜色为蓝色的第一色带,减压蒸馏回收溶剂得到固体混合物;粗产物用少量甲醇重结晶,过滤干燥后得到蓝色固体目标化合物Bisanthene-2Br:93mg,产率37%。
实施例9
将200mg(0.30mmol)B、48mg(0.27mmol)N-溴代丁二酰亚胺加入到40ml二氯甲烷中;室温下搅拌反应3.5小时;反应结束后,加入3ml水合肼搅拌3分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:6的混合溶剂作为淋洗剂,接收颜色为蓝色的第二色带,减压蒸馏回收溶剂得到固体混合物;粗产物用少量甲醇重结晶,过滤干燥后得到蓝色固体目标化合物Bisanthene-Br:137mg,产率60%。
实施例10
将200mg(0.30mmol)B、48mg(0.27mmol)N-溴代丁二酰亚胺加入到60ml二氯甲烷中;室温下搅拌反应3.5小时;反应结束后,加入3ml水合肼搅拌3分钟;减压蒸馏回收溶剂;混合物使用中性三氧化二铝柱层析分离,以二氯甲烷和石油醚体积比为1:6的混合溶剂作为淋洗剂,接收颜色为蓝色的第二色带,减压蒸馏回收溶剂得到固体混合物;粗产物用少量甲醇重结晶,过滤干燥后得到蓝色固体目标化合物Bisanthene-Br:114mg,产率50%。
图1为产物Bisanthene-2Br核磁共振氢谱图;1H NMR (500 MHz, CD2Cl2): δ(ppm) = 9.49 (dd, J = 14.5, 7.6 Hz, 2H), 7.89 (t, J = 9.5 Hz, 2H), 7.71 (m,2H), 7.57 (dd, J = 29.1, 8.5 Hz, 2H), 7.27 (dd, J = 26.9, 9.1 Hz, 2H).
图3为产物Bisanthene-Br核磁共振氢谱图;1H NMR (500 MHz, CDCl3): δ (ppm)= 9.45 (d, J = 7.5 Hz, 1H), 8.41 (t, J = 7.5 Hz, 2H), 7.75 (d, J = 9.2 Hz,1H), 7.60 – 7.54 (m, 3H), 7.43 (d, J = 8.5 Hz, 1H), 7.39 (d, J = 8.5 Hz, 1H),7.32 (d, J = 8.5 Hz, 1H), 7.11 (d, J = 9.3 Hz, 1H).
Claims (6)
3.所述化合物A的合成,其特征在于,投料质量比为乙酸钯:10,10'-二溴-9,9'-联二蒽:2-双环己基膦-2',6'-二甲氧基联苯:碳酸钾:五氟苯=1:2.86:3.66:4.29:37.60;反应温度为82℃,反应时间48小时。
4.所述化合物B的合成,其特征在于,投料质量比为二氯二氰基苯醌:A:三氟甲烷磺酸钪:三氟甲磺酸=1:1.21:3.03:7.71;反应温度为100℃,反应时间48小时。
5.如权利要求1所述化合物Bisanthene-2Br的合成,其特征在于,投料质量比为N-溴代丁二酰亚胺:B=1:1.81;反应温度为室温;反应时间2小时;使用水合肼淬灭反应。
6.如权利要求2所述化合物Bisanthene-Br的合成,其特征在于,投料质量比为N-溴代丁二酰亚胺:B=1:4.17;反应温度为室温;反应时间3.5小时;使用水合肼淬灭反应。
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