CN110437143B - 一种苄基取代喹啉及衍生物及其合成方法 - Google Patents
一种苄基取代喹啉及衍生物及其合成方法 Download PDFInfo
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Abstract
本发明涉及一种苄基取代喹啉的合成方法。本发明首次采用在4CzIPN光催化剂下,在无氧氛围中,将喹啉类化合物,芳香醛类化合物转化为多取代喳啉及衍生物,制得分子结构稳定,化学性质优良。合成方法的反应原料廉价易得,且不需要经过预处理;反应只需要使用水、溴化锂、酸和光催化剂,节约原材料,减少反应成本;整个反应体系简单,反应条件温和,反应设备较少,实验操作简便,用料来源广泛。
Description
技术领域
本发明涉及一种苄基取代喹啉及衍生物及其合成方法,属于有机化合物合成技术领域。
背景技术
多取代喹啉及衍生物是一类重要的芳杂环化合物,而喹啉的多种衍生物又是重要的药物或生理活性的物质。在光电材料等多领域可能具有潜在的应用。
发明内容
本发明为了补充现有技术的缺陷,提供一种分子结构稳定、化学性质优良的多取代喹啉及衍生物。
本发明解决其技术问题所采用的技术方案是:本发明提供一种苄基取代的喹啉及衍生物,其通式为式I或II:
其中
R1选自:
甲基,苯基
R2选自:
氢原子,卤素基,烷基,三氟烷氧基,苯基或与苯环并列的芳基。
R3选自:
氢原子,卤素基,烷基,三氟烷氧基,与苯环并列的芳基。
R4选自:
甲基,卤素基
本发明还提供合成上述的苄基取代喹啉的合成方法,以4CzIPN作光催化剂,包括以下步骤:
S1:将喹啉类化合物,水,酸,溴化锂,光催化剂与有机溶剂在反应容器内进行充分混合;
S2:氮气氛围下加入芳香醛类化合物,对反应物光照进行反应;
S3:纯化得到苄基取代的喹啉及其衍生物。
优选地,本发明的合成方法,所述喹啉类化合物,是选自C10-C15芳香类喹啉,其通式为式III:
其中
R选自:
卤素基,烷基,苯基。
R3选自:
氢原子,卤素基,烷基,三氟烷氧基,与苯环并列的芳基。
优选地,本发明的合成方法,所述喹啉类化合物选自:4-甲基喹啉,2-苯基喹啉,2-甲基-7-氯喹啉,2-甲基-6-溴喹啉,4,6,8-三甲基喹啉,4,6-二甲基喹啉,4,8-二甲基-6-溴喹啉,4-甲基苯并[5,6]喹啉,4-甲基苯并[7,8]喹啉,4-甲基-6-氯喹啉,4-甲基-6-三氟甲氧基喹啉,4-甲基-6-溴喹啉,4-溴喹啉
优选地,本发明的合成方法,所述醚类化合物,其通式为式IV:
IV
其中
R2选自:
氢原子,卤素基,烷基,三氟烷氧基,苯基或与苯环并列的芳基。
优选地,本发明的合成方法,所述芳香醛类化合物选自:苯甲醛,2-氯苯甲醛,2,4-二氯苯甲醛,2-甲基苯甲醛,2-氯-4-氟苯甲醛,2-溴-4-氯苯甲醛,2-萘苯甲醛,3,4-二甲基苯甲醛,3-甲基苯甲醛,3-氟苯甲醛,3-氯苯甲醛,3-溴苯甲醛,4-苯基苯甲醛,4-氟苯甲醛,4-甲基苯甲醛,4-氯苯甲醛,4-三氟甲氧基苯甲醛,4-溴苯甲醛
优选地,本发明的合成方法,所述酸类化合物选自:盐酸、高氯酸、磷酸、乙酸、三氟乙酸、三氟甲磺酸、对甲苯磺酸之一与磷酸二苯酯的混合物。
优选地,本发明的合成方法,所述喹啉类化合物、芳香醛类化合物、水,溴化锂,酸与催化剂的摩尔比为1∶1~2∶0.5~1.5∶0.5~1∶30~50∶0.01~0.05,反应时长为48h。
优选地,本发明的合成方法,所述有机溶剂为氯苯或1,2-二氯乙烷。
本发明现有技术所产生的有益效果:
(I)本发明在4CzIPN光催化下,在氮气氛围中,将喹啉类化合物,芳香醛类化合物转化为一种苄基取代喹啉的技术方案,制得分子结构稳定;(II)反应原料廉价易得,减少环境污染,减少反应成本;(III)为科研成果又添上精彩的一笔;(IV)采用一锅法直接选择性的合成目标产物且收率高,节约了大量的研制时间与生产周期;(VI)它工艺科学、合理,操作容易,反应步骤少,所需设备少;(VII)它具有原料广泛,低投入、高产出,易于进一步大批量生产和普及推广;(VIII)它具有反应体系简单,反应条件温和,反应设备较少,实验操作简便,用料来源广泛等特点。
附图说明
为了证明本发明的产物,本发明提供部分实施例的核磁氢谱图和核磁碳谱图。
图1-1实施例2产物的核磁氢谱图。
图1-2实施例2产物的核磁碳谱图。
图2-1实施例3产物的核磁氢谱图。
图2-2实施例3产物的核磁碳谱图。
图3-1实施例4产物的核磁氢谱图。
图3-2实施例4产物的核磁碳谱图。
图4-1实施例6产物的核磁氢谱图。
图4-2实施例6产物的核磁碳谱图。
图5-1实施例10产物的核磁氢谱图。
图5-2实施例10产物的核磁碳谱图。
图6-1实施例11产物的核磁氢谱图。
图6-2实施例11产物的核磁碳谱图。
图7-1实施例13产物的核磁氢谱图。
图7-2实施例13产物的核磁碳谱图。
图8-1实施例14产物的核磁氢谱图。
图8-2实施例14产物的核磁碳谱图。
图9-1实施例16产物的核磁氢谱图。
图9-2实施例16产物的核磁碳谱图。
图10-1实施例17产物的核磁氢谱图。
图10-2实施例17产物的核磁碳谱图。
图11是本发明合成方法的反应方程式。
具体实施方式
现在结合附图对本发明作进一步详细的说明。这些附图均为简化的示意图,仅以示意方式说明本发明的基本结构,因此其仅显示与本发明有关的构成。
反应方程式为:
实施例1-17
多取代喹啉及衍生物的合成方法包括以下步骤:
步骤1:将喹啉类化合物(具体物质见表1)、溴化锂,水,酸(具体物质见表1)和加入反应容器中,将4CzIPN催化剂(具体物质见表1)和有机溶剂(具体物质见表1)加入反应容器中混合均匀;
步骤2:将反应容器进行氮气抽放三次,加入芳香醛类化合物,放入反应器蓝光均匀照射(如蓝色LED灯),喹啉类化合物和芳香醛类化合物在溶剂中进行反应,并持续表1中所述的时间;
步骤3:反应完成后进行提纯得到。
所述酸类化合物选自:盐酸、高氯酸、磷酸、乙酸、三氟乙酸、三氟甲磺酸、对甲苯磺酸之一与磷酸二苯酯的混合物。比例为0.8-1.2∶1。
表1:实施例1-17中喹啉类化合物、芳香醛类化合物、酸、水和光催化剂摩尔比和反应时间
*为喹啉类化合物、芳香醛类化合物、酸、水和光催化剂摩尔比
将步骤3后反应容器内的物质进行转化率检测并进行核磁共振,部分实施例的结果如下:
实施例2产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.06(d,J=2.1Hz,1H),7.95(d,J=8.9Hz,1H),7.74(dd,J=8.9,2.1Hz,1H),7.31(d,J=4.6Hz,4H),7.23(dt,J=8.8,4.1Hz,1H),7.07(s,1H),4.27(s,2H),2.55(s,3H);13C NMR(100MHz,Chloroform-d)δ161.45,146.34,143.88,139.09,132.64,131.36,129.30,128.77,128.28,126.67,126.22,123.01,119.82,45.54,18.75.
实施例3产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ7.99(d,J=8.6Hz,1H),7.69(s,1H),7.53(d,J=10.2Hz,1H),7.31(d,J=3.1Hz,4H),7.25-7.19(m,1H),7.03(s,1H),4.28(s,2H),2.58(s,3H),2.55(s,3H);13C NMR(100MHz,Chloroform-d)δ159.95,146.20,144.03,139.61,135.59,131.41,129.31,129.28,128.68,126.92,126.49,122.78,122.29,45.49,21.91,18.83.
实施例4产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.02(d,J=9.0Hz,1H),7.89(d,J=1.8Hz,1H),7.62(dd,J=8.9,1.8Hz,1H),7.31(d,J=4.4Hz,4H),7.24(td,J=8.8,7.7,3.2Hz,1H),7.08(s,1H),4.27(s,2H),2.56(s,3H).;13C NMR(100MHz,Chloroform-d)δ161.32,146.17,143.98,139.16,131.66,131.24,130.09,129.31,128.81,128.78,127.77,126.68,123.05,122.90,45.52,18.76.
实施例5产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.22(d,J=8.4Hz,1H),8.15-8.08(m,2H),8.03(d,J=8.3Hz,1H),7.75-7.68(m,1H),7.66(s,1H),7.56-7.42(m,4H),7.37-7.29(m,2H),7.26(q,J=5.3,4.7Hz,3H),4.51(s,2H);13C NMR(100MHz,Chloroform-d)δ157.30,148.68,147.18,139.86,138.87,130.56,129.49,129.38,128.99,128.91,128.86,127.68,126.75,126.72,126.41,123.87,120.03,38.67.
实施例6产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ9.46(d,J=8.1Hz,1H),7.91(d,J=7.6Hz,1H),7.85(d,J=9.0Hz,1H),7.81-7.65(m,3H),7.44(d,J=7.4Hz,2H),7.35(t,J=7.5Hz,2H),7.26(t,J=7.3Hz,1H),7.20(s,1H),4.42(s,2H),2.66(s,3H);13C NMR(100MHz,Chloroform-d)δ159.49,145.77,144.42,140.02,133.53,131.98,129.40,128.67,128.64,127.88,127.66,126.84,126.65,126.41,125.10,124.18,122.92,121.34,45.60,19.16.
实施例7产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ7.55(s,1H),7.41-7.28(m,5H),7.23(t,J=7.1Hz,1H),7.03(s,1H),4.29(s,2H),2.82(s,3H),2.57(s,3H),2.51(s,3H);13C NMR(100MHz,Chloroform-d)δ158.60,145.39,143.80,140.08,137.13,134.87,131.57,129.36,128.56,126.79,126.33,122.00,120.61,45.68,21.93,19.13,18.42.
实施例8产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ7.91(d,J=1.9Hz,1H),7.62(s,1H),7.41-7.29(m,4H),7.27-7.20(m,1H),7.07(s,1H),4.27(s,2H),2.81(s,3H),2.55(s,3H);13C NMR(100MHz,Chloroform-d)δ159.98,145.57,143.73,140.04,139.55,132.40,129.36,128.66,128.09,126.51,123.97,122.76,119.32,45.71,19.02,18.25.
实施例9产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.02(d,J=9.0Hz,1H),7.89(d,J=1.8Hz,1H),7.62(dd,J=8.9,1.8Hz,1H),7.31(d,J=4.4Hz,4H),7.24(td,J=8.8,7.7,3.2Hz,1H),7.08(s,1H),4.27(s,2H),2.56(s,3H).;13C NMR(100MHz,Chloroform-d)δ161.32,146.17,143.98,139.16,131.66,131.24,130.09,129.31,128.81,128.78,127.77,126.68,123.05,122.90,45.52,18.76.
实施例10产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.10(d,J=8.4Hz,1H),7.93(d,J=8.3Hz,1H),7.69(t,J=7.6Hz,1H),7.51(t,J=7.6Hz,1H),7.21(d,J=7.9Hz,2H),7.12(d,J=7.9Hz,2H),7.07(s,1H),4.26(s,2H),2.60(s,3H),2.32(s,3H);13C NMR(100MHz,Chloroform-d)δ161.24,147.74,144.67,136.42,136.08,129.62,129.41,129.24,129.20,127.00,125.81,123.72,122.27,45.20,21.16,18.80.
实施例11产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.08(d,J=8.4Hz,1H),7.94(d,J=8.0Hz,1H),7.70(t,J=8.2Hz,1H),7.53(t,J=7.6Hz,1H),7.31-7.21(m,4H),7.04(s,1H),4.25(s,2H),2.62(s,3H);13C NMR(100MHz,Chloroform-d)δ160.34,147.72,145.01,137.93,132.42,130.61,129.58,129.43,128.82,127.01,126.02,123.78,122.16,44.83,18.85.
实施例12产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.08(d,J=8.4Hz,1H),7.94(d,J=8.3Hz,1H),7.69(d,J=8.2Hz,1H),7.52(t,J=7.6Hz,1H),7.41(d,J=8.3Hz,2H),7.18(d,J=8.3Hz,2H),7.03(s,1H),4.23(s,2H),2.61(s,3H);13C NMR(100MHz,Chloroform-d)δ160.23,147.69,145.01,138.43,131.76,131.00,129.56,129.43,126.99,126.02,123.78,122.15,120.49,44.89,18.86.
实施例13产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.13(d,J=8.4Hz,1H),7.95(d,J=8.3Hz,1H),7.75-7.68(m,1H),7.61-7.52(m,5H),7.46-7.37(m,4H),7.33(t,J=7.3Hz,1H),7.13(s,1H),4.35(s,2H),2.63(s,3H);13C NMR(100MHz,Chloroform-d)δ160.84,147.75,144.84,140.98,139.47,138.54,129.71,129.61,129.33,128.83,127.44,127.25,127.10,127.02,125.90,123.76,122.33,45.22,18.84.
实施例14产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.11(d,J=8.4Hz,1H),7.94(d,J=8.3Hz,1H),7.73-7.66(m,1H),7.56-7.48(m,1H),7.20(t,J=7.4Hz,1H),7.13(d,J=8.2Hz,2H),7.10-7.01(m,2H),4.26(s,2H),2.61(s,3H),2.32(s,3H);13C NMR(100MHz,Chloroform-d)δ161.10,147.71,144.70,139.35,138.33,130.10,129.61,129.26,128.59,127.32,127.01,126.35,125.83,123.74,122.33,45.56,21.52,18.82.
实施例15产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.09(d,J=8.4Hz,1H),7.95(d,J=8.3Hz,1H),7.76-7.66(m,1H),7.53(t,J=7.6Hz,1H),7.31(s,1H),7.23-7.19(m,3H),7.05(s,1H),4.26(s,2H),2.63(s,3H);13C NMR(100MHz,Chloroform-d)δ160.01,147.74,145.08,141.44,134.47,129.62,129.45,129.35,127.49,127.05,126.79,126.06,123.79,122.22,45.12,18.86.
实施例16产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.08(d,J=8.4Hz,1H),7.94(d,J=8.3Hz,1H),7.70(t,J=7.7Hz,1H),7.53(t,J=7.6Hz,1H),7.47(s,1H),7.35(d,J=7.9Hz,1H),7.24(d,J=7.7Hz,1H),7.16(t,J=7.8Hz,1H),7.05(s,1H),4.25(s,2H),2.63(s,3H);13C NMR(100MHz,Chloroform-d)δ159.98,147.75,145.05,141.75,132.23,130.24,129.71,129.63,129.43,127.95,127.04,126.05,123.78,122.76,122.20,45.10,18.85.
实施例17产物的核磁数据如下:
1H NMR(400MHz,Chloroform-d)δ8.13(d,J=8.4Hz,1H),7.94(d,J=8.3Hz,1H),7.79(dd,J=11.5,7.7Hz,4H),7.71(t,J=7.6Hz,1H),7.53(t,J=7.6Hz,1H),7.49-7.40(m,3H),7.09(s,1H),4.47(s,2H),2.59(s,3H);13C NMR(100MHz,Chloroform-d)δ160.90,147.80,144.82,137.03,133.79,132.39,129.67,129.35,128.37,127.83,127.78,127.75,127.70,127.07,126.18,125.93,125.64,123.78,122.41,45.79,18.80.
表 实施例1-17反应的转化率及产物图
以上述依据本发明的理想实施例为启示,通过上述的说明内容,相关工作人员完全可以在不偏离本项发明技术思想的范围内,进行多样的变更以及修改。本项发明的技术性范围并不局限于说明书上的内容,必须要根据权利要求范围来确定其技术性范围。
Claims (2)
1.一种合成苄基取代喹啉的合成方法,以4CzIPN作光催化剂,包括以下步骤:
S1:将喹啉类化合物,水,酸,溴化锂,光催化剂与有机溶剂在反应容器内进行充分混合;
S2:氮气氛围下加入芳香醛类化合物,对反应物光照进行反应;
S3:纯化得到苄基取代的喹啉及其衍生物;
所述喹啉类化合物选自:4-甲基喹啉、4-甲基-6-溴喹啉、4,6-二甲基喹啉、4-甲基-6-氯喹啉、2-苯基喹啉、4-甲基苯并[7,8]喹啉、4,6,8-三甲基喹啉、4,8-二甲基-6-溴喹啉、2-甲基-7-氯喹啉;
所述芳香醛类化合物选自:苯甲醛、4-甲基苯甲醛、4-氯苯甲醛、4-溴苯甲醛、4-苯基苯甲醛、3-甲基苯甲醛、3-氯苯甲醛、3-溴苯甲醛、2-萘苯甲醛;
所述酸类化合物选自:盐酸、高氯酸、磷酸、乙酸、三氟乙酸、三氟甲磺酸、对甲苯磺酸之一与磷酸二苯酯的混合物;
所述苄基取代喹啉的结构式为:
2.根据权利要求1所述的方法,所述喹啉类化合物、芳香醛类化合物、水,溴化锂,酸与催化剂的摩尔比为1∶1~2∶0.5~1.5∶0.5~1∶30~50∶0.01~0.05,反应时长为48h。
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