CN114436911B - 一种樟脑磺酰苄胺类化合物的制备方法及其应用 - Google Patents

一种樟脑磺酰苄胺类化合物的制备方法及其应用 Download PDF

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CN114436911B
CN114436911B CN202210264921.3A CN202210264921A CN114436911B CN 114436911 B CN114436911 B CN 114436911B CN 202210264921 A CN202210264921 A CN 202210264921A CN 114436911 B CN114436911 B CN 114436911B
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谷文
杨子辉
王石发
孙雪宝
孙露
陈霖霖
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Abstract

本发明公开了一种樟脑磺酰苄胺类化合物的制备方法及其应用,所述樟脑磺酰苄胺类化合物,其结构式为:其中,
Figure DDA0003551300150000011
所述樟脑磺酰苄胺类化合物在防治农业或林业的植物真菌的应用。活性结果表明:本发明化合物对油菜菌核病菌和水稻纹枯病菌有较好的防治效果。

Description

一种樟脑磺酰苄胺类化合物的制备方法及其应用
技术领域
本发明属于农药合成技术领域,具体涉及到一种樟脑磺酰苄胺类化合物的制备方法及其应用。
背景技术
磺酰胺类化合物在医药和农药上具有广泛的生物活性,如:杀菌、除草、杀虫、抗癌、抗糖尿病等。近年来对磺酰胺类化合物的研究比较多,先后开发出了磺菌胺、甲磺菌胺等高效低毒的杀菌剂;大量具有抗肿瘤活性的磺酰胺类化合物被报道,其中一些化合物已进入临床试验阶段。
在另一方面,萜类化合物在医用或者农用领域的研究备受广泛关注,作为林产重要资源的樟脑,是一种具有双环单萜结构的非木质林产品,天然存在于樟科植物中,是我国的可再生天然优势生物质资源,其IUPAC名称为1,7,7-三甲基二环[2.2.1]庚烷-2-酮,化学式为C10H16O。室温下为白色或透明的蜡状固体,可用于驱虫。樟脑提炼自樟树干中,树龄越老的的樟树所富含樟脑比例越多。提炼方法为将树干切成小块用水蒸馏,樟脑油受热后随着水蒸汽上升,在接触到预先放置在上方的陶缸冷却后便可形成樟脑。在中药成方制剂中主要利用其具有清凉、芳香及温散止痛的功效。常入橡胶膏剂、酊剂、膏药、油剂、软膏剂。樟脑有较强烈的清凉感和芳香气味,具有皮肤刺激类药物活性、防腐活性、驱虫及防虫蛀活性,以及对硝化棉等特殊材料的良好增塑性能。
因此,樟脑在医药中间体、环境友好型防虫蛀剂、香料、熏香、工业原料等领域内得到了广泛的应用。天然来源的樟脑由于资源匮乏及保护等原因已经远不能满足日益扩大的樟脑市场需求,
目前,樟脑磺酰苄胺类化合物的制备方法与杀菌方面的应用尚未报道。
发明内容
本部分的目的在于概述本发明的实施例的一些方面以及简要介绍一些较佳实施例。在本部分以及本申请的说明书摘要和发明名称中可能会做些简化或省略以避免使本部分、说明书摘要和发明名称的目的模糊,而这种简化或省略不能用于限制本发明的范围。
鉴于上述和/或现有技术中存在的问题,提出了本发明。
因此,本发明的目的是,克服现有技术中的不足,提供一种樟脑磺酰苄胺类化合物。
为解决上述技术问题,本发明提供了如下技术方案:一种樟脑磺酰苄胺类化合物,所述樟脑磺酰苄胺类化合物,其结构式为:
其中,
Figure BDA0003551300130000021
本发明的再一个目的是,克服现有技术中的不足,提供一种樟脑磺酰苄胺类化合物的制备方法。
为解决上述技术问题,本发明提供了如下技术方案:一种樟脑磺酰苄胺类化合物的制备方法,包括,
L-10-樟脑磺酸与氯化亚砜反应合成L-10-樟脑磺酰氯中间体;
将L-10-樟脑磺酰氯中间体与取代苄胺、三乙胺和4-二甲氨基吡啶反应,合成樟脑磺酰苄胺类化合物I-1~I-11。
作为本发明所述樟脑磺酰苄胺类化合物的制备方法的一种优选方案,其中:L-10-樟脑磺酰氯中间体,其制备方法包括,
单口瓶中加入L-10-樟脑磺酸3.0mmol并加入氯化亚砜3.3mmo]溶解,升温至回流温度反应5h,冷却,浓缩除去大部分溶剂和HCl,得白色固体L-10-樟脑磺酰氯。
作为本发明所述樟脑磺酰苄胺类化合物的制备方法的一种优选方案,其中:L-10-樟脑磺酰氯中间体与取代苄胺的摩尔比为1.1:1。
作为本发明所述樟脑磺酰苄胺类化合物的制备方法的一种优选方案,其中:L-10-樟脑磺酰氯中间体与三乙胺的摩尔比为1:1。
作为本发明所述樟脑磺酰苄胺类化合物的制备方法的一种优选方案,其中:L-10-樟脑磺酰氯中间体与4-二甲氨基吡啶的摩尔比为1.1:1。
作为本发明所述樟脑磺酰苄胺类化合物的制备方法的一种优选方案,其中:所述合成樟脑磺酰苄胺类化合物I-1~I-11,其中,反应温度为25℃,反应时间为2-7h。
本发明的另一个目的是,克服现有技术中的不足,提供一种樟脑磺酰苄胺类化合物在防治农业或林业的植物真菌的应用,所述植物真菌包括油菜菌核病菌和水稻纹枯病菌。
本发明有益效果:
(1)本发明所述樟脑磺酰苄胺类化合物,分子结构新颖,均为新化合物;化学结构特征鲜明,结构式中含有苄胺基团,其中苄胺基团与樟脑磺酸结构通过磺酰胺键相连接;本发明所述的化合物的制备方法简便,原料易得,反应条件易控。尤其在合成樟脑磺酰苄胺类化合物这步反应中,产物经柱层析即可得到。
(2)本发明所述的化合物是一种在农业或林业领域的防治植物真菌的药剂,这种药剂对于防治油菜菌核病菌和水稻纹枯病菌显示出较好的效果。
附图说明
为了更清楚地说明本发明实施例的技术方案,下面将对实施例描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动性的前提下,还可以根据这些附图获得其它的附图。其中:
图1为本发明实施例中樟脑磺酰苄胺类化合物I-1~I-11制备方法示意图。
具体实施方式
为使本发明的上述目的、特征和优点能够更加明显易懂,下面结合说明书实施例对本发明的具体实施方式做详细的说明。
在下面的描述中阐述了很多具体细节以便于充分理解本发明,但是本发明还可以采用其他不同于在此描述的其它方式来实施,本领域技术人员可以在不违背本发明内涵的情况下做类似推广,因此本发明不受下面公开的具体实施例的限制。
其次,此处所称的“一个实施例”或“实施例”是指可包含于本发明至少一个实现方式中的特定特征、结构或特性。在本说明书中不同地方出现的“在一个实施例中”并非均指同一个实施例,也不是单独的或选择性的与其他实施例互相排斥的实施例。
本发明中的L-10-樟脑磺酸、4-二甲氨基吡啶和三乙胺和取代苄胺均购自上海毕得科技有限公司;氯化亚砜购自天津光复精细化工厂;其他原料,均为普通市售产品。
实施例1
单口瓶中加入L-10-樟脑磺酸(3.0mmol)并加入氯化亚砜(3.3mmol)溶解,升温至回流温度反应5h,冷却,浓缩除去大部分溶剂和HCl,得白色固体L-10-樟脑磺酰氯,产物未经进一步处理直接投下一步。
Figure BDA0003551300130000041
将2,4-二氟苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应3h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-1,白色固体,m.p.52–54℃,收率85%.1H NMR(600MHz,CDCl3)δ7.44(dd,J=15.0,8.4Hz,1H),6.89–6.80(m,2H),5.87(s,1H),4.41–4.34(m 2H),3.20(d,J=15.1Hz,1H),2.90(d,J=15.1Hz,1H),2.38–2.35(m,1H),2.17–2.11(m,2H),2.03–1.90(m,3H),1.46–1.41(m,1H),0.97(s,3H),0.79(s,3H).13C NMR(150MHz,CDCl3)δ216.96,162.61(dd,J=248.2,11.9Hz),160.84(dd,J=248.4,11.8Hz),131.36(dd,J=9.7,5.6Hz),120.36(dd,J=15.0,3.6Hz),111.40(dd,J=20.7,3.6Hz),104.92(t,J=25.2Hz),59.26,50.75,48.72,42.86,42.69,40.99,26.94,19.67,19.30.
实施例2
Figure BDA0003551300130000051
将3-氯苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应5h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-2,无色油状物,收率80%.1H NMR(600MHz,CDCl3)δ7.38(s,1H),7.28–7.27(m,3H),5.88(s,1H),4.37–4.29(m,2H),3.18(d,J=15.1Hz,1H),2.89(d,J=15.1Hz,1H),2.39–2.35(m,1H),2.17–2.10(m,2H),2.04–1.90(m,3H),1.45–1.40(m,1H),0.96(s,3H),0.79(s,3H).13C NMR(150MHz,CDCl3)δ217.18,139.11,134.49,129.95,128.26,127.92,126.34,59.27,50.69,48.79,47.05,42.91,42.68,26.94,26.85,19.71,19.30.
实施例3
Figure BDA0003551300130000052
将2-氯-4-氟苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应4.5h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-3,白色固体,m.p.106–107.5℃,收率83%.1H NMR(600MHz,CDCl3)δ7.54(dd,J=8.5,6.0Hz,1H),7.16(dd,J=8.4,2.6Hz,1H),7.04–7.01(m,1H),5.91–5.89(m,1H),4.49–4.42(m,2H),3.21(d,J=15.1Hz,1H),3.00–2.86(m,1H),2.42–2.38(m,1H),2.20–2.13(s,2H),2.06–2.00(m,2H),1.94(d,J=18.6Hz,1H),1.49–1.43(m,1H),1.00(s,3H),0.83(s,3H).13C NMR(150MHz,CDCl3)δ216.72,161.98(d,J=248.8Hz),134.22(d,J=10.4Hz),131.50(d,J=8.8Hz),130.86(d,J=3.6Hz),116.89(d,J=24.7Hz),114.20(d,J=20.9Hz),59.22,50.91,48.64,44.62,42.82,42.66,26.91,26.79,19.67,19.31.
实施例4
Figure BDA0003551300130000061
将2,4-二氯苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应6h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-4,白色固体,m.p.82–84.5℃,收率89%.1H NMR(600MHz,CDCl3)δ7.48(d,J=8.2Hz,2H),7.39(s,2H),7.25(s,2H),5.93(t,J=6.2Hz,2H),4.46–4.39(m,2H),3.21(d,J=15.1Hz,2H),2.91(d,J=15.1Hz,2H),2.38(d,J=18.6Hz,2H),2.17–2.11(m,2H),2.04–1.91(m,3H),1.46–1.42(m,1H),0.98(s,3H),0.81(s,3H).13C NMR(150MHz,CDCl3)δ216.90,134.37,134.20,133.50,131.16,129.37,127.39,77.00,59.34,51.06,48.77,44.77,42.91,42.74,26.9819.73,19.36.
实施例5
Figure BDA0003551300130000071
将2-氯苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应6h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-5,白色固体,m.p.135–137℃,收率95%.1H NMR(600MHz,CDCl3)δ7.52(dd,J=7.3,1.9Hz,1H),7.38(dd,J=7.5,1.6Hz,1H),7.28(dd,J=7.4,1.6Hz,2H),5.91(t,J=6.2Hz,1H),4.51–4.44(m,2H),3.15(d,J=15.1Hz,1H),2.87(d,J=15.1Hz,1H),2.38–2.34(m,1H),2.17–2.09(m,2H),2.03–1.89(m,2H),1.91(d,J=18.6Hz,1H),1.45–1.40(m,1H),0.95(s,3H),0.76(s,3H).13CNMR(150MHz,CDCl3)δ216.58,134.70,133.70,130.56,129.65,129.33,127.14,59.32,51.20,48.65,45.49,42.88,42.73,26.99,19.72,19.38.
实施例6
Figure BDA0003551300130000072
将4-三氟甲氧基苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应7h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-6,无色油状物,收率96%.1H NMR(600MHz,CDCl3)δ7.32(d,J=8.4Hz,2H),7.31–7.23(m,2H),5.89(t,J=6.4Hz,1H),4.34–4.27(m,2H),3.20(d,J=15.1Hz,1H),2.86(d,J=15.1Hz,1H),2.37–2.33(m,1H),2.19–2.09(m,2H),2.02–1.97(m,1H),1.92–1.87(m,2H),1.43–1.39(m,1H),0.96(s,3H),0.78(s,3H).13C NMR(150MHz,CDCl3)δ216.90,135.58,133.40,129.51,128.63,59.04,50.31,48.60,46.77,42.74,42.54,26.81,26.49,19.56,19.21.
实施例7
Figure BDA0003551300130000081
将4-氯苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应2-7h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-7,白色固体,m.p.65–67℃,收率91%.1H NMR(600MHz,CDCl3)δ7.43(d,J=8.4Hz,2H),7.18(d,J=8.1Hz,2H),5.97(t,J=5.8Hz,1H),4.35(d,J=5.9Hz,2H),3.20(d,J=15.0Hz,1H),2.87(d,J=15.0Hz,1H),2.37–2.32(m,1H),2.19–2.14(m,1H),2.10(t,J=4.3Hz,1H),2.02–1.97(m,1H),1.94–1.88(m,2H),1.44–1.39(m,1H),0.95(s,3H),0.76(s,3H).13C NMR(150MHz,CDCl3)δ217.01,148.55,135.93,129.62,120.27(q,J=255.5Hz),121.03,59.09,50.48,48.62,46.72,42.77,42.56,26.82,26.56,19.51,19.17.
实施例8
Figure BDA0003551300130000091
将4-溴苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应2h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-8,无色油状物,收率90%.1H NMR(600MHz,CDCl3)δ7.46(d,J=8.3Hz,2H),7.26(d,J=8.3Hz,2H),5.85(t,J=6.4Hz,1H),4.33–4.26(m,2H),3.18(d,J=15.1Hz,1H),2.87(d,J=15.1Hz,1H),2.38–2.34(m,1H),2.18–2.10(m,2H),2.03–1.97(m,1H),1.95–1.89(m,2H),1.44–1.40(m,1H),0.96(s,3H),0.78(s,3H).13C NMR(150MHz,CDCl3)δ217.07,136.07,131.68,129.91,121.65,59.17,50.47,48.72,46.94,42.84,42.62,26.89,26.69,19.65,19.27.
实施例9
Figure BDA0003551300130000092
将3-氯-5三氟甲基-2-氨甲基吡啶(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应3h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-9,白色固体,m.p.109–110℃,收率50%.1H NMR(600MHz,CDCl3)δ8.73(s,1H),7.96(d,J=1.5Hz,1H),6.36(s,1H),4.75–4.68(m,2H),3.59(d,J=15.1Hz,1H),3.02(d,J=15.1Hz,1H),2.39–2.33(m,2H),2.13(t,J=4.5Hz,1H),2.09–2.03(m,1H),1.94–1.88(m,2H),1.48–1.44(m,1H),1.06(s,3H),0.89(s,3H).13C NMR(150MHz,CDCl3)δ216.11,156.52,143.46(q,J=4.0Hz),134.12(q,J=3.4Hz),130.34(s),126.79(q,J=33.6Hz),122.44(q,J=271.3Hz),58.85,50.04,48.48,45.44,42.68,26.91,25.85,19.74,19.47.
实施例10
Figure BDA0003551300130000101
将4-硝基苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应7h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-10,白色固体,m.p.150–151.5℃,收率63.5%.1H NMR(600MHz,CDCl3)δ8.13(d,J=8.4Hz,1H),7.84(d,J=8.1Hz,1H),7.79(d,J=8.2Hz,1H),7.55(td,J=6.8,1.4Hz,2H),7.48(t,J=7.5Hz,1H),7.44–7.38(m,1H),5.82(t,J=6.3Hz,1H),4.84(dd,J=13.9,6.6Hz,1H),4.74(dd,J=13.9,6.0Hz,1H),3.15(d,J=15.1Hz,1H),2.83(d,J=15.1Hz,1H),2.26–2.21(m,1H),2.14–2.08(m,1H),2.01(t,J=4.3Hz,1H),1.96–1.86(m,2H),1.82(d,J=18.5Hz,1H),1.37–1.33(m,1H),0.88(s,3H),0.58(s,3H).13C NMR(150MHz,CDCl3)δ216.60,133.79,132.21,131.15,128.80,128.60,127.16,126.57,125.93,125.26,123.53,59.09,50.35,48.51,45.58,42.74,42.56,26.86,26.74,19.41,19.21.
实施例11
Figure BDA0003551300130000111
将4-碘苄胺(1.0mmol),4-二甲氨基吡啶(0.1mmol),三乙胺(1.1mmol)溶解于无水二氯甲烷中,降温至0℃,分批加入L-10-樟脑磺酰氯(1.10mol),升至25℃反应3h。TLC监测原料反应完全,有机层以水洗涤3次(8ml×3),饱和食盐水洗涤3次(8mL×3),干燥,抽滤,浓缩除去二氯甲烷,粗品经柱层析(CH2Cl2:MeOH=20:1)获得目标化合物I-11,无色油状物.收率70%.1H NMR(600MHz,CDCl3)δ8.21(d,J=8.6Hz,2H),7.59(d,J=8.5Hz,2H),5.92(t,J=6.3Hz,1H),4.51–4.42(m,2H),3.29(d,J=15.1Hz,1H),2.96(d,J=15.1Hz,1H),2.43–2.38(m,1H),2.21–2.15(m,2H),2.07–1.93(m,3H),1.49–1.45(m,1H),1.00(s,3H),0.86(s,3H).13C NMR(150MHz,CDCl3)δ217.65,147.49,144.68,128.70,123.86,59.37,50.58,49.03,46.80,43.00,42.74,27.00,26.89,19.84,19.33.
实施例12
杀菌活性(离体)实验
本实验中所用的植物真菌为实验室4℃保存的菌种,为番茄灰霉病菌、小麦赤霉病菌、马铃薯晚疫病菌、辣椒疫霉病菌、山核桃干腐病菌、油菜菌核病菌、苹果轮纹病菌和水稻纹枯病菌。采用的培养基为马铃薯琼脂葡萄糖培养基(简称PDA)。
PDA培养基配方:马铃薯(去皮)200g,葡萄糖20g,琼脂15g,蒸馏水1000mL,配制方法:将马铃薯洗净去皮,称200g切成小块,加水煮烂(煮沸20-30分钟,能被玻璃棒戳破即可),用八层纱布过滤于烧杯中,根据实验需要加15-20g琼脂,加入20g葡萄糖,搅拌均匀,充分溶解后稍冷却,补足水至1000mL,分装后121℃灭菌15分钟,冷却后备用。
实验方法:采用生长速率法。
(1)先将8种植物真菌在PDA平板上25℃培养3-6d左右待用;
(2)将PDA培养基加热溶化,冷却至45-50℃,加入250μL的10g/L浓度的待测化合物制成含50mg/L药液的培养基,并分别倒入培养皿中冷却,氟唑菌酰羟胺(pydiflumetofen)作为阳性对照;
(3)以无菌操作,用打孔器在培养6d的各菌株菌丝边缘(生长状况尽量一致)打取圆形菌饼(直径0.50cm),再用接种针挑至含药平板中央,然后将培养皿倒置于培养箱(28℃)中培养;
(4)于处理后不同时间观察测定菌丝的生长情况,并采用十字交叉法测得直径并处理数据,计算抑制率;
(5)抑制率(%)=(对照菌丝直径-处理菌丝直径)/(对照菌丝直径-0.5)×100;
(6)每个处理重复3次。
表1樟脑磺酰苄胺类化合物对八种农业致病真菌的抑制活性试验结果
Figure BDA0003551300130000121
a注:试验中每个处理设三次重复,表中数据为三次重复的平均值。
实验组I-1~I-11以及对照药剂氟唑菌酰羟胺的杀菌活性测定结果见表。由表1的结果可见,50mg/L浓度时,化合物I-1~I-11对8种植物真菌显示出不同程度的抑菌活性,部分化合物对油菜菌核病菌和水稻纹枯病菌有一定的抑制活性;其中化合物I-4对油菜菌核病菌的抑制率为62.5%,部分化合物对水稻纹枯病菌抑制率在40%以上。
本发明所述含有樟脑磺酰苄胺类化合物,结构区别明显,化学结构特征鲜明,对于防治油菜菌核病菌和水稻纹枯病菌显示出较好的效果。可用于防治农业或林业植物真菌病害。所述化合物的制备方法简便,收率较高,产物性质稳定。
应说明的是,以上实施例仅用以说明本发明的技术方案而非限制,尽管参照较佳实施例对本发明进行了详细说明,本领域的普通技术人员应当理解,可以对本发明的技术方案进行修改或者等同替换,而不脱离本发明技术方案的精神和范围,其均应涵盖在本发明的权利要求范围当中。

Claims (9)

1.一种樟脑磺酰苄胺类化合物,其特征在于:所述樟脑磺酰苄胺类化合物,其结构式为:
2.如权利要求1所述樟脑磺酰苄胺类化合物的制备方法,其特征在于:包括,
L-10-樟脑磺酸与氯化亚砜反应合成L-10-樟脑磺酰氯中间体;
将L-10-樟脑磺酰氯中间体与取代苄胺、三乙胺和4-二甲氨基吡啶反应,合成樟脑磺酰苄胺类化合物I-1~I-11。
3.如权利要求2所述樟脑磺酰苄胺类化合物的制备方法,其特征在于:L-10-樟脑磺酰氯中间体,其制备方法包括,
单口瓶中加入L-10-樟脑磺酸3.0 mmol并加入氯化亚砜3.3 mmol溶解,升温至回流温度反应5 h,冷却,浓缩除去大部分溶剂和HCl,得白色固体L-10-樟脑磺酰氯。
4.如权利要求2所述樟脑磺酰苄胺类化合物的制备方法,其特征在于:L-10-樟脑磺酰氯中间体与取代苄胺的摩尔比为1.1:1。
5.如权利要求2所述樟脑磺酰苄胺类化合物的制备方法,其特征在于:L-10-樟脑磺酰氯中间体与三乙胺的摩尔比为1:1。
6.如权利要求2所述樟脑磺酰苄胺类化合物的制备方法,其特征在于:L-10-樟脑磺酰氯中间体与4-二甲氨基吡啶的摩尔比为1.1:1。
7.如权利要求2所述樟脑磺酰苄胺类化合物的制备方法,其特征在于:所述合成樟脑磺酰苄胺类化合物I-1~I-11,其中,反应温度为25℃ ,反应时间为 2-7 h。
8.如权利要求1所述樟脑磺酰苄胺类化合物在防治农业或林业的植物真菌的应用。
9.如权利要求8所述应用,其特征在于:所述植物真菌包括油菜菌核病菌和水稻纹枯病菌。
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