CN111269180B - 含有三氟甲基茚并苯并六元杂环结构化合物在防治植物病虫害中的应用 - Google Patents

含有三氟甲基茚并苯并六元杂环结构化合物在防治植物病虫害中的应用 Download PDF

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CN111269180B
CN111269180B CN201811477903.3A CN201811477903A CN111269180B CN 111269180 B CN111269180 B CN 111269180B CN 201811477903 A CN201811477903 A CN 201811477903A CN 111269180 B CN111269180 B CN 111269180B
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汪清民
王强
刘玉秀
王兹稳
宋红健
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Abstract

本发明涉及含有三氟甲基茚并苯并六元杂环结构化合物在防治植物病虫害中的应用,式中各基团的意义见说明书。本专利中含有三氟甲基茚并苯并六元杂环结构化合物表现出良好的抗TMV活性和杀虫活性。

Description

含有三氟甲基茚并苯并六元杂环结构化合物在防治植物病虫 害中的应用
技术领域
本发明涉及含有三氟甲基茚并苯并六元杂环结构化合物在防治植物病虫害中的应用,属于农业防护技术领域。
背景技术
含有3,4-二氢喹啉酮和二氢香豆素结构的多元稠杂环化合物广泛存在于多种天然产物以及生物活性分子中。例如含有3,4-二氢喹啉酮骨架的山橙属生物碱,作为中国传统民间中草药,可用于治疗儿童脑膜炎和风湿性心脏病,并且还具有活血化瘀,刺激吸吮和治疗骨折等用途(Phytochemistry,1993,34:563-566)。再比如含有二氢香豆素结构的天然产物Herbertenolide,最早是由Matsuo课题组从剪叶苔中分离并鉴定,其对于葡萄孢菌和立枯丝核菌均表现出很好的抑菌活性(J.Chem.Soc.,Perkin Trans.1,1986,0:701-710)。三氟甲基能提高有机分子的电负性、脂溶性、代谢稳定性以及生物利用率,因此其在医药和农药领域的应用十分广泛。近期,本课题组报道了含有三氟甲基的茚并3,4-二氢喹啉酮和茚并二氢香豆素类化合物对于十四种病原菌的离体抑菌活性。其中具有茚并二氢香豆素结构的化合物在50mg/L浓度下对油菜菌核、苹果轮纹和小麦纹枯病均表现出大于60%的抑菌活性,特别是对于小麦纹枯病,其抑制率达到88.5%(Adv.Synth.Catal.2016,358:3435-3442)。然而目前还没有文献报道这两类化合物在其他农药领域的应用,比如其抗植物病毒活性以及杀虫活性尚未被发现。
Figure BSA0000175209570000011
结构式一
发明内容
本发明目的是提供含有三氟甲基茚并苯并六元杂环结构化合物在抗植物病毒和杀虫方面的应用。本发明的含有三氟甲基茚并苯并六元杂环结构化合物表现出良好的抗植物病毒和杀虫活性。
本发明的含有三氟甲基茚并苯并六元杂环结构化合物是如下通式I所示的化合物,具体包括Ia和Ib。
Figure BSA0000175209570000021
结构式二
Ia按照反应式一所示的方法制备(Adv.Synth.Catal.2016,358:3435-3442):首先,2-碘苯胺与端炔发生Sonogashira偶联得到2-乙炔基苯胺IV,随后在氨基上引入对甲苯磺酰基得到化合物V。之后,V与苯基丙烯酰氯反应得到化合物VI。最终,化合物VI在以溴化亚铜为催化剂条件下与托尼试剂反应得到化合物Ia。
Figure BSA0000175209570000022
反应式一
Ib按照反应式二所示的方法制备(Adv.Synth.Catal.2016,358:3435-3442):首先,2-溴苯酚与端炔发生Sonogashira偶联得到2-乙炔基苯酚IX。随后,化合物IX与苯基丙烯酰氯反应得到化合物X。最终,化合物X在以溴化亚铜为催化剂条件下与托尼试剂反应得到化合物Ib。
Figure BSA0000175209570000023
反应式二
以上各通式中,
其中,X为NR3、O;
R1为C1-C12的烷基、C3-C6的环烷基、取代的或未取代的苯基、取代的或未取代的萘基、取代的或未取代的苄基、取代的或未取代的苯乙基、取代的或未取代的苯丙基、取代的或未取代的苯丁基、含有1-10个碳原子的含氮杂环、含有1-10个碳原子的含氧杂环、含有1-10个碳原子的含硫杂环;所述取代的苯基、取代的萘基、取代的苄基、取代的苯乙基、取代的苯丙基和取代的苯丁基的取代基各自独立地选自羟基、卤素、氰基、硝基、酯基、三氟甲基、三氟甲氧基、酰胺基、C1-C6的烃基、C1-C6的烷氧基、C1-C4的烷基取代的羰氧基和C1-C4的烷氧基取代的羰氧基;
R2分别为一到四个C1-C12的烷基、C3-C6的环烷基、卤素、氰基、硝基、酯基、三氟甲基、三氟甲氧基、酰胺基、C1-C6的烃基、C1-C6的烷氧基、C1-C4的烷基取代的羰氧基和C1-C4的烷氧基取代的羰氧基;
R3为C1-C12的烷基取代的磺酰基、取代的或未取代的苯磺酰基、取代的或未取代的萘磺酰基、C1-C4的烷基取代的羰氧基、取代的或未取代的苯甲酰基、取代的或未取代的萘甲酰基、C1-C12的烷基、C3-C6的环烷基、取代的或未取代的苄基、取代的或未取代的苯乙基、取代的或未取代的苯丙基、取代的或未取代的苯丁基、氢;所述各类取代的苯磺酰基、取代的萘磺酰基、取代的苯甲酰基、取代的萘甲酰基、取代的苄基、取代的苯乙基、取代的苯丙基和取代的苯丁基的取代基各自独立地选自羟基、卤素、氰基、硝基、酯基、三氟甲基、三氟甲氧基、酰胺基、C1-C6的烃基、C1-C6的烷氧基、C1-C4的烷基取代的羰氧基和C1-C4的烷氧基取代的羰氧基。
在本发明中,C1-C12的烷基的具体实例例如可以为:甲基、乙基、正丙基、异丙基、正丁基、异丁基、仲丁基、叔丁基、正戊基、正己基、正庚基、正辛基、正壬基、正癸基、正十一烷基、正十二烷基等。
C1-C6的烃基、C1-C4的烷基可以从上述的烷基的具体实例进行选择并进行满足相应限定即可。
C1-C6的烷氧基可以是上述的满足1-6个碳原子限定的烷基的具体实例形成的烷氧基。
C3-C6的环烷基的具体实例例如可以为:
Figure BSA0000175209570000031
等。
含有1-10个碳原子的含氮杂环可以是不饱和氮杂环,也可以是饱和氮杂环,只要其杂环的环结构中以氮为结构原子且该杂环具有的碳原子个数为1-10个,例如可以是未取代的或者C1-C6的烷基取代的吡咯、未取代的或者C1-C6的烷基取代的氢化吡咯、未取代的或者C1-C7的烷基取代的咪唑、未取代的或者C1-C7的烷基取代的氢化咪唑、未取代的或者C1-C5的烷基取代的吡啶、未取代的或者C1-C5的烷基取代的氢化吡啶、未取代的或者C1-C7的烷基取代的吡唑、未取代的或者C1-C7的烷基取代的氢化吡唑、未取代的或者C1-C7的烷基取代的噻唑、未取代的或者C1-C7的烷基取代的氢化噻唑、未取代的或者C1-C7的烷基取代的噁唑、未取代的或者C1-C7的烷基取代的氢化噁唑等。其中,作为取代基的烷基可以从上文中所描述的烷基具体实例中进行相应的选择,这些烷基的取代可以是单点的,也可以是多点的取代,本发明对此并无特别的限定。
含有1-10个碳原子的含氧杂环可以是不饱和氧杂环,也可以是饱和氧杂环,只要其杂环的环结构中以氧为结构原子且该杂环具有的碳原子个数为1-10个,例如可以是未取代的或者C1-C6的烷基取代的呋喃、未取代的或者C1-C6的烷基取代的氢化呋喃、未取代的或者C1-C7的烷基取代的噁唑、未取代的或者C1-C7的烷基取代的氢化噁唑、未取代的或者C1-C3的烷基取代的1,3-苯并二噁茂、未取代的或者C1-C2的烷基取代的1,4-苯并二噁等。
含有1-10个碳原子的含硫杂环可以是不饱和硫杂环,也可以是饱和硫杂环,只要其杂环的环结构中以硫为结构原子且该杂环具有的碳原子个数为1-10个,例如可以是未取代的或者C1-C6的烷基取代的噻吩、未取代的或者C1-C6的烷基取代的氢化噻吩、未取代的或者C1-C7的烷基取代的噻唑、未取代的或者C1-C7的烷基取代的氢化噻唑等。
本发明优选化合物如结构式三所示:
Figure BSA0000175209570000041
结构式三
本发明的含有三氟甲基茚并苯并六元杂环结构化合物I表现出良好的抗植物病毒和杀虫活性。
具体实施方式
下述的实施例和生测试验结果可用来进一步说明本发明,但不意味着限制本发明。
实施例1:含有三氟甲基茚并苯并六元杂环结构化合物Ia-1~Ia-9的合成
Figure BSA0000175209570000051
Ia-1:在250mL四口瓶中加入2-碘苯胺(4.38g,20mmol),Pd(PPh3)2Cl2(0.28g,0.4mmol),CuI(76mg,0.4mmol)和三乙胺100mL。然后在Ar保护下于-78℃置换气体3次。之后用注射器加入4-甲基苯乙炔(2.55g,22mmol),并在45℃条件下反应4小时。完毕,反应混合液过滤并用乙酸乙酯洗涤。滤液减压脱溶,用石油醚(60-90℃)/乙酸乙酯体系柱层析分离,得到黄色固体IV-1 4.0g,收率98%,熔点85-86℃。在0℃下将6mmol对甲苯磺酰氯加入到5mmol化合物IV-1和0.5mmol 4-二甲氨基吡啶的20mL吡啶溶液中。加毕,室温搅拌过夜。反应混合液减压脱溶,加入二氯甲烷溶解,之后用1M盐酸洗涤,饱和氯化钠洗涤。有机相用无水硫酸镁干燥,减压脱溶。最终以石油醚(60-90℃)/乙酸乙酯体系柱层析分离,得到黄色固体V-1 1.7g,收率95%,熔点111-112℃。随后,将2mmol苯基丙烯酰氯的10mL二氯甲烷溶液于0℃下滴入到1.5mmol化合物V-1和4mmol三乙胺的20mL二氯甲烷溶液中。室温反应过夜之后,体系用水和饱和食盐水依次洗涤。有机相用无水硫酸镁干燥,减压脱溶。最后,以石油醚(60-90℃)/乙酸乙酯体系柱层析分离,得到白色固体VI-1 0.61g,收率85%,熔点148-150℃。最后,向干燥反应管中加入化合物VI-1(98.2mg,0.2mmol),CuBr(5.6mg,0.04mmol),托尼试剂(126.4mg,0.4mmol)和1,2-二氯乙烷2mL。然后在Ar保护下于-78℃置换气体3次,在80℃下搅拌反应24小时。之后,反应体系冷却至室温,加入水,用二氯甲烷萃取。有机相依次用饱和碳酸钠洗,饱和氯化钠洗,无水硫酸钠干燥,减压脱溶得到粗产物。粗产品用常压柱层析分离得到白色固体Ia-1 81.6mg,收率73%,熔点195-197℃。1H NMR(400MHz,CDCl3)δ7.90(d,J=8.3Hz,1H),7.78(d,J=8.4Hz,2H),7.76-7.72(m,1H),7.41-7.36(m,1H),7.34-7.26(m,7H),7.22-7.15(m,4H),2.78(dq,J=15.1,10.1Hz,1H),2.45(s,3H),2.42-2.35(m,1H),2.33(s,3H).13C NMR(100MHz,CDCl3)δ167.0,145.1,143.9,141.3,140.9,138.5,136.2,134.7,132.5,129.6,129.4,128.8,128.5,128.14,128.11,127.4,126.8,126.5,126.2,124.6,124.5(q,J=280.3Hz),123.8,121.3,58.4,38.1(q,J=29.2Hz),21.6,21.4.19F NMR(376MHz,CDCl3)δ-61.12(t,J=9.9Hz,3F).HRMS(ESI)calcd for C32H25F3NO3S[M+H]+560.1502,found 560.1514.
Ia-2~Ia-9的合成过程与Ia-1相同,数据如下:
Ia-2:白色固体,收率88%,熔点189-191℃。1H NMR(400MHz,CDCl3)δ7.91(d,J=8.2Hz,1H),7.82(d,J=8.4Hz,2H),7.78-7.74(m,1H),7.44-7.28(m,6H),7.25-7.15(m,5H),7.14-7.09(m,1H),2.79(dq,J=15.0,10.1Hz,1H),2.46-2.38(m,1H),2.35(s,3H).13CNMR(100MHz,CDCl3)δ166.9,162.8(d,J=248.8Hz),145.2,143.7,140.8,140.2,136.2,134.7,133.3,130.7(d,J=8.1Hz),129.5,128.6,128.5(d,J=24.1Hz),128.2,127.3,126.8,126.7,126.3,124.5(q,J=280.4Hz),124.3,123.7,121.1,116.2,116.0,58.5,38.2(q,J=29.5Hz),21.7.19F NMR(376MHz,CDCl3)δ-61.15(t,J=9.9Hz,3F),-112.27(t,J=8.7,5.4Hz,1F).HRMS(ESI)calcd for C31H22F4NO3S[M+H]+564.1251,found 564.1249.
Ia-3:白色固体,收率63%,熔点202-203℃。1H NMR(400MHz,CDCl3)δ7.82(d,J=8.1Hz,1H),7.70(d,J=8.0Hz,2H),7.58(dd,J=13.1,7.7Hz,2H),7.53-7.40(m,2H),7.40-7.28(m,2H),7.22(d,J=7.3Hz,1H),7.15(d,J=8.0Hz,2H),2.68(dq,J=15.2,9.9Hz,1H),2.31(s,3H),2.17-1.98(m,1H),1.41(s,9H).13C NMR(100MHz,CDCl3)δ167.3,149.5,145.1,143.5,141.1,135.7,134.5,131.5,131.1,129.5,128.3,128.2,127.8,127.7,126.2,125.7,124.5(q,J=280.3Hz),124.1,124.0,60.1,35.7(q,J=30.1Hz),35.5,31.0,21.6.19F NMR(376MHz,CDCl3)δ-60.81(t,J=9.6Hz,3F).HRMS(ESI)calcd for C29H27F3NO3S[M+H]+526.1658,found 526.1657.
Ia-4:白色固体,收率84%,熔点192-194℃。1H NMR(400MHz,CDCl3)δ7.85(d,J=8.9Hz,1H),7.79-7.73(m,3H),7.55-7.47(m,3H),7.40-7.31(m,5H),7.30-7.26(m,1H),7.21(d,J=8.3Hz,2H),7.08(d,J=2.4Hz,1H),2.80(dq,J=15.0,10.1Hz,1H),2.47-2.35(m,1H),2.34(s,3H).13C NMR(100MHz,CDCl3)δ166.7,145.4,143.5,142.8,140.9,136.0,133.2,132.6,132.1,131.6,129.6,129.1,129.0,128.8,128.7,128.3,127.0,126.9,126.3,126.1,125.1,124.5(q,J=280.3Hz),121.7,58.4,38.2(q,J=29.1Hz),21.7.19FNMR(376MHz,CDCl3)δ-61.10(t,J=9.8Hz,3F).HRMS(ESI)calcd for C31H22ClF3NO3S[M+H]+580.0956,found 580.0951.
Ia-5:白色固体,收率87%,熔点206-207℃。1H NMR(400MHz,CDCl3)δ7.81-7.72(m,4H),7.55-7.46(m,4H),7.40-7.30(m,4H),7.27(s,1H),7.25-7.17(m,3H),2.80(dq,J=14.9,10.0Hz,1H),2.47-2.37(m,1H),2.34(s,3H).13C NMR(100MHz,CDCl3)δ166.6,145.4,143.4,142.7,140.9,135.9,133.6,132.0,131.4,131.1,129.8,129.5,129.1,129.0,128.72,128.69,128.2,127.0,126.4,126.3,125.3,124.4(q,J=280.4Hz),121.7,120.4,58.3,38.1(q,J=29.3Hz),21.7.19F NMR(376MHz,CDCl3)δ-61.09(t,J=9.9Hz,3F).HRMS(ESI)calcd for C31H22BrF3NO3S[M+H]+624.0450,found 624.0455,626.0440.
Ia-6:白色固体,收率87%,熔点197-199℃。1H NMR(400MHz,CDCl3)δ8.04(d,J=8.6Hz,1H),7.80(d,J=8.4Hz,2H),7.78-7.74(m 1H),7.65(dd,J=8.7,1.9Hz,1H),7.54-7.49(m,3H),7.40(d,J=1.7Hz,1H),7.38-7.32(m,4H),7.30-7.27(m,1H),7.24(d,J=8.3Hz,2H),2.79(dq,J=14.9,10.0Hz,1H),2.47-2.39(m,1H),2.36(s,3H).13C NMR(100MHz,CDCl3)δ166.4,145.8,144.1,143.3,140.8,137.9,135.6,131.6,131.4,130.8,130.2,129.7,129.4,129.3,128.9,128.6,128.4,127.4,126.1,125.6,124.3(q,J=280.0Hz),124.2,121.9,117.8,110.5,58.0,38.3(q,J=29.3Hz),21.7.19F NMR(376MHz,CDCl3)δ-61.21(t,J=9.8Hz,3F).HRMS(ESI)calcd for C32H22F3N2O3S[M+H]+571.1298,found 571.1294.
Ia-7:白色固体,收率88%,熔点100-102℃。1H NMR(400MHz,CDCl3)δ8.57(d,J=1.2Hz,1H),7.88-7.75(m,4H),7.55-7.46(m,3H),7.42-7.33(m,4H),7.32-7.27(m,2H),7.24(s,1H),7.19(d,J=8.1Hz,1H),3.97(s,3H),2.80(dq,J=15.0,9.9Hz,1H),2.46-2.38(m,1H),2.36(s,3H).13C NMR(100MHz,CDCl3)δ166.7,166.0,145.4,143.5,143.4,141.1,136.0,134.7,132.2,132.0,129.9,129.6,129.1,128.94,128.91,128.80,128.75,128.4,127.7,127.3,127.2,126.3,124.8,124.4(q,J=280.3Hz),121.7,58.3,52.6,38.2(q,J=29.2Hz),21.7.19F NMR(376MHz,CDCl3)δ-61.20(t,J=9.8Hz,3F).HRMS(ESI)calcd forC33H25F3NO5S[M+H]+604.1400,found 604.1412.
Ia-8:白色固体,收率70%,熔点180-182℃。1H NMR(400MHz,CDCl3)δ7.81-7.71(m,4H),7.33-7.25(m,7H),7.22-7.14(m,3H),6.96(s,1H),2.77(dq,J=15.0,10.1Hz,1H),2.45(s,3H),2.43-2.32(m,1H),2.24(s,3H).13C NMR(100MHz,CDCl3)δ167.1,145.0,144.0,141.0,140.9,138.5,136.8,136.2,132.7,132.3,129.7,129.5,129.4,129.0,128.8,128.4,128.1,127.6,126.4,126.3,124.6(q,J=280.3Hz),124.5,123.6,121.3,58.5,38.0(q,J=29.3Hz),21.6,21.5,21.0.19F NMR(376MHz,CDCl3)δ-61.03(t,J=9.9Hz,3F).HRMS(ESI)calcd for C33H27F3NO3S[M+H]+574.1658,found 574.1665.
Ia-9:白色固体,收率86%,熔点171-173℃。1H NMR(400MHz,CDCl3)δ7.85(d,J=8.9Hz,1H),7.78-7.71(m,3H),7.38-7.27(m,8H),7.19(d,J=8.1Hz,2H),7.13(d,J=2.3Hz,1H),2.79(dq,J=15.0,9.9Hz,1H),2.46(s,3H),2.43-2.36(m,1H),2.33(s,3H).13CNMR(100MHz,CDCl3)δ166.7,145.3,143.6,142.7,140.9,139.0,135.9,133.1,132.6,131.0,129.8,129.5,129.0,128.6,128.2128.1,126.9,126.3,126.2,125.1,124.4(q,J=280.3Hz),121.7,58.3,38.1(q,J=29.1Hz),21.6,21.5.19F NMR(376MHz,CDCl3)δ-61.10(t,J=9.9Hz,3F).HRMS(ESI)calcd for C32H24ClF3NO3S[M+H]+594.1112,found 594.1112
实施例2:含有三氟甲基茚并苯并六元杂环结构化合物Ib-1的合成
Figure BSA0000175209570000071
Ib-1:在250mL四口瓶中加入2-溴苯酚(3.42g,20mmol),Pd(PPh3)2Cl2(0.28g,0.4mmol),CuI(76mg,0.4mmol)和三乙胺100mL。然后在Ar保护下于-78℃置换气体3次。之后用注射器加入苯乙炔(2.24g,22mmol),并在45℃条件下反应4小时。完毕,反应混合液过滤并用乙酸乙酯洗涤。滤液减压脱溶,用石油醚(60-90℃)/乙酸乙酯体系柱层析分离,得到黄色固体IX-1 3.6g,收率93%,熔点55-56℃。随后,将2mmol苯基丙烯酰氯的10mL二氯甲烷溶液于0℃下滴入到1.5mmol化合物IX-1和4mmol三乙胺的20mL二氯甲烷溶液中。室温反应过夜之后,体系用水和饱和食盐水依次洗涤。有机相用无水硫酸镁干燥,减压脱溶。最后,以石油醚(60-90℃)/乙酸乙酯体系柱层析分离,得到白色固体X-1 0.27g,收率56%,熔点81-82℃。最后,向干燥反应管中加入化合物X-1(64.8mg,0.2mmol),CuBr(5.6mg,0.04mmol),托尼试剂(126.4mg,0.4mmol)和1,2-二氯乙烷2mL。然后在Ar保护下于-78℃置换气体3次,在80℃下搅拌反应24小时。之后,反应体系冷却至室温,加入水,用二氯甲烷萃取。有机相依次用饱和碳酸钠洗,饱和氯化钠洗,无水硫酸钠干燥,减压脱溶得到粗产物。粗产品用常压柱层析分离得到白色固体Ib-1 54mg,收率69%,熔点64-65℃。1H NMR(400MHz,CDCl3)δ7.94(dd,J=5.5,2.6Hz,1H),7.53-7.44(m,3H),7.44-7.35(m,4H),7.35-7.27(m,1H),7.27-7.15(m,3H),7.02(t,J=7.5Hz,1H),3.00(dq,J=15.0,10.0Hz,1H),2.63(dq,J=15.1,9.7Hz,1H).13C NMR(100MHz,CDCl3)δ165.5,150.9,144.6,142.4,140.1,132.9,131.4,123.0,129.02,128.99,128.9,128.7,126.9,126.8,126.2,125.0,124.6(q,J=280.3Hz),121.6,118.7,116.9,54.8,39.6(q,J=29.1Hz).19F NMR(376MHz,CDCl3)δ-60.85(t,J=9.9Hz,3F).HRMS(ESI)calcd for C24H16F3O2[M+H]+393.1097,found 393.1091.
实施例3:抗烟草花叶病毒活性的测定,测定程序如下
1.病毒提纯及浓度测定:
病毒提纯及浓度测定参照南开大学元素所生测室编制烟草花叶病毒SOP规范执行。病毒粗提液经2次聚乙二醇离心处理后,测定浓度,4℃冷藏备用。
2.化合物溶液配制:
称量后,原药加入DMF溶解,制得1×105mg/L母液,后用含1‰吐温80水溶液稀释至所需浓度;宁南霉素制剂直接兑水稀释。
3.活体保护作用:
选长势均匀一致的3-5叶期珊西烟,全株喷雾施药,每处理3次重复,并设1‰吐温80水溶液对照。24h后,叶面撒布金刚砂(500目),用毛笔蘸取病毒液,在全叶面沿支脉方向轻擦2次,叶片下方用手掌支撑,病毒浓度10mg/L,接种后用流水冲洗。3d后记录病斑数,计算防效。
4.活体治疗作用:
选长势均匀一致的3-5叶期珊西烟,用毛笔全叶接种病毒,病毒浓度为10mg/L,接种后用流水冲洗。叶面收干后,全株喷雾施药,每处理3次重复,并设1‰吐温80水溶液对照。3d后记录病斑数,计算防效。
5.活体钝化作用:
选长势均匀一致的3-5叶期珊西烟,将药剂与等体积的病毒汁液混合钝化30min后,摩擦接种,病毒浓度20mg/L,接种后即用流水冲洗,重复3次,设1‰吐温80水溶液对照。3d后数病斑数,计算结果。
抑制率(%)=[(对照枯斑数-处理枯斑数)/对照枯斑数]×100%
表1含有三氟甲基茚并苯并六元杂环结构化合物Ia-1~Ia-3、Ia-5和Ib-1的抗烟草花叶病毒(TMV)活性测试结果:
Figure BSA0000175209570000091
从表1中可见含有三氟甲基茚并苯并六元杂环结构化合物Ia-1~Ia-3、Ia-5和Ib-1均表现出抗烟草花叶病毒活性,其中化合物Ib-1的抗TMV活性非常好,超过了商品化品种病毒唑,具备较大的开发价值。
实施例4:杀粘虫、棉铃虫、玉米螟和蚊幼虫活性的测定,测定程序如下:
棉铃虫、粘虫和玉米螟的活性测试
实验方法:采用国际抗性行动委员会(IRAC)提出的浸叶法。药剂配置所需浓度(600mg/L)后,把直径约为5-6cm的叶片浸入药液中5-6秒,取出,放在吸水纸上晾干,放在指定的培养皿中,接入10头3龄幼虫,放入27±1℃的养虫室中观察3-4天后检查结果。
死亡率(%)=(死虫数/总虫数)×100%
校正死亡率(%)=[(处理死亡率-对照死亡率)/(1-对照死亡率)]×100%
蚊幼虫的活性测试
实验方法:尖音库蚊淡色亚种,室内饲养的正常群体。称取供试化合物约5mg于盘尼西林药瓶中,加5mL丙酮(或适宜溶剂),振荡溶解,即为1000mg/L母液。移取0.5mL母液,加入盛有89.9mL水的100mL烧杯中,选取10头4龄初蚊子幼虫,连同10mL饲养液一并倒入烧杯中,其药液的浓度即为5mg/L。放入标准处理室内,24小时检查结果。以含有0.5mL实验溶剂的水溶液为空白对照。
死亡率(%)=(死虫数/总虫数)×100%
校正死亡率(%)=[(处理死亡率-对照死亡率)/(1-对照死亡率)]×100%
表2含有三氟甲基茚并苯并六元杂环结构化合物Ia-1、Ia-3~Ia-9和Ib-1的杀虫活性测试结果:
Figure BSA0000175209570000101
从表2中可以看出,含有三氟甲基茚并苯并六元杂环结构化合物Ia-1、Ia-3~Ia-9和Ib-1都表现出了广谱的杀虫活性。其中,化合物Ia-6和Ia-9在600mg/L浓度下对粘虫致死率都达到100%。进一步降低浓度到200mg/L,化合物Ia-6对粘虫仍表现出100%的杀虫活性。此外,化合物Ia-6在600mg/L浓度下对棉铃虫和玉米螟的致死率也分别达到80%和100%。至于蚊幼虫,化合物Ia-6,Ia-7和Ib-1在10mg/L浓度下都能达到100%的杀虫活性。

Claims (1)

1.一种含有三氟甲基茚并苯并六元杂环结构化合物I在防治烟草花叶病毒、粘虫、棉铃虫、玉米螟和蚊幼虫方面的应用,其特征在于化合物I为Ia-1~Ia-9和Ib-1所示结构的化合物
Figure FSB0000200111980000011
CN201811477903.3A 2018-12-04 2018-12-04 含有三氟甲基茚并苯并六元杂环结构化合物在防治植物病虫害中的应用 Active CN111269180B (zh)

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Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Qiang Meng et al..Copper-Catalyzed Cascade Cyclization of 1,7-Enynes toward Trifluoromethyl-Substituted 1′H‑Spiro[azirine-2,4"-quinolin]-2"(3"H)‑ones.《Org. Lett.》.2017,第19卷 *
Qiang Wang et al..Copper-Catalyzed Trifluoromethylation and Bicyclizations of 1,7-Enynes Leading to Fused Polycycles.《Adv. Synth. Catal.》.2016,第358卷 *
汪清民.天然源植物病毒抑制剂研究的新进展.《 中国化学会第十届全国天然有机化学学术会议论文集》.2014, *

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