CN104292156A - 啶酰菌胺同系物、其非偶联法合成方法及其在制备防治病菌药物中的应用 - Google Patents
啶酰菌胺同系物、其非偶联法合成方法及其在制备防治病菌药物中的应用 Download PDFInfo
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- CN104292156A CN104292156A CN201410546424.8A CN201410546424A CN104292156A CN 104292156 A CN104292156 A CN 104292156A CN 201410546424 A CN201410546424 A CN 201410546424A CN 104292156 A CN104292156 A CN 104292156A
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Abstract
啶酰菌胺同系物、其非偶联法合成方法及其在制备防治病菌药物中的应用。其结构如通式I所示: I式中:Q选自N或CH;R1选自空间体积较大的叔烷基;R2选自氢原子、单取代或多取代卤素、硝基、氰基、烷硫基或磺酰基。本发明提供的啶酰菌胺同系物在很低剂量下就可有效控制有害病菌(常用配方中活性成分的含量为10%-30%)。其非偶联法合成方法工艺简单,易于推广应用。
Description
技术领域
本发明属农用杀菌剂领域,具体地涉及一类啶酰菌胺同系物、其非偶联法合成方法及其在制备防治病菌药物中的应用。
背景技术
啶酰菌胺为德国巴斯夫公司于1992年开发的农用杀菌剂,是线粒体呼吸链中琥珀酸辅酶Q还原酶抑制剂,通过抑制琥珀酸基质的氧的呼吸,从而妨碍病原菌的能量代谢以呈现杀菌活性。可广泛用于草毒、番茄、茄子、黄瓜、扁豆、小豆、洋葱、葡萄、西瓜、甜瓜、莴苣、甘蓝等作物,防治白粉病、灰霉病、菌核病及各种腐烂病等。目前啶酰菌胺及其类似物的合成基本都采用偶联法来合成关键中间体联苯胺,由于需要用到昂贵的原料苯硼酸和贵金属催化剂,合成成本较高。
发明内容
本发明的目的在于提供一种啶酰菌胺同系物、其非偶联法合成方法及其在制备防治病菌药物中的应用。本发明提供的啶酰菌胺同系物,在很低剂量下就可有效控制有害病菌。
完成本申请发明任务的技术方案如下:
本发明提供一种啶酰菌胺同系物,其结构如通式I所示:
式中:
Q选自N或CH;R1选自空间体积较大的叔烷基,如叔丁基、叔戊基,R2选自氢原子、单取代或多取代卤素、硝基、氰基、烷硫基或磺酰基;
上面给出的通式I化合物的定义中,汇集所用术语一般代表如下定义:
卤素:指氟、氯、溴或碘;多取代指2,4-二氯、3,4=二氟、3,4,5-三氟;
烷硫基:指直链或支链烷基取代的烷硫基,例如,甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、正戊基、异戊基、仲戊基或叔戊基;
磺酰基:指甲磺酰基、甲亚磺酰基、乙磺酰基或乙亚磺酰基。
本发明的进一步优化,方案是:
式中:
Q选自N或CH;R1选自空间体积较大的叔烷基,如叔丁基、叔戊基,R2选自氢原子、单取代或多取代卤素、硝基、氰基、烷硫基或磺酰基;
卤素:指氟、氯、溴或碘;多取代指2,4-二氯、3,4=二氟、3,4,5-三氟;
烷硫基:指直链或支链烷基取代的烷硫基,例如,甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、正戊基、异戊基、仲戊基或叔戊基;
磺酰基:指甲磺酰基、甲亚磺酰基、乙磺酰基或乙亚磺酰基。
表1所列举的具体化合物中可以用来说明本发明,但并不限定本发明。
表1
| 编号 | Q | R1 | R2 | Mp(℃) | 编号 | Q | R1 | R2 | Mp(℃) |
| 1 | CH | H | Cl | 138-140 | 41 | N | H | Cl | 140-142 |
| 2 | CH | H | 2,4-2Cl | 150-152 | 42 | N | H | 2,4-2Cl | 158-160 |
| 3 | CH | H | 3,4,5-3F | 134-136 | 43 | N | H | 3,4,5-3F | 144-146 |
| 4 | CH | H | MeS | 130-132 | 44 | N | H | MeS | 142-144 |
| 5 | CH | H | NO2 | 137-139 | 45 | N | H | NO2 | 138-140 |
| 6 | CH | H | CN | 136-138 | 46 | N | H | CN | 141-143 |
| 7 | CH | H | MeSO2 | 142-144 | 47 | N | H | MeSO2 | 146-148 |
| 8 | CH | H | MeSO | 138-140 | 48 | N | H | MeSO | 144-146 |
| 9 | CH | H | EtSO2 | 151-153 | 49 | N | H | EtSO2 | 162-164 |
| 10 | CH | H | EtSO | 142-144 | 50 | N | H | EtSO | 152-154 |
| 11 | CH | Me3C | Cl | 167-168 | 51 | N | Me3C | Cl | 139-141 |
| 12 | CH | Me3C | 2,4-2Cl | 169-171 | 52 | N | Me3C | 2,4-2Cl | 179-181 |
| 13 | CH | Me3C | 3,4,5-3F | 162-164 | 53 | N | Me3C | 3,4,5-3F | 168-170 |
| 14 | CH | Me3C | MeS | 160-162 | 54 | N | Me3C | MeS | 169-171 |
| 15 | CH | Me3C | NO2 | 170-172 | 55 | N | Me3C | NO2 | 180-182 |
| 16 | CH | Me3C | CN | 167-169 | 56 | N | Me3C | CN | 175-177 |
| 17 | CH | Me3C | MeSO2 | 168-170 | 57 | N | Me3C | MeSO2 | 172-174 |
| 18 | CH | Me3C | MeSO | 159-161 | 58 | N | Me3C | MeSO | 167-169 |
| 19 | CH | Me3C | EtSO2 | 174-176 | 59 | N | Me3C | EtSO2 | 176-178 |
| 20 | CH | Me3C | EtSO | 170-172 | 60 | N | Me3C | EtSO | 178-180 |
| 21 | CH | EtMe2C | Cl | 166-168 | 61 | N | EtMe2C | Cl | 174-176 |
| 22 | CH | EtMe2C | 2,4-2Cl | 172-174 | 62 | N | EtMe2C | 2,4-2Cl | 180-182 |
| 23 | CH | EtMe2C | 3,4,5-3F | 165-167 | 63 | N | EtMe2C | 3,4,5-3F | 172-174 |
| 24 | CH | EtMe2C | MeS | 157-159 | 64 | N | EtMe2C | MeS | 167-169 |
| 25 | CH | EtMe2C | NO2 | 173-175 | 65 | N | EtMe2C | NO2 | 181-183 |
| 26 | CH | EtMe2C | CN | 170-172 | 66 | N | EtMe2C | CN | 177-179 |
| 27 | CH | EtMe2C | MeSO2 | 173-175 | 67 | N | EtMe2C | MeSO2 | 183-185 |
| 28 | CH | EtMe2C | MeSO | 169-171 | 68 | N | EtMe2C | MeSO | 176-178 |
| 29 | CH | EtMe2C | EtSO2 | 177-179 | 69 | N | EtMe2C | EtSO2 | 188-190 |
| 30 | CH | EtMe2C | EtSO | 170-172 | 70 | N | EtMe2C | EtSO | 174-176 |
| 31 | CH | H | Br | 142-144 | 71 | N | H | Br | 152-154 |
| 32 | CH | H | F | 132-134 | 72 | N | H | F | 140-142 |
| 33 | CH | H | I | 142-144 | 73 | N | H | I | 150-152 |
| 34 | CH | H | H | 122-124 | 74 | N | H | H | 132-134 |
| 35 | CH | Me3C | Br | 177-179 | 75 | N | Me3C | Br | 189-191 |
| 36 | CH | Me3C | F | 165-167 | 76 | N | Me3C | F | 176-178 |
| 37 | CH | Me3C | I | 176-178 | 77 | N | Me3C | I | 184-188 |
| 38 | CH | EtMe2C | Br | 177-179 | 78 | N | EtMe2C | Br | 189-191 |
| 39 | CH | EtMe2C | F | 168-170 | 79 | N | EtMe2C | F | 176-178 |
| 40 | CH | EtMe2C | I | 180-182 | 80 | N | EtMe2C | I | 188-190 |
进一步限定,本发明所述的啶酰菌胺同系物是指:表1中除Q=N,R1=H,R2=Cl(化合物41)外的化合物。作为优选方案,特指Q=N,R1=H,R2=SMe,CN,SO2Me等的化合物。
完成本申请第二个发明目的的技术方案是:上述啶酰菌胺同系物的非偶联法合成方法:其特征在于,步骤如下:
其中Q,R1和R2的定义与上相同。
(1)取代联苯II与烷基化试剂RX在质子酸或路易斯酸催化下,在适宜的溶剂中和适宜的温度下进行烷基化反应得到通式III所示化合物。所述烷基化试剂RX为叔丁醇、叔戊醇、甲基叔丁基醚、氯代叔丁烷、溴代叔丁烷、氯代叔戊烷或溴代叔戊烷;所述质子酸为浓硫酸、磷酸、对甲苯磺酸或三氟甲磺酸,所述路易斯酸为三氯化铝、三氟化硼或四氯化锆;
反应在适宜的溶剂中进行。适宜的溶剂可选自二氯甲烷、氯苯等;
适宜的反应温度为40~120℃,通常为40~80℃;
(2)通式III所示化合物在适宜温度下与混酸作用选择性硝化得到硝化产物IV。适宜的反应温度为0~80℃,通常为20~40℃。适宜的溶剂选自乙酸酐、乙酸或乙酸乙酯;
(3)通式IV所示化合物在适宜溶剂中在一定氢气压力下催化氢化或使用还原剂还原得到还原产物V。所述催化氢化的催化剂为Raney Ni或5%Pd/C,所述氢气压力为1~20个大气压,适宜的反应溶剂选自甲醇或乙醇;所述还原剂为SnCl2、水合肼或Fe/HCl;适宜的反应温度为20~80℃;
(4)在适宜的溶剂中,通式V所示化合物在缚酸剂存在下与酰氯VI缩合生成酰胺I(R≠H),所述缚酸剂为碳酸钾、碳酸钠、碳酸铯、氢氧化钾、三乙胺、吡啶或二甲氨基吡啶;适宜的溶剂选自二氯甲烷、甲苯、二甲苯或纯苯;适宜的反应温度为25~130℃,通常为80~100℃;
(5)通式I(R≠H)所示化合物在路易斯酸作用下与烷基受体作用得到脱烷基化合物I(R=H),所述的烷基受体为苯,所述路易斯酸选自三氯化铝、四氯化锆。
完成本申请第三个发明任务的技术方案是,上述啶酰菌胺同系物在制备防治病菌药物中的应用。
通式I所示化合物对农业技术领域中的有害病菌表现出高活性,因此本发明的另一技术方案涉及通式I所示化合物在农业、园艺等其它领域中防治病菌的应用。尤其是通式I化合物对下列科的品种有活性:白粉病、炭疽病、立枯病、枯萎病、灰霉病、菌核病、各种腐烂病、褐腐病和根腐病等。
同时,通式I所示化合物对环境有益的昆虫、哺乳动物、鸟和鱼等具有低毒性,而且对植物没有毒性。
由于其积极的特性,通式I化合物可用于保护农业和园艺中的主要作物免受有害病菌的伤害。每公顷20-500克的化合物剂量即能提供有效的防治。
为了时机有效地应用于农业,使用一种或多种通式I化合物的组合物通常是有益的。
因此,本发明的另一种技术方案还包括一组杀菌剂组合物,含有作为活性组分的通式I化合物和农业上可接受的载体,组合物中活性成分的重量百分比为1%-99%。
组合物的使用形式可以是可湿性粉剂、乳油、微乳剂或悬浮剂等,其类型选择取决于具体应用的需要。
组合物是以已知的方式制备的。几种剂型的具体配置方法举例如下:
可湿性粉剂的配制:按配方要求,将活性组分、各种表面活性剂及固体稀释剂(如粘土、硅酸盐)等成分混合,经超细粉碎机粉碎后即得到预定含量(例如10%-50%)的可湿性粉剂产品。
悬浮剂的配制:常用配方中活性成分的含量为10%-30%。以水或白蜡为介质,将活性组分、分散剂、助悬剂和抗冻剂等加入到砂磨机中进行研磨,制成悬浮剂。
本发明提供的啶酰菌胺同系物在很低剂量下就可有效控制有害病菌(常用配方中活性成分的含量为10%-30%)。其非偶联法合成方法工艺简单,易于推广应用。
具体实施方式
以下具体实施例用来进一步说明本发明,但本发明不仅限于这些例子。
实施例1.2-(2-氯苯甲酰氨基)-4′-氯联苯(化合物1)的制备
(1)4-叔丁基-4′-氯联苯的制备
将5.66g4'-氯联苯溶于50mL二氯甲烷中,然后加入10.5g四氯化锆,搅拌下滴加4g甲基叔丁基醚,控制温度不超过40℃,加完后继续反应8h。冷却,将反应液慢慢地倒在冰水中。用二氯甲烷萃取(3×20mL),萃取液依次用水、碳酸钠水溶液和水洗涤至中性,无水硫酸钠干燥,过滤,滤液减压脱溶后得白色粗产品,用95%乙醇重结晶后得到产物纯品,收率64%,熔点146-148℃,1H-NMR(CDCl3,δppm):1.35(s,9H),7.25-7.52(m,8H)。
(2)2-硝基-4-叔丁基-4′-氯联苯的制备
将1.11g4-叔丁基-4’-氯联苯溶于15mL乙酸酐中,水浴冷却下滴加5mL醋酸和3mL发烟HNO3的混合液,控制温度不高于20℃,加完后继续反应4h。向反应液中加入25mL水并搅拌,有浅黄色固体析出,抽滤,水洗至中性,95%乙醇重结晶得淡黄色产品,收率90%,熔点:95-96℃,1H-NMR(CDCl3,δppm):1.39(s,9H),7.22-7.87(m,7H)。
(3)2-氨基-4-叔丁基-4′-氯联苯的制备
将0.054mol2-硝基-4-叔丁基-4′-氯联苯溶于120mL乙醇中,加入0.24mol SnCl2和60mL盐酸,回流反应4h。冷却,用3倍水稀释,过滤析出的铵盐,然后将滤出物加到KOH溶液中,搅拌4h,抽滤,水洗至中性,烘干,重结晶得白色粉末4a,收率85%,熔点99-100℃,1H-NMR(CDCl3,δppm):1.41(s,9H),7.22-7.87(m,7H),3.71(s,2H)。
(4)2-(2-氯苯甲酰氨基)-4-叔丁基-4′-氯联苯的制备
将2.6g2-氨基-4-叔丁基-4′-氯联苯溶于40mL二氯甲烷中,加入1.8g的2-苯甲酰氯和少量4-二甲氨基吡啶,室温搅拌8h。向反应液中加入饱和碳酸氢钠溶液调pH至中性,有机相用水洗三次,无水硫酸钠干燥,浓缩,得白色固体,重结晶后得白色针状晶体,收率92%,熔点167-169℃,1H-NMR(CDCl3,δppm):1.41(s,9H),7.17-7.84(m,7H),8.14(d,1H)。
(5)2-(2-氯苯甲酰胺基)-4′-氯联苯(化合物1)的制备
将3.98g2-(2-氯苯甲酰氨基)-4-叔丁基-4′-氯联苯溶于100mL苯中,加入6.7g的无水AlCl3,在45℃下搅拌反应40h。将反应物倒入冰水中,边搅拌边加入盐酸,然后用乙酸乙酯萃取,萃取液用水洗至中性,无水硫酸钠干燥,脱溶后用乙酸乙酯-石油醚重结晶,得白色粉末,收率32%,熔点138-140℃,1H-NMR(CDCl3,δppm):7.26-7.46(m,8H),8.16-8.46(m,3H),8.46(d,J=1.8Hz,1H)。
实施例2.2-(2-氯吡啶-3-甲酰胺基)-4′-甲磺酰基联苯(化合物47)的合成
(1)4-甲磺酰基联苯的制备
将50g4-甲硫基联苯溶于250mL冰乙酸中,加入2.5g钨酸钠,升温至95℃,搅拌下滴加86g30%的双氧水,加完后继续保温反应6小时。降至室温,有大量固体析出,过滤,水洗,干燥,得白色晶体52g,收率89.7%,熔点138-140℃。1H-NMR(CDCl3,δppm):3.42(s,3H),7.41-7.52(m,5H),7.88-7.92(m,4H)。
(2)4-叔丁基-4′-甲磺酰基联苯的制备
将4.64g4-甲磺酰基联苯溶于50mL二氯甲烷中,然后加入11.2g无水三氯化铝,搅拌下滴加4g甲基叔丁基醚,控制温度不超过40℃,加完后继续反应8h。冷却,将反应液慢慢地倒在冰水中。用二氯甲烷萃取(3×20mL),萃取液依次用水、碳酸钠水溶液和水洗涤至中性,无水硫酸钠干燥,过滤,滤液减压脱溶后得白色粗产品,用95%乙醇重结晶后得到产物纯品,收率72%,熔点127-129℃,1H-NMR(CDCl3,δppm):1.32(s,9H),3.31(s,3H),7.37-7.42(m,4H),7.82-7.90(m,4H)。
(3)4-叔丁基-2-硝基-4′-甲磺酰基联苯的制备
将2.88g4-叔丁基-4’-甲磺酰基联苯溶于30mL乙酸酐中,水浴冷却下滴加10mL醋酸和6mL发烟HNO3的混合液,控制温度不高于20℃,加完后继续反应4h。向反应液中加入50mL水并搅拌,有浅黄色固体析出,抽滤,水洗至中性,95%乙醇重结晶得淡黄色产品,收率91%,熔点:159-161℃,1H-NMR(CDCl3,δppm):1.39(s,9H),3.36(s,3H),7.37-7.42(m,3H),7.82-7.90(m,5H)。
(4)4-叔丁基-2-氨基-4′-甲磺酰基联苯的制备
将6.66g2-硝基-4-叔丁基-4′-甲磺酰基联苯溶于60mL乙醇中,加入11.4g SnCl2和60mL盐酸,回流反应4h。冷却,用3倍水稀释,过滤析出的铵盐,然后将滤出物加到KOH溶液中,搅拌4h,抽滤,水洗至中性,烘干,重结晶得白色粉末,收率77%,熔点131-133℃,1H-NMR(CDCl3,δppm):1.33(s,9H),3.35(s,3H),4.01(bs,2H),7.36-7.48(m,5H),7.72-7.84(m,2H)。
(5)4-叔丁基-2-(2-氯吡啶-3-甲酰胺基)-4′-甲磺酰基联苯(化合物57)的制备
将3.03g2-氨基-4-叔丁基-4′-甲磺酰基联苯溶于40mL二氯甲烷中,加入1.93g2-氯烟酰氯和少量4-二甲氨基吡啶,室温搅拌6h。向反应液中加入饱和碳酸氢钠溶液调pH至中性,有机相用水洗三次,无水硫酸钠干燥,浓缩,得白色固体,重结晶后得白色针状晶体,收率96%,熔点172-174℃,1H-NMR(CDCl3,δppm):1.43(s,9H),3.46(s,3H),7.27-7.84(m,7H),8.14(d,1H),8.20(d,1H),8.60(s,1H)。
(6)2-(2-氯吡啶-3-甲酰胺基)-4′-甲磺酰基联苯(化合物47)的制备
将4.42g2-(2-氯吡啶-3-甲酰胺基)-4-叔丁基-4′-氯联苯溶于100mL苯中,加入6.7g的无水AlCl3,在60℃下搅拌反应40h。将反应物倒入冰水中,边搅拌边加入盐酸,然后用乙酸乙酯萃取,萃取液用水洗至中性,无水硫酸钠干燥,脱溶后用乙酸乙酯-石油醚重结晶,得白色粉末,收率46%,熔点146-148℃,1H-NMR(CDCl3,δppm):7.26-7.46(m,8H),8.16-8.46(m,3H),8.46(d,J=1.8Hz,1H)。
实施例3.50%化合物41可湿性粉剂
将各组分充分混合后,经超细粉碎机粉碎,得到50%的可湿性粉剂
实施例4.20%化合物35悬浮剂
实施例5.离体杀菌活性测定
采用生长速率法。在超净台中,用接种针供试菌种管中挑取一块带有目标菌的培养基小块,放到含PDA培养基的大培养皿中,迅速盖上培养皿,用封条封紧,在恒温培养箱中培养。当供试菌在培养皿中菌落分布均匀以后,用内径为0.70cm取样器打孔,得到直径为0.70cm的菌饼。向直径为10cm的培养皿内注入1mL待测药液,然后在向其中注入9mL(温度85~90℃)培养基,在超净台上摇匀,铺成一均匀平面。初测试验设定浓度为原药50μg/mL。将打制好的菌饼,置于带药培养基上,每只培养皿内放入1个菌饼;重复两次。将培养皿放入培养箱中培养,24~48小时后,根据目标菌落扩展状况检查结果,并在适宜的时间测定每个菌饼扩展的菌落直径。根据菌落扩展直径与空白对照直径计算抑制率。
菌丝生长抑制率(%)=[(对照菌落直径-药剂处理菌落直径)/对照菌落直径]×100%。
部分化合物的杀菌效果见表2。
表2.化合物I的杀菌活性(抑制率%,50μg/mL)
“-”表示活性不明显。
工业应用:
本发明提供了结构通式如式I所示联苯2-酰胺基化合物及其非偶联制备方法与应用,该化合物是本发明的发明人经过广泛调研和合理设计,通过对大量化合物的筛选,筛选出的一类优选的杀菌活性高,且制备方法简便,使得该化合物的实际应用价值大大提高。
杀菌活性实验表明,式(I)所示联苯2-酰胺基化合物对棉花立枯、黄瓜炭疽、油菜菌核和番茄灰霉等植物病害具有很高的防效,可作为农用杀菌剂使用。
式(I)。
实施例6,与以上实施例基本相同,但其中的通式中:Q选自N;R1选自空间体积较大的叔烷基;R2选自氢原子。
实施例7,与以上实施例基本相同,但其中的通式中:Q选自CH;R1选自空间体积较大的叔烷基;R2选自单取代卤素。
实施例8,与以上实施例基本相同,但其中的通式中:R2选自多取代卤素。
实施例9,与以上实施例基本相同,但其中的通式中R2选自硝基。
实施例10,与以上实施例基本相同,但其中的通式中:R2选自氰基。
实施例11,与以上实施例基本相同,但其中的通式中:R2选自烷硫基或磺酰基。
实施例12,与以上实施例基本相同,但其中的通式中:R2选自磺酰基。
实施例13,与以上实施例基本相同,但其中所述的空间体积较大的叔烷基是叔丁基;所述的直链或支链烷基取代的烷硫基是:甲基;所述的卤素是:氟;所述的烷硫基是:直链取代的烷硫基;所述的磺酰基是:甲磺酰基。
实施例14,与以上实施例基本相同,但其中所述的空间体积较大的叔烷基是叔戊基;所述的直链或支链烷基取代的烷硫基是:乙基;所述的卤素是:氯;所述的烷硫基是:支链烷基取代的烷硫基;所述的磺酰基是:甲亚磺酰基。
实施例15,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:正丙基;所述的卤素是:溴;所述的磺酰基是:乙磺酰基。
实施例16,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:异丙基;所述的卤素是碘;所述的磺酰基是:乙亚磺酰基。
实施例17,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:正丁基;所述的多取代卤素是:2,4-二氯。
实施例18,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:仲丁基;所述的多取代卤素是:3,4=二氟。
实施例19,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:异丁基;所述的多取代卤素是:3,4,5-三氟。
实施例20,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:叔丁基。
实施例21,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:正戊基。
实施例22,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:异戊基。
实施例23,与以上实施例基本相同,但其中所述的直链或支链烷基取代的烷硫基是:仲戊基。
Claims (10)
1.一种啶酰菌胺同系物,其特征在于,其结构如通式I所示:
式中:
Q选自N或CH;
R1选自空间体积较大的叔烷基;
R2选自氢原子、单取代或多取代卤素、硝基、氰基、烷硫基或磺酰基。
2.根据权利要求1所述的啶酰菌胺同系物,其特征在于,
所述的空间体积较大的叔烷基是叔丁基或叔戊基;
所述的直链或支链烷基取代的烷硫基是:甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、正戊基、异戊基、仲戊基或叔戊基;
所述的卤素是:氟、氯、溴或碘;
所述的多取代卤素是:2,4-二氯、3,4=二氟、3,4,5-三氟;
所述的烷硫基是:直链或支链烷基取代的烷硫基;
所述的磺酰基是:甲磺酰基、甲亚磺酰基、乙磺酰基或乙亚磺酰基。
3.根据权利要求1或2所述的啶酰菌胺同系物,其特征在于,式中:
Q选自N或CH;R1选自叔丁基、叔戊基,R2选自氢原子、单取代或多取代卤素、硝基、氰基、烷硫基或磺酰基;
卤素选自:氟、氯、溴或碘;多取代卤素选自:2,4-二氯、3,4=二氟或3,4,5-三氟;
烷硫基选自:甲基、乙基、正丙基、异丙基、正丁基、仲丁基、异丁基、叔丁基、正戊基、异戊基、仲戊基或叔戊基;
磺酰基选自:甲磺酰基、甲亚磺酰基、乙磺酰基或乙亚磺酰基。
4.根据权利要求3所述的啶酰菌胺同系物,其特征在于,
所述的啶酰菌胺同系物是指表1所列举的具体化合物,
表1
5.根据权利要求4所述的啶酰菌胺同系物,其特征在于,
所述的啶酰菌胺同系物是指:Q=N,R1=H,R2=SMe,CN,SO2Me的化合物。
6.权利要求1所述啶酰菌胺同系物的非偶联法合成方法:其特征在于,步骤如下:
式中:
Q选自N或CH;
R1选自空间体积较大的叔烷基;
R2选自氢原子、单取代或多取代卤素、硝基、氰基、烷硫基或磺酰基;
具体步骤是:
(1)取代联苯II与烷基化试剂RX在质子酸或路易斯酸催化下,在适宜的溶剂中和适宜的温度下进行烷基化反应得到通式III所示化合物;所述烷基化试剂RX为叔丁醇、叔戊醇、甲基叔丁基醚、氯代叔丁烷、溴代叔丁烷、氯代叔戊烷或溴代叔戊烷;所述质子酸为浓硫酸、磷酸、对甲苯磺酸或三氟甲磺酸,所述路易斯酸为三氯化铝、三氟化硼或四氯化锆;
反应在适宜的溶剂中进行,该适宜的溶剂选自二氯甲烷或氯苯;
适宜的反应温度为40~120℃,通常为40~80℃;
(2)通式III所示化合物在适宜温度下与混酸作用选择性硝化得到硝化产物IV;该适宜的反应温度为0~80℃,溶剂选自乙酸酐、乙酸或乙酸乙酯;
(3)通式IV所示化合物在适宜溶剂中在一定氢气压力下催化氢化或使用还原剂还原得到还原产物V;所述催化氢化的催化剂为Raney Ni或5%Pd/C,所述氢气压力为1~20个大气压;所述适宜的反应溶剂选自甲醇或乙醇;所述还原剂为SnCl2、水合肼或Fe/HCl;所述适宜的反应温度为20~80℃;
(4)在适宜的溶剂中,通式V所示化合物在缚酸剂存在下与酰氯VI缩合生成酰胺I(R≠H),所述缚酸剂为碳酸钾、碳酸钠、碳酸铯、氢氧化钾、三乙胺、吡啶或二甲氨基吡啶;所述适宜的溶剂选自二氯甲烷、甲苯、二甲苯或纯苯;所述适宜的反应温度为25~130℃,通常为80~100℃;
(5)通式I(R≠H)所示化合物在路易斯酸作用下与烷基受体作用得到脱烷基化合物I(R=H),所述的烷基受体为苯,所述路易斯酸选自三氯化铝、四氯化锆。
7.根据权利要求6所述啶酰菌胺同系物的非偶联法合成方法:其特征在于,
步骤(1)中所述适宜的反应温度为40~80℃;
步骤(2)中所述适宜的反应温度为20~40℃;
步骤(4)中所述适宜的反应温度为80~100℃。
8.权利要求1所述啶酰菌胺同系物在制备防治病菌药物中的应用。
9.根据权利要求8所述的啶酰菌胺同系物在制备防治病菌药物中的应用,其特征在于,所述防治病菌药物是指防治以下病症:白粉病、炭疽病、立枯病、枯萎病、灰霉病、菌核病、各种腐烂病、褐腐病和根腐病。
10.根据权利要求8或9所述的啶酰菌胺同系物在制备防治病菌药物中的应用,其特征在于,所述的防治剂量为:每公顷20-500克的啶酰菌胺同系物化合物;或者,
杀菌剂采用含有作为活性组分的通式I化合物和农业上可接受的载体构成的组合物,该组合物中活性成分的重量百分比为1%-99%。
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