CN102633697A - 环烷基磺酰胺系列化合物、制备方法和作为杀菌剂、除草剂的用途 - Google Patents
环烷基磺酰胺系列化合物、制备方法和作为杀菌剂、除草剂的用途 Download PDFInfo
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Abstract
本发明涉及一类化学结构新颖的通式分别为A、B、C的环烷基磺酰胺类化合物及其合成方法和作为农用杀菌剂与除草剂。以环烷酮为起始原料,经过磺化、氯化、胺化合成得到2-氧代环烷基磺酰胺A,将A用硼氢化钠还原制得2-羟基环烷基磺酰胺B,其再与酰氯进行酯化反应后合成了2-酰氧基环烷基磺酰胺类化合物C。通式为A、B、C的化合物对棉花炭疽、小麦赤霉、番茄早疫、黄瓜褐斑、番茄灰霉、玉米小斑、核盘菌、玉米弯孢和苹果轮纹等病原菌的菌丝生长有抑制作用,用于其病害的防治;对反枝苋、稗草等单双子叶杂草具有抑制生长的作用。A、B式中n=1,2,3,4,8,C式中n=2,R为取代苯基和2-烷氧基甲基。
Description
技术领域
本发明属于一种农用化学品,特别是含有N-(2,4,5-三氯苯基)-2-取代环烷基磺酰胺类系列化合物、合成方法和作为杀菌剂、除草剂的用途。
背景技术
2-氧代环烷基磺酰胺类化合物对灰霉病菌Botrytis cinerea和菌核病菌Sclerotiniasclerotiorum(Lib.)de Bary具有良好的杀菌活性(CN1900059A),其结构通式如下:
式中n=4,5;R为带有0-2个取代基的苯基
后经研究发现化合物N-(2-三氟甲基-4-氯苯基)-2-氧代环己烷基磺酰胺对黄瓜褐斑病菌Corynespora cassiicola和梨黑星病菌Venturia nashicola具有很好的防治效果(CN101720764A)。构效关系表明三氟甲基等吸电子基团对提高杀菌活性起到重要作用。新的含氟2-氧代环己烷基磺酰胺类化合物被合成出来(杨红业,等.农药学学报,2010,12(4):449-452),其在50μg/mL下对棉花立枯病菌Rhizoctonia solani、黄瓜灰霉病菌和油菜菌核病菌的抑制率大于95%。经先导结构展开,将环己酮变化成苯并环己酮后,1-氧代四氢萘基-2-磺酰胺类化合物被合成得到(CN101503381),在50μg/mL下对立枯丝核菌、灰霉病菌、芦笋茎枯病菌Phomopsis asparagi(Sacc.)Bubak等的抑制率大于85%。将2-氧代环烷基磺酰胺类化合物的2-位的羰基还原成羟基,同时改变环烷烃环的大小,2-羟基环戊、己、庚、辛、十二烷基磺酰胺类化合物被合成得到(Li Xing-hai,et al.J Agr Food Chem,2010,58(21):11384-11389),其对灰霉病菌的杀菌活性好于对照药剂嘧霉胺pyrimethanil和腐霉利procymidone,其中N-(2-三氟甲基-4-氯苯基)-2-氧代和2-羟基环戊、己、庚、辛、十二烷基磺酰胺共10个化合物具有广谱的杀菌活性(李兴海,等.农药学学报,2011,13(4):433-436),对小麦赤霉病菌Gibberella zeae(Schw.)Petch、棉花黄萎病菌Verticillium dahliae、油菜菌核病菌、水稻恶苗病菌Fusarium moniliforme Sheld.、小麦根腐病菌Bipolaris sorokiniana(Sacc.)Shoem.、玉米弯孢霉菌叶斑病菌Curvularia lunata(Walker)Boed.、棉花炭疽病菌Colletotrichumgossypii Southw与黄瓜褐斑病菌8种病原菌的EC50值在20μg/mL以内。
发明内容
本发明的目的是在上述研究的基础上,合成结构新颖,合成工艺简单,成本低廉的N-(2,4,5-三氯苯基)-2-取代环烷基磺酰胺类化合物,除了具有良好的杀菌活性外,还具有除草活性。
本发明提供的N-(2,4,5-三氯苯基)-2-取代环烷基磺酰胺类系列化合物,其化合物A、B、C具体结构通式如下:
A、B式中n=1,2,3,4,8;C式中n=2,R为取代苯基和2-烷氧基甲基。合成路线如下:
A、B式中n=1,2,3,4,8;C式中n=2,R为取代苯基和2-烷氧基甲基。
以环戊酮、环己酮、环庚酮、环辛酮、环十二酮为原料,经过磺化、氯化、胺化多步反应合成得到N-(2,4,5-三氯苯基)-2-氧代环烷基磺酰胺化合物A,其经过硼氢化钠还原得到N-(2,4,5-三氯苯基)-2-羟基环烷基磺酰胺化合物B,化合物B再与酰氯进行酯化反应后合成得到N-(2,4,5-三氯苯基)-2-酰氧基环烷基磺酰胺化合物C。
化合物A、B、C对棉花炭疽、小麦赤霉、番茄早疫、黄瓜褐斑、番茄灰霉、玉米小斑、核盘菌、玉米弯孢和苹果轮纹等病原菌的菌丝生长有抑制作用,用于其病害的防治;对反枝苋、稗草等单、双子叶杂草具有抑制生长的作用。
本发明的积极效果:N-(2,4,5-三氯苯基)-2-取代环烷基磺酰胺类系列化合物合成结构新颖,合成工艺简单,成本低廉,除了具有良好的杀菌活性外,还具有除草活性。
具体实施方式
实例1.2-氧代环烷基磺酸盐的制备
(1)2-氧代环戊烷基磺酸钾盐的制备
将18.8g(0.2mol)环戊酮,80mL 1,2-二氯乙烷加入250mL三口瓶中,冷却到-30℃,氮气保护和搅拌下分批加入三氧化硫·二氧六环(1∶1)复合物34.0g(0.2mol),慢慢上升,控制反应温度在-30~-25℃之间,大约15分钟加完后,在-30~-25℃之间,-15~-10℃之间和0-5℃之间各搅拌反应1h。将反应液重新降温到-20℃,向反应液中加入100mL冰水,分出水层,二氯乙烷层用30mL×2的水萃取,合并水层,用二氯乙烷30mL×2洗涤后,用碳酸钾中和到pH=6-7,抽滤后减压浓缩,得黄色固体,用甲醇350mL加热提取,减压浓缩后得黄色固体,用甲醇100mL重结晶得淡黄色固体29.4g,收率73.5%,熔点214-216℃。
参考文献:Li Xing-hai,Wu De-cai,Qi Zhi-qiu,etal.Synthesis,Fungicidal Activity,andStructure-Activity Relationship of 2-Oxo and 2-Hydroxycycloalkylsulfonamides.Journal ofAgricultural andFood Chemistry,2010,58(21):11384-11389.
(2)2-氧代环己烷基磺酸钾盐的制备
将104mL(0.99mol)环己酮,240mL 1,2-二氯乙烷加入1000mL三口瓶中,冷却到-5℃,氮气保护和搅拌下分批加入三氧化硫·二氧六环(1∶1)复合物168g(1.0mol)。在-5~5℃之间反应2h后,向反应液中加入150mL水,分出水层,二氯乙烷层用100mL×3的水萃取,合并水层,用80g Ba(OH)2·8H2O中和H2SO4,有BaSO4沉淀生成,抽滤,得深红色水溶液,冰水冷却下用氢氧化钾中和到pH=7-8,水溶液变为黄色,再次抽滤,60℃脱溶掉大部分水,得黄色粘稠液,冷却后有黄色晶体析出,抽滤得黄色固体产物115g,收率53%,m.p.235-238℃。
参考文献:Li Xing-Hai,Yang Xin-Ling,Ling Yun,et al.The Synthesis and fungicidal Activityof Novelα-Oxocycloalkylsulfonylureas.Journal of Agricultural and Food Chemistry,2005,53(6):2202-2206.
(3)2-氧代环庚烷基磺酸钾盐的制备
将11.5g(0.10mol)环庚酮,40mL 1,2-二氯乙烷加入250mL三口瓶中,冰水浴冷却到5℃,氮气保护和搅拌下分批加入三氧化硫·二氧六环(1∶1)复合物17.5g(0.10mol)。0~5℃反应3小时后,向反应液中加入40mL冰水,分出水层,二氯乙烷层用10mL×3的水萃取,合并水层,用Ba(OH)2·8H2O中和H2SO4,有BaSO4沉淀生成,抽滤掉BaSO4,滤液用氢氧化钾中和到pH=7-8,65℃减压浓缩除掉大部分水,得黄色粘稠液,冷却后有白色晶体析出,抽滤得白色固体产物16.3g,收率71%,熔点268-270℃。
参考文献:Li Xing-Hai,Yang Xin-Ling,Ling Yun,et al.The Synthesis and fungicidal Activityof Novelα-Oxocycloalkylsulfonylureas.Journal of Agricultural and Food Chemistry,2005,53(6):2202-2206.
(4)2-氧代环辛烷基磺酸钾盐的制备
将25.2g(0.2mol)环辛酮,150mL 1,2-二氯乙烷加入250mL三口瓶中,在10~15℃,氮气保护和搅拌下分批加入三氧化硫·二氧六环(1∶1)复合物34.0g(0.2mol)。15℃左右搅拌反应1h。将反应液重新降温到0℃,向反应液中加入100mL冰水,分出水层,二氯乙烷层用30mL×3的水萃取,合并水层,用二氯乙烷20mL×2洗涤后,用Ba(OH)2·8H2O中和H2SO4,有BaSO4沉淀生成,抽滤掉BaSO4,滤液用碳酸钾中和到pH=7-8,有白色固体析出,抽滤后得白色固体19.0g,滤液脱溶后得到白色固体24.0g,共得粗产物43.0g,收率88%,熔点235-238℃。
参考文献:Li Xing-hai,Wu De-cai,Qi Zhi-qiu,et al.Synthesis,Fungicidal Activity,andStructure-Activity Relationship of 2-Oxo and 2-Hydroxycycloalkylsulfonamides.Journal ofAgricultural and Food Chemistry,2010,58(21):11384-11389.
(5)2-氧代环十二烷基磺酸钾盐的制备
将54.6g(0.3 mol)环十二酮,91mL 1,2-二氯乙烷加入250mL三口瓶中,水浴冷却,氮气保护和搅拌下分批加入三氧化硫·二氧六环(1∶1)复合物65.0g(0.39mol)。控制反应温度在30℃以下,室温搅拌反应4h。有大量黄色固体析出,冰水冷却下,向反应液中加入200mL冰水和100mL二氯乙烷。分出水层,二氯乙烷层用水50mL×3萃取,合并水层,冰水冷却下用氢氧化钾中和到pH=7-8,有大量白色固体析出,抽滤后得到白色固体产物81g,收率91%,熔点294℃。
参考文献:汪晓平,王道全,N-取代-2-氧代环十二烷基磺酰胺的合成机杀菌活性,高等学校化学学报,1997,18(6):889~893
实例2.N-(2,4,5-三氯苯基)-2-氧代环戊烷基磺酰胺A1的合成
室温下,将30mL干燥的二氯甲烷、2.0g(10mmol)2-氧代环戊烷基磺酸钾、0.05mL无水N,N-二甲基甲酰胺加入50mL反应瓶中,搅拌5min使原料混合均匀后,缓慢滴加1.3 g(10.5mmol)草酰氯,室温下搅拌反应1h。将上述反应液抽滤,室温下将滤液缓慢滴加到1.4g(7mmol)2,4,5-三氯苯胺+1.3g(13mmol)三乙胺+10mL二氯甲烷组成的反应液中,滴加完毕,搅拌反应4h。将反应液先后用3mol/L稀盐酸,饱和碳酸氢钠和蒸馏水各15mL分别洗涤,反应液用无水硫酸钠干燥1h后,抽滤,滤液经减压浓缩得到粗产物,用丙酮+石油醚重结晶得到产物2.5g。收率:73%;熔点:149~151℃;状态:白色晶体;1H NMR(CDCl3,300MHz),δ(ppm):1.85-2.62(m,6H,3CH2),3.88(t,1H,CH,J=8.85Hz),7.27(br,1H,NH),7.43(s,1H,C6H2),7.76(s,1H,C6H2);IR,(v,cm-1):3268(NH),2919,2852(CH2),1750(C=O),1466(C=C),1336,1156(S=O).
按照上述的方法合成得到其它N-(2,4,5-三氯苯基)-2-氧代环己、庚、辛、十二烷基磺酰胺A2~A5。化合物的理化数据见表1,波普数据见表2。
表1化合物A1~A5的理化性质和收率
表2化合物A2~A5的核磁共振氢谱(1H NMR)和红外光谱(IR)数据
实例3.N-(2,4,5-三氯苯基)-2-羟基环烷基磺酰胺化合物B1~B4的合成通法
在5℃下将3.42g(0.01mol)N-(2,4,5-三氯苯基)-2-氧代环戊烷基磺酰胺A1,40mL甲醇加入到100mL的三口瓶中,用滴液漏斗缓慢滴加0.60g(0.016mol)NaBH4+8mL1%NaOH+8mLCH3OH配成的硼氢化钠溶液,30min滴加完毕,搅拌反应1小时。将反应液减压浓缩,向反应液中加入80mL乙酸乙酯和30mL 5%稀盐酸,搅拌5min,转入分液漏斗中,振荡后分出水层,乙酸乙酯层用5%稀盐酸和水各15mL分别洗涤一次,用无水硫酸钠干燥后,过滤,减压浓缩得到还原后产物N-(2,4,5-三氯苯基)-2-羟基环戊烷基磺酰胺3.00g。收率:86%;熔点:122-123℃;状态:黄色晶体;1H NMR,δ(ppm):1.60-2.39(m,6H,3CH2),2.35(br,1H,OH),3.59(m,1H,CH-O),4.53(dd,1H,J=9.30,4.80Hz,CH-SO2,),7.14(br,1H,NH),7.46(s,1H,C6H),7.88(s,1H,C6H);IR(KBr),v(cm-1):3548(O-H),3258(N-H),2959,2869(CH2),1466(C=C),1321,1146(S=O)。
按照上述的方法合成得到其它N-(2,4,5-三氯苯基)-2-羟基环己、庚、辛、十二烷基磺酰胺B2~B4。化合物的理化数据见表3,波普数据见表4。
表3化合物B2~B4的理化性质和收率
表4化合物B2~B4的核磁共振氢谱(1H NMR)和红外光谱(IR)数据
实例4.N-(2,4,5-三氯苯基)-2-苯酰氧基环己烷基磺酰胺C1的制备
室温下将干燥的20mL二氯甲烷、0.90g(2.5mmol)N-(2,4,5-三氯苯基)-2-羟基环己烷基磺酰胺B2、干燥的0.23mL N,N,N’,N’-四甲基乙二胺(TMEDA)、2g 4A型分子筛先后加入到50mL的三口瓶中,搅拌下缓慢加入0.39g(2.8mmol)苯甲酰氯,在25-30℃,搅拌反应4h。向反应液中加入20mL二氯甲烷,抽滤,滤液迅速用冰水20mL洗涤一次,用无水硫酸钠干燥30min。抽滤,减压浓缩,得白色固体,用石油醚和乙酸乙醋(8∶1)为展开剂,柱层析得到1.02g白色固体。收率:88%;熔点:179-181℃;1HNMR(CDCl3,300MHz),δ(ppm):1.41-2.27(m,8H,4CH2),3.22-3.28(m,1H,CH-O),5.83(s,1H,CH-SO2),7.39-8.07(m,8H,C6H2+C6H5+NH);IR(KBr),v(cm-1):3236(N-H),2946,2859(CH2),1761(C=O)。
按照上述方法制备得到其它的2-酰氧基环己烷基磺酰胺C2-C13。目标物的理化数据见表5,波谱数据见表6。
表5化合物C1-C13的物化性质和收率
表6化合物C1~C13的核磁共振氢谱(1H NMR)和红外光谱(IR)数据
实例5.化合物A、B、C的杀菌活性
参照文献(农业部农药检定所,2008)的方法,将样品化合物分别配置成浓度为5000、2500、1250、625与312.5mg/L的药液。无菌状态下,取0.36mL的浓度为5000mg/L的药剂与36mL融化(60±5℃)的PDA培养基混合均匀,制成浓度为50mg/L的含毒培养基36mL,然后均匀的将36mL的含毒培养基均匀的倒入3个直径为9cm的培养皿中,每皿12mL。依次类推,配制浓度为50、25、12.5、6.25与3.125mg/L共五个梯度的含毒培养基。
采用腐霉利与百菌清为对照药剂,设置丙酮溶剂为空白对照,重复三次。待皿中含毒培养基冷凝后,分别接入培养好的直径为0.6cm的病原菌菌块。置于28℃培养箱中培养。待其空白对照中的菌落充分生长后,以十字交叉法测量各处理的菌落直径,取其平均值。以校正后的空白对照和处理的菌落平均直径计算抑制率,公式如下:
抑制率/%=(空白对照菌落直径-含毒介质菌落直径)/(空白对照菌落直径-菌饼直径)×100
将抑制生长率换算成机率值,取药剂浓度的对数值,利用EXCEL软件按照文献(刘霞,等,2009)的统计方法计算EC50,EC80,EC90值,比较药剂毒力大小。
化合物A1~A5和B1~B4对10种病原菌的杀菌活性结果见表7,对灰霉病菌的毒力测定结果见表8。9个化合物对所有的病原真菌都表现出了很高的杀菌活性,尤其对番茄灰霉和油菜菌核的活性突出,化合物A3和A4对灰霉病菌的活性好于对照药剂腐霉利。
表7化合物A1~A5和B1~B4对10种病原菌的抑制率(50mg/L,/%)
表8化合物A1~A5和B1~B4对灰霉病菌的毒力
化合物编号 | 毒力回归方程 | r | EC50(mg/L) | EC90(mg/L) |
A1 | y=2.4992x+2.6015 | 0.9220 | 9.11 | 29.64 |
A2 | y=1.7765x+4.6539 | 0.9737 | 1.57 | 8.23 |
A3 | y=1.5708x+5.2210 | 0.9930 | 0.72 | 4.72 |
A4 | y=1.3066x+5.2512 | 0.9654 | 0.64 | 6.13 |
A5 | y=0.6613x+4.3328 | 0.9960 | 10.21 | 880.04 |
B1 | y=1.2521x+4.4793 | 0.9607 | 2.61 | 27.42 |
B2 | y=1.7715x+4.1702 | 0.9940 | 2.94 | 15.52 |
B3 | y=1.7901x+4.4710 | 0.9923 | 1.97 | 10.25 |
B4 | y=1.0012x+4.8206 | 0.9970 | 1.51 | 28.68 |
腐霉利 | y=1.7650x+5.0103 | 0.9980 | 0.99 | 5.24 |
化合物C1~C13对10种病原菌的杀菌活性结果见表9,对灰霉病菌的毒力测定结果见表10。其中化合物C9、C12、C13对所有的病原真菌都表现出了很高的杀菌活性,并且对灰霉病菌的活性高于对照药剂腐霉利。
表9化合物C1~C13对10种病原真菌的抑制率(50mg/L,/%)
表10化合物C1~C13对对灰霉病菌的毒力
实例6.化合物A、B、C的除草活性测定
参照农药室内生物测定试验准则(农业部农药检定所,2008),将新化合物配制成浓度为1000μg/mL的丙酮溶液,吸取1mL药液加入铺有滤纸的10cm培养皿中,待丙酮挥发干后,加入10mL 0.1%吐温80水溶液,稀释得到100μg/mL的水溶液,然后将刚刚萌发的种子整齐地排列在培养皿中,放在23~26℃的环境中培养,以0.1%吐温80水溶液为空白对照,每处理3个重复。3~6天后,分别测量反枝苋的胚轴长度,稗草的芽长,计算除草活性,公式如下:
抑制率/%=(空白对照长度-处理长度)/空白对照长度×100
实验结果见表11。化合物A、B、C能够抑制反枝苋和稗草胚轴的生长,有7个化合物对反枝苋的抑制活性达到了70%以上,有1个化合物对稗草的抑制率超过了70%。
表11化合物A、B、C的除草活性(100μg/mL)
化合物编号 | 反枝苋/% | 稗草/% |
A1 | 42 | 54 |
A2 | 78 | 65 |
A3 | 77 | 59 |
A4 | 77 | 74 |
A5 | 17 | 15 |
B1 | 78 | 49 |
B2 | 65 | 39 |
B3 | 51 | 39 |
B4 | 61 | 40 |
C1 | 33 | 21 |
C2 | 20 | 14 |
C3 | 19 | 18 |
C4 | 25 | 19 |
C5 | 43 | 21 |
C6 | 29 | 30 |
C7 | 71 | 19 |
C8 | 24 | 28 |
C9 | 76 | 41 |
C10 | 10 | 10 |
C11 | 56 | 58 |
C12 | 68 | 51 |
C13 | 73 | 46 |
Claims (4)
3.如权利要求1所述环烷基磺酰胺系列化合物作为农用杀菌剂的用途,其特征是用于棉花炭疽、小麦赤霉、番茄早疫、黄瓜褐斑、番茄灰霉、玉米小斑、核盘菌、玉米弯孢和苹果轮纹等病害的防治。
4.如权利要求1所述环烷基磺酰胺系列化合物作为农用除草剂的用途,其特征是用于单子叶和双子叶杂草防治。
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CN105669541A (zh) * | 2016-01-11 | 2016-06-15 | 沈阳农业大学 | 2-酰胺基环烷基磺酰胺化合物及制备方法和作为杀菌、除草剂的用途 |
CN105906535A (zh) * | 2016-05-16 | 2016-08-31 | 沈阳农业大学 | 保护农作物免受除草剂药害的安全剂、组合剂及使用方法 |
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CN107337620A (zh) * | 2017-05-23 | 2017-11-10 | 沈阳农业大学 | 2‑酰胺基乙磺酰胺化合物、制备方法和作为杀菌剂、除草剂的用途 |
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CN113563237A (zh) * | 2021-07-29 | 2021-10-29 | 沈阳农业大学 | 2-甲氧氨基-4-取代环己烷基磺酰胺化合物及其制备方法应用 |
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CN105669541A (zh) * | 2016-01-11 | 2016-06-15 | 沈阳农业大学 | 2-酰胺基环烷基磺酰胺化合物及制备方法和作为杀菌、除草剂的用途 |
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CN114685398A (zh) * | 2022-05-16 | 2022-07-01 | 沈阳农业大学 | 一种环己烷并噻二嗪化合物及其制备方法与应用 |
CN114685398B (zh) * | 2022-05-16 | 2023-04-18 | 沈阳农业大学 | 一种环己烷并噻二嗪化合物及其制备方法与应用 |
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