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公开(公告)号：KR100419850B1
公开(公告)日：2004-02-25
申请号：KR1020010060648
申请日：2001-09-28
Applicant: 한국화학연구원
IPC: C08F8/34
Abstract: PURPOSE: A chelate resin for adsorbing specific heavy metal ions and its preparation method are provided, to improve the adsorbing property to specific heavy metal ions by introducing a dithiocarbamic acid group into the main chain and the side chain of a polymer and employing the benzene structure as a spacer, thereby allowing the neighboring dithiocarbamic acid groups to form zigzag structure. CONSTITUTION: The chelate resin is represented by the formula 1, wherein A is H, K or Na. The method comprises the steps of preparing a spherical copolymer represented by the formula 2 by suspension polymerization of styrene and methyl methacrylate using a divinylbenzene as a crosslinking agent; reacting the copolymer of the formula 2 with boron hydride, zinc chloride and N,N'-dimethylaniline to convert a carboxyl ester group into a hydroxymethyl group (-CH2OH), and reacting the obtained one with pyridine and thionyl chloride to convert the hydroxymethyl group into a chloromethyl group and to prepare the chloromethyl group-containing copolymer represented by the formula 3; reacting the copolymer of the formula 3 with zinc chloride and chloromethyl methylether to introduce a chloromethyl group to a phenyl ring and to prepare the copolymer which contains two chloromethyl groups bonded to different positions and is represented by the formula 4; reacting the copolymer of the formula 4 with methyl amine to prepare the aminated copolymer represented by the formula 5; and reacting the copolymer of the formula 5 with carbon disulfide to introduce a dithiocarbamic acid group and neutralizing the obtained one.
Abstract translation: 目的：提供一种用于吸附特定重金属离子的螯合树脂及其制备方法，以通过将二硫代氨基甲酸基团引入聚合物的主链和侧链中并利用苯结构来提高对特定重金属离子的吸附性能 作为间隔物，由此使相邻的二硫代氨基甲酸基团形成之字形结构。 构成：螯合树脂由式1表示，其中A是H，K或Na。 该方法包括以下步骤：使用二乙烯基苯作为交联剂通过苯乙烯和甲基丙烯酸甲酯的悬浮聚合制备式2表示的球形共聚物; 使式2的共聚物与氢化硼，氯化锌和N，N'-二甲基苯胺反应以将羧基酯基转化成羟甲基（-CH 2 OH），并将所得的产物与吡啶和亚硫酰氯反应以将羟甲基 转化为氯甲基并制备式3表示的含氯甲基的共聚物; 使式3的共聚物与氯化锌和氯甲基甲基醚反应以将氯甲基引入苯环并制备含有两个键合到不同位置的氯甲基的共聚物并由式4表示; 使式4的共聚物与甲基胺反应以制备式5所示的胺化共聚物; 并使式5的共聚物与二硫化碳反应以引入二硫代氨基甲酸基团并中和得到的二硫代氨基甲酸基团。
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公开(公告)号：KR100392072B1
公开(公告)日：2003-07-22
申请号：KR1020000052917
申请日：2000-09-07
Applicant: 한국화학연구원
IPC: A01N43/80
CPC classification number: A01N43/80
Abstract: The present invention provided with novel 5-benzyloxymethyl-1,2-isoxazoline derivatives of the formula (1), their preparation method and their use as herbicides. The 5-benzyloxymethyl-1,2-isoxazoline derivatives according to the present invention have sufficiently high herbicidal activity against the weeds in the paddy field rice even at low dose rates and excellent selectivity to transferred rice in particular. As thus, the compounds of the present invention are typically useful as herbicides for control of paddy weeds in rice.
Abstract translation: 本发明提供了式（1）的新型5-苄氧基甲基-1,2-异恶唑啉衍生物及其制备方法和它们作为除草剂的用途。 即使在低剂量率下，本发明的5-苄氧基甲基-1,2-异恶唑啉衍生物对稻田杂草具有足够高的除草活性，特别是对转移的稻米具有优异的选择性。 因此，本发明的化合物通常可用作除草剂以控制稻中的稻田杂草。
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公开(公告)号：KR1020030034286A
公开(公告)日：2003-05-09
申请号：KR1020010060649
申请日：2001-09-28
Applicant: 한국화학연구원
IPC: C08F8/36
Abstract: PURPOSE: A chelate resin for adsorbing specific heavy metal ions and its preparation method are provided, to improve the adsorbing property to specific heavy metal ions by introducing a sulfonyl dithiocarbamic acid group into the phenyl ring of a spherical polystyrene as a chelate functional group and thereby improving the hydrophilicity and the coordinating property. CONSTITUTION: The chelate resin is represented by the formula 1, wherein A is H, K or Na. The method comprises the steps of preparing a spherical polystyrene by suspension polymerization of styrene using a divinylbenzene as a crosslinking agent, and reacting the spherical polystyrene with chlorosulfonic acid to obtain the chlorosulfonated copolymer represented by the formula 2; aminating the copolymer of the formula 2 by using liquid ammonia to prepare the sulfonamide group-containing copolymer represented by the formula 3; and reacting the copolymer of the formula 3 with carbon disulfide to introduce a dithiocarboxylic group into the copolymer and neutralizing the obtained one.
Abstract translation: 目的：提供一种用于吸附特定重金属离子的螯合树脂及其制备方法，通过将磺酰基二硫代氨基甲酸基团引入球形聚苯乙烯的苯环作为螯合官能团，从而提高对特定重金属离子的吸附性能，从而 提高亲水性和配位性。 构成：螯合树脂由式1表示，其中A是H，K或Na。 该方法包括通过使用二乙烯基苯作为交联剂的苯乙烯的悬浮聚合制备球形聚苯乙烯并使球形聚苯乙烯与氯磺酸反应得到由式2表示的氯磺化共聚物的步骤; 通过使用液氨氨化式2的共聚物以制备由式3表示的含磺酰胺基的共聚物; 并使式3的共聚物与二硫化碳反应，将二硫代羧基引入共聚物中并中和所得的二硫代羧酸。
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公开(公告)号：KR1020000059735A
公开(公告)日：2000-10-05
申请号：KR1019990007558
申请日：1999-03-08
Applicant: 한국화학연구원
IPC: C07D413/12
Abstract: PURPOSE: A N-(5-isoxazolinylmethyloxyphenyl)-dimethylmaleimide derivative is provided which has excellent stability against a rice plant and shows good herbicidal activity on weeds in a paddy like echor, scpju, moova, cypse, sagpy or so on. CONSTITUTION: The N-(5-isoxazolinylmethyloxyphenyl)-dimethylmaleimide derivative is shown in a chemical formula 1 wherein R is alkyl radical with 1-5 carbon number, phenyl radical or substituted phenyl radical, cyano radical, carboxylic acid or carboxylic ester, heterocyclic or substituted heterocyclic radical. The substituted phenyl radical or substituted heterocyclic radical is simply or mixedly substituted from 1-3 radicals among alkyl radical with 1-3 carbon number, alkoxy radial with 1-3 carbon number, halogen atom, cyano radical, nitro radical, carboxyl radical and carboxylic ester.
Abstract translation: 目的：提供一种对水稻植株具有优异稳定性的N-（5-异恶唑啉基甲氧基苯基） - 二甲基马来酰亚胺衍生物，对水稻，scpju，moova，cypse，sagpy等中的杂草具有良好的除草活性。 组成：N-（5-异恶唑啉基甲氧基苯基） - 二甲基马来酰亚胺衍生物以化学式1表示，其中R是具有1-5个碳数的烷基，苯基或取代的苯基，氰基，羧酸或羧酸酯，杂环或 取代的杂环基。 取代的苯基或取代的杂环基团在具有1-3个碳原子的烷基，具有1-3个碳数的烷氧基，卤素原子，氰基，硝基，羧基和羧基的烷基中简单或混合取代1-3个基团 酯。
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公开(公告)号：KR100250838B1
公开(公告)日：2000-05-01
申请号：KR1019970065411
申请日：1997-12-02
Applicant: 한국화학연구원
IPC: C07D307/08
Abstract: PURPOSE: Provided is a preparation method of 3(-(hydroxymethyl)tetrahydrofuran) represented by the formula (1) which is used as an intermediate raw material of drugs and insecticide. Thereby the compound is simply and easily prepared compared to the conventional methods. CONSTITUTION: (3-(hydroxymethyl)tetrahydrofuran) of the formula (1) is prepared by cyclization reaction of 2-hydroxymethyl-4-alkene-1-ol derivative of the formula (2) in the presence of I2 catalyst in organic solvent, wherein R1, R2 and R3 are C1-C4 alkyl or phenyl selected from the group consisting of hydrogen, methyl, ethyl, n-propyl, i-propyl, n-butyl, i-butyl and t-butyl, respectively.
Abstract translation: 目的：提供用作药物和杀虫剂的中间体原料的由式（1）表示的3（ - （羟甲基）四氢呋喃）的制备方法。 因此，与常规方法相比，化合物简单且容易地制备。 组成：通式（2）的2-羟甲基-4-烯-1-醇衍生物在有机溶剂中存在的I2催化剂的环化反应制备式（1）的（3-（羟甲基）四氢呋喃） 其中R1，R2和R3分别是C1-C4烷基或选自氢，甲基，乙基，正丙基，异丙基，正丁基，异丁基和叔丁基的苯基。
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Patent Agency Ranking
公开(公告)号：KR100128544B1
公开(公告)日：1998-04-04
申请号：KR1019940016984
申请日：1994-07-14
Applicant: 한국화학연구원
IPC: C07D209/32 , C07D209/42
Abstract: Title derivatives(I; R1, R2= same or not, H, fluro, chlorro, bromo, C1-3 alkyl, C1-3 alkoxy; R1 and R2 are formed a fused ring such as -CH=CH-CH=CH-; R3= H, C1-4 alkyl, C3-6 alkenyl, etc.), useful as herbicides were prepared. Thus, 3.03 g 4-fluorophenol was reacted with 1.9 ml ethyl chloride, followed by addition of 4.0 g anhydrous aluminium chloride at 180 deg.C for 30 minutes to give 2.71 g 2-hydroxy-5-fluoroacetophenone(III). III and 1.05 g ethyl carbamate were refluxed for 20- 30 hours in 50 ml n-propanol to give ethoxycarbonylhydrazone derivatives IV. 2.41 g IV was dissolved in 100 ml tetrahydrofuran, adding 4.44 g (CH3COO)4Pb as an oxidation agent at room temperature for 3- 5 hours to give ethyl 0-acetylarylcarboxylate derivatives(V). 2.1 g V and 0.83 g 4-chloro-2-fluoro-5-hydroxyaniline were refluxed for 20- 30 hours in a mixed solvent of 50 ml o-dichlorobenzene and acetic acid to give 2,3-dihydro-3-methylene- 2-(4-chloro-2-fluoro-3-hydroxyphenyl)-1H-isoindol-1-one(VII). VII was refluxed for 20 hours to give 2,3-dihydro-3-methylene-2- (3-propagyloxy-4-chloro-2-fluorophenyl)-1H-isoindol-1-one(I).
Abstract translation: 标题衍生物（I; R1，R2 =相同或不同，H，氟，氯，溴，C1-3烷基，C1-3烷氧基; R1和R2形成稠环，例如-CH = CH-CH = CH- ; R3 = H，C1-4烷基，C3-6烯基等），可用作除草剂。 因此，将3.03g 4-氟苯酚与1.9ml氯乙烷反应，然后在180℃下加入4.0g无水氯化铝30分钟，得到2.71g 2-羟基-5-氟苯乙酮（III）。 III和1.05g氨基甲酸乙酯在50ml正丙醇中回流20-30小时，得到乙氧基羰基腙衍生物IV。 将2.41g IV溶解在100ml四氢呋喃中，在室温下加入4.44g（CH3COO）4Pb作为氧化剂，持续3-5小时，得到O-乙酰基芳基羧酸乙酯衍生物（V）。 将2.1g V和0.83g 4-氯-2-氟-5-羟基苯胺在50ml邻二氯苯和乙酸的混合溶剂中回流20-30小时，得到2,3-二氢-3-亚甲基-2 - （4-氯-2-氟-3-羟基苯基）-1H-异吲哚-1-酮（VII）。 VII的混合物回流20小时，得到2,3-二氢-3-亚甲基-2-（3-羰基氧基-4-氯-2-氟苯基）-1H-异吲哚-1-酮（I）。
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公开(公告)号：KR1019960022496A
公开(公告)日：1996-07-18
申请号：KR1019940037131
申请日：1994-12-27
Applicant: 한국화학연구원
IPC: C07D307/79
Abstract: 본 발명은 농약 및 의약의 중간체로 유용한 다음 구조식(Ⅰ)로 표시되는 2,3-디히드로-2-메틸-2-알킬 벤조퓨란 유도체의 제조방법에 관한 것이다.
상기 식에서, X는 수소원자, 할로겐원자, 히드록시기, 알데히드기 또는 C
1 ∼C
6 의 알킬기이고, R은 C
1 ∼C
6 의 알킬이다.-
公开(公告)号：KR1019960007549A
公开(公告)日：1996-03-22
申请号：KR1019940020420
申请日：1994-08-18
Applicant: 한국화학연구원
IPC: C07C251/44 , A01N35/10 , C07C47/546 , C07C49/723 , C07C251/42
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公开(公告)号：KR101190716B1
公开(公告)日：2012-10-12
申请号：KR1020100042020
申请日：2010-05-04
Applicant: 한국화학연구원
Abstract: 본 발명은 탄소나노볼에 팔라듐을 담지한 불균일 촉매 및 상기 촉매하에서 아세틸렌 가스와 다양한 아릴 할라이드(aryl halide)를 반응시켜 단 한 단계에 산업적으로 유용성이 높은 디아릴아세틸렌 화합물들을 높은 수율로 제조하는 방법에 관한 것으로, 본 발명에 따른 팔라듐을 담지한 탄소나노볼 불균일 촉매는 회수하여 반복 사용할 수 있어 디아릴아세틸렌 화합물의 대량생산이 가능하며, 반응을 한 단계만으로 끝낼 수 있어 기존의 수율 감소 문제를 해결할 수 있다.
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