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    • 4. 发明公开
    • 광학 활성 비닐치환 시클로프로판카르복실산 화합물의라세미화 방법
    • 光学活性乙烯基取代的环丙烷羧酸化合物的研究方法
    • KR1020030009153A
    • 2003-01-29
    • KR1020020041150
    • 2002-07-15
    • 스미또모 가가꾸 가부시끼가이샤
    • 소우다히로시이와꾸라가즈노리고또후미사또
    • C07B55/00
    • C07C51/353C07C67/333C07C61/37C07C61/35C07C61/40C07C69/747C07C69/743
    • PURPOSE: A method for racemizing an optical active vinyl-substituted cyclopropanecarboxylic acid compound is provided, to allow the compound to be racemized effectively by the industrially applicable process. CONSTITUTION: The method comprises the step of reacting an optical active vinyl-substituted cyclopropanecarboxylic acid compound of the formula 1, a nitric acid compound and nitrogen oxide, wherein R1, R2, R3 and R4 are independently H, a halogen atom, a substituted or unsubstituted alkyl group of C1-C4, a substituted or unsubstituted aryl group or a substituted or unsubstituted alkoxycarbonyl group; R1 and R2 form a substituted or unsubstituted alkylene group together; and X is OH, a halogen atom, a substituted or unsubstituted alkoxy group of C1-C20 or a substituted or unsubstituted aryloxy group. Preferably the nitric acid compound is nitric acid or a mixture of nitric acid and nitrates; and the nitrogen oxide is nitrous oxide (N2O).
    • 目的:提供光学活性乙烯基取代的环丙烷羧酸化合物外消旋化的方法,通过工业上适用的方法使化合物有效地外消旋化。 方案:该方法包括使式1的光学活性乙烯基取代的环丙烷羧酸化合物,硝酸化合物和氮氧化物反应的步骤,其中R 1,R 2,R 3和R 4独立地为H,卤素原子,取代或 未取代的C1-C4烷基,取代或未取代的芳基或取代或未取代的烷氧基羰基; R1和R2一起形成取代或未取代的亚烷基; X为OH,卤素原子,取代或未取代的C 1 -C 20的烷氧基或取代或未取代的芳氧基。 优选地,硝酸化合物是硝酸或硝酸和硝酸盐的混合物; 氮氧化物为一氧化二氮(N2O)。
    • 6. 发明授权
    • 싸이클로프로판에스테르의제조방법
    • KR100374688B1
    • 2003-05-17
    • KR1019970702329
    • 1995-11-02
    • 신젠타 리미티드
    • 보우든마틴찰스브라운스테펀마틴
    • C07C69/743C07C67/317C07C67/333
    • C07C69/743
    • PCT No. PCT/GB95/02570 Sec. 371 Date Jan. 31, 1997 Sec. 102(e) Date Jan. 31, 1997 PCT Filed Nov. 2, 1995 PCT Pub. No. WO96/16018 PCT Pub. Date May 30, 1996The invention provides an improved process for the preparation of a lower alkyl ester of 3-(2-chloro-3,3,3-trifluoroprop-1-en-1-yl)-2,2-dimethylcyclopropane carboxylic acid in which the corresponding lower alkyl ester of a carboxylic acid selected from 6-bromo-6-chloro-3,3-dimethyl-7,7,7-trifluorohept-2-enoic acid and 6,6-dichloro-3,3-dimethyl-7,7,7-trifluorohept-2-enoic acid is treated with an alkali metal lower alkoxylate in the presence of an aromatic hydrocarbon solvent under conditions under which the lower alcohol of the alkoxylate is removed from the reaction mixture by distillation with the aromatic solvent. The products are useful as intermediates in the manufacture of pyrethroid insecticides.
    • PCT No.PCT / GB95 / 02570 Sec。 371日期1997年1月31日Sec。 102(e)日期1997年1月31日PCT申请日1995年11月2日PCT Pub。 WO96 / 16018 PCT Pub。 日期1996年5月30日本发明提供了制备3-(2-氯-3,3,3-三氟丙-1-烯-1-基)-2,2-二甲基环丙烷羧酸的低级烷基酯 其中相应的选自6-溴-6-氯-3,3-二甲基-7,7,7-三氟庚-2-烯酸和6,6-二氯-3,3-二甲基丁酸的羧酸的低级烷基酯, 在芳族烃溶剂存在下,在碱金属低级烷氧基化物的存在下,在烷氧基化物的低级醇通过蒸馏与反应混合物一起从反应混合物中除去的条件下,将二甲基-7,7,7-三氟庚-2-烯酸 芳香族溶剂。 该产品可用作拟除虫菊酯杀虫剂生产的中间体。
    • 7. 发明公开
    • 거울상 이성질체적으로 순수한 피레트로이드 살충제 제조방법
    • 거울상이성질체적으로순수한피레드살충제제조방거울
    • KR1020030017639A
    • 2003-03-03
    • KR1020037000695
    • 2001-07-16
    • 신젠타 리미티드
    • 브라운,스테픈,마틴고트,브리안,다비드
    • C07C51/41
    • C07C51/60C07B2200/07C07C51/09C07C51/412C07C61/15C07C67/14C07C61/40C07C53/21C07C53/50C07C69/743
    • 본 발명은, 식 (VIIa) 및 (VIIb)의 화합물 [식 중, X는 이탈기이고; Y 및 Y
      1 는 독립적으로 염소, 브롬이고; Z 는 염소, 브롬 또는 할로알킬 그룹임]을 제조하는 방법으로서, a) 식 (VII)의 화합물 [식 중, X, Y, Y
      1 , 및 Z 는 상기 식 (VIIa) 및 식 (VIIb)에 대하여 정의된 바와 같음]을 실질적으로는 광학적으로 순수한 키랄 아민과 용매 내에서 반응시켜 부분 입체 이성질체 염을 형성하는 단계; b) 상기 부분 입체 이성질체 염의 각각의 거울상 이성질체를 분리하는 단계; c) 상기 부분 입체 이성질체 염의 각각의 거울상 이성질체를 산 가수분해 또는 염기 가수분해에 의하여 식 (VIIa) 및 식 (VIIb)의 화합물로 전환시키는 단계로 이루어지는 방법, 피레트로이드 살충제 제조에 있어서 상기 화합물의 용도 및 신규한 중간 생성물에 관한다.
    • 生产式(Ⅶa)和(Ⅶb)化合物的方法,其中X是离去基团; Y和Y 1独立地是Cl或Br; (VII)的化合物其中X,Y,Y 1和Z如化合物(VIIa)和(VIIb)中所定义)和基本上与式(VII)化合物反应的Z是Cl,Br或卤代烷基, 光学纯的手性胺在溶剂中反应以形成非对映异构体盐; b)分离每种对映体的非对映异构体盐; c)分别通过酸或碱水解将每种对映异构体的非对映体盐分别转化为式(VIIa)和(VIIb)化合物,该化合物用于制备拟除虫菊酯杀虫剂和新中间体。
    • 8. 发明公开
    • 시클로프로판카르복실레이트의 제조 방법
    • 环丙基羧酸的制备方法
    • KR1020020034949A
    • 2002-05-09
    • KR1020010067707
    • 2001-10-31
    • 스미또모 가가꾸 가부시끼가이샤
    • 이와꾸라가즈노리소우다히로시다까가끼도헤이야마다요시미
    • C07C67/00
    • C07C67/03C07C69/743
    • PURPOSE: A method for preparing a cyclopropanecarboxylate is provided, to obtain the cyclopropanecarboxylate represented by the formula 1 industrially without by-products and coloration. CONSTITUTION: The method comprises the step of contacting the cyclopropanecarboxylate of the formula 2 with the monohydroxy compound represented by R7OH in the presence of the lithium compound represented by R8OLi, to obtain the cyclopropanecarboxylate of the formula 1, wherein R1, R2, R3, R4 and R5 are independent each another and are H, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted aryl group; R6 is an alkyl group of C1-C10 or a substituted or unsubstituted phenyl group; R7 and R8 are not simultaneously the same and independent each other and are a substituted or unsubstituted alkyl group or a substituted or unsubstituted aryl group.
    • 目的:提供制备环丙烷羧酸酯的方法,得到在工业上没有副产物和着色的式1所示的环丙烷羧酸酯。 构成:该方法包括使式2的环丙烷羧酸酯与由R7OH表示的单羟基化合物在由R8OLi表示的锂化合物存在下接触的步骤,得到式1的环丙烷羧酸酯,其中R1,R2,R3,R4 和R 5彼此独立,为H,卤素原子,取代或未取代的烷基,取代或未取代的烯基或取代或未取代的芳基; R6是C1-C10的烷基或取代或未取代的苯基; R 7和R 8不是同时相同且彼此独立,并且是取代或未取代的烷基或取代或未取代的芳基。