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CAS号96-34-4 氯乙酸甲酯 | CAS号105-34-0 氰乙酸甲酯 | CAS号67-56-1 甲醇 | CAS号105-39-5 氯乙酸乙酯 | CAS号105-56-6 氰乙酸乙酯 | CAS号52003-39-1 dimethyl 2-cyan...合成工艺路线路线简述
- 合成目标产物 2-Cyanobutanedioicacid,Dimethylester 主要起始原料 Methyl Chloroacetate And Methyl Cyanoacetate
- (文献来源)合成步骤主要原料 Methyl Chloroacetate 和 Methyl Cyanoacetate
📜氯乙酸甲酯,氰乙酸甲酯置于sodium Methylate体系中,用86%的收率获得产物2-氰基丁二酸二甲酯
参考文献:Schank,Kurt; Lorig,Werner,Liebigs Annalen Der Chemie,1983,# 1,P. 112-136
标题:Schank,Kurt; Lorig,Werner,Liebigs Annalen Der Chemie,1983,# 1,P. 112-136
海关参考信息
- 2905121000-正丙醇
2905399002-1,4-丁二醇
2912110000-甲醛
2912120000-乙醛 - 💡 提示:海关信息按照顺序优先匹配,如需确认的海关信息,请参考相关资料。
- 详情请参考:📖 海关编码查询和海关进出口税则
专利信息
专利号:US-4442298-A
优先权日:1982-08-30
标 题:Chemical synthesis of ethylene/maleic anhydride dimer with phenylethyl end group
发明人:TOU JACOB S; SCHLEPPNIK ALFRED A
权利人:MONSANTO CO
摘要:A phenylethyl substituted dimer of ethylene and maleic anhydride, names 7-phenyloctane-(1,2),(5,6)-dianhydride, is chemically synthesized by n (a) alkylating alkyl 2,4-dihalobutyrate with alkyl 2-cyano-3-phenylbutyrate, n (b) alkylating the resulting halide condensation product with a carboxylate selected from the group consisting of trialkyl ethane-1,1,2-tricarboxylate and dimethyl cyanoethane-1,2-dicarboxylate, n (c) acid hydrolyzing the resulting tetra or pentaester accompanied by decarboxylating, and n (d) dehydrating the resulting tetra-acid to yield the desired phenylethyl substituted dimer of ethylene and maleic anhydride, n wherein the alkyls in the butyrate and carboxylate ester groups each contain from one to about four carbon atoms and halo is selected from the group consisting of bromo, chloro and iodo. n The dimer has anti-tumor and anti-viral properties and can be used in silver halide emulsions.
专利号:GB-2126228-A
优先权日:1982-08-30
标题 :Chemical synthesis of ema dimer with phenylethyl end group
专利号:US-7968584-B2
优先权日:2005-06-15
标 题:Substituted arylpyrazoles
发明人:BILLEN DENIS; BOYLE JESSICA; CRITCHER DOUGLAS JAMES; GETHIN DAVID MORRIS; HALL KIM THOMAS; KYNE GRAHAM MICHAEL
权利人:PFIZER; PFIZER PROD INC
摘要:This invention relates to a range of 1-aryl-4-cyclopropylpyrazoles in which the cyclopropyl ring is substituted at the angular position, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
专利号:WO-2006134459-A1
优先权日:2005-06-15
标题 :Substituted arylpyrazoles
发明人:CRITCHER DOUGLAS JAMES; KYNE GRAHAM MICHAEL
权利人:PFIZER LTD; CRITCHER DOUGLAS JAMES; KYNE GRAHAM MICHAEL
摘要:This invention relates to a range of C4 substituted aryl pyrazoles of Formula (I) including those 1-arylpyrazoles in which the 4-position is substituted with an acyclic substituent, a cycloalkyl ring structure or heterocyclic ring structure and which compounds are optionally further substituted at the position a to the pyrazole ring, and pharmaceutically acceptable salts and solvates thereof, to compositions comprising such compounds, processes to their synthesis and their use as parasiticides.
专利号:US-7803832-B2
优先权日:2004-03-18
标题 :N-(1-arylpyrazol-4L)sulfonamides and their use as parasiticides
发明人:CRITCHER DOUGLAS JAMES; WALSHE NIGEL DEREK ARTHUR; LAURET CHRISTELLE
权利人:PFIZER; PFIZER PROD INC
摘要:The invention relates to a sulfonamide compound of formula (I) or a pharmaceutically, veterinarily or agriculturally acceptable salt or solvate thereof, where the groups R 1 -R 5 are described in the description, to compositions comprising such compounds, processes for their synthesis and their use as parasiticides.