PRODUCTION OF DIARYL IODONIUM HYDROGEN SULFATE

    公开(公告)号:JPS635040A

    公开(公告)日:1988-01-11

    申请号:JP14830086

    申请日:1986-06-26

    Abstract: PURPOSE:To obtain the titled substance useful as an intermediate for the synthesis of an aromatic compound having a functional group such as halogen atom, amino group, etc., at a low cost, by using easily available aromatic compound and aromatic iodide as raw materials and reacting with a specific amount of concentrated sulfuric acid in the presence of an oxidization agent. CONSTITUTION:The objective compound of formula III can be produced by reacting (A) an aromatic iodide of formula I (R is alkyl, halogen, nitro, alkoxy or acylamino; m is 0 or 1-5; when m>=2, the R substituent groups are independently selected) with (B) an aromatic compound of formula II (R is alkyl, halogen, nitro, alkoxy or acylamino; n is 0 or 1-5; when n>=2, the R substituent groups are independently selected) and (C) 1-10 equivalent of concentrated sulfuric acid based on the component of formula I in the presence of (D) an oxidization agent such as potassium persulfate, preferably using a solvent containing acetic acid as a diluent at -20-+100 deg.C.

    Production of arylpyruvic acid
    62.
    发明专利
    Production of arylpyruvic acid 失效
    生产ARYLPYRUVIC酸

    公开(公告)号:JPS62116541A

    公开(公告)日:1987-05-28

    申请号:JP25663485

    申请日:1985-11-18

    CPC classification number: Y02P20/52

    Abstract: PURPOSE: The reaction of an arylmethyl halide with carbon monoxide is carried out in the coexistence of a nitrogen-containing compound, in the presence of a specific catalyst and compound, under moderate pressure of carbon monoxide for a short time to give the titled compound in high selectivity and yield.
    CONSTITUTION: An arylmethyl halide of formula I (Ar is aryl; X is halogen) is allowed to react with carbon monoxide and water in an organic solvent such as a branched alcohol of 3W10 carbon atoms, in the presence of cobalt carbonyl, a nitrogen compound such as a quaternary ammonium compound such as triethylbenzylammonium chloride, tertiary amine or amide as catalysts, further in the presence of an inorganic base of alkaline earth metal, preferably at 35W70°C as the partial pressure of carbon monoxide is kept near normal pressure, to give the objective compound.
    EFFECT: The process according to the present invention does not require pressure units and the reactions ends in a short time, thus it is very advantageous in efficiency, when it is produced on an industrial scale.
    COPYRIGHT: (C)1987,JPO&Japio

    Abstract translation: 目的:芳基甲基卤化物与一氧化碳的反应在含有化合物的情况下,在特定催化剂和化合物的存在下,在中等压力的一氧化碳下短时间内进行,得到标题化合物 高选择性和产率。 构成:在羰基钴存在下,使式I的芳基甲基卤(Ar是芳基; X是卤素)与一氧化碳和水在有机溶剂例如3-10个碳原子的支链醇中反应, 氮化合物如季铵化合物如三乙基苄基氯化铵,叔胺或酰胺作为催化剂,进一步在碱土金属的无机碱存在下,优选在35-70℃下保持一氧化碳的分压 接近正常压力,给出目标化合物。 效果:根据本发明的方法不需要压力单位,并且反应在短时间内结束,因此当其以工业规模生产时,其效率非常有利。

    3-methylbutyric esters
    64.
    发明专利
    3-methylbutyric esters 失效
    3-甲基丁酸酯

    公开(公告)号:JPS6187644A

    公开(公告)日:1986-05-06

    申请号:JP20989384

    申请日:1984-10-08

    Abstract: NEW MATERIAL:Compds. expressed by formula I [R is lower alkyl, R
    1 is formula II (R
    2 =R), formula III or formul IV (R
    3 s are R or together form alkylene or polymethylene group)].
    EXAMPLE: Methyl 5,5-dimethoxy-3,3-dimethylpentanoate.
    USE: A raw material for 5-oxo-3,3-dimethylpentanoic esters useful as a starting material for insecticides such as permethrin.
    PREPARATION: A 3,3-dimethyl-4-pentanoic ester expressed by formula V, and carboxylic acid expressed by the formula R
    2 COOH such as acetic acid are reacted in the presence of oxygene and a Pd catalyst such as palladium acetate, at room temp. W 150°C, to form compds. expressed by formula I (R
    1 is formulas II and III). The resultant products are reacted with an alcohol expressed by the formula R
    3 OH such as methanol in the presence of an acetalizing catalyst such as p-toluenesulfonic acid at room temp. W 100°C to obtain the compd. expressed by formula I (R
    1 is formula IV).
    COPYRIGHT: (C)1986,JPO&Japio

    Abstract translation: 新材料:Compds 由式I表示[R是低级烷基,R 1是式II(R 2 = R),式III或式IV(R 3是R或一起形成亚烷基或多亚甲基)]。 实施例:5,5-二甲氧基-3,3-二甲基戊酸甲酯。 用途:5-氧代-3,3-二甲基戊酸酯的原料,可用作杀虫剂如苄氯菊酯的起始原料。 制备:由式V表示的3,3-二甲基-4-戊酸酯和由式R 2 COOH如乙酸表示的羧酸在氧基和Pd催化剂如乙酸钯, 在室温 - 150摄氏度,形成compds。 由式I表示(R 1是式II和III)。 在室温下,在缩醛催化剂如对甲苯磺酸的存在下,使所得产物与式R 3 OH表示的醇如甲醇反应。 - 100℃以获得化合物 由式I表示(R 1是式IV)。

    PREPARATION OF FLUORINE-CONTAINED COPOLYMER

    公开(公告)号:JPS60248713A

    公开(公告)日:1985-12-09

    申请号:JP10365784

    申请日:1984-05-24

    Abstract: PURPOSE:To obtain a fluorine-contained copolymer useful as a water repellent or an oil repellent, or a resist material, etc. in high yield, by copolymerizing a specific fluorine-containing methacrylic acid ester with a styrenic monomer in the presence of a radical polymerization initiator. CONSTITUTION:(A) A fluorine-containing methacrylic acid ester shown by the formula I (R is alkyl group of hydrocarbon of fluorine) is copolymerized with (B) a styrenic monomer shown by the formula II (X is H, hydrocarbon alkyl, halogen, vinyl, amino, or hydroxyl group) in the presence of (C) a radical polymerization initiator, to give the aimed copolymer. A compound wherein R is CnH2n+1 (n is integer) or group shown by the formula III (m is 0-5 integer; Rf is 1-20C polyfluoroalkyl; R is lower alkyl, H, or Rf) is preferable as the component A.

    Production of 5-fluorouracil derivative
    66.
    发明专利
    Production of 5-fluorouracil derivative 失效
    生产5-氟尿嘧啶衍生物

    公开(公告)号:JPS60190768A

    公开(公告)日:1985-09-28

    申请号:JP4377884

    申请日:1984-03-09

    Abstract: PURPOSE: Readily available 5-fluoro-6-halouracil is used as a starting material to give the titled compound used as an antitumor agent only by reduction through simple and safe process.
    CONSTITUTION: For example, a fluorobarbituric acid derivative is allowed to react with a halogenation agent such as phosphorus oxychloride to readily give 5-fluoro-6-halouracil derivative of furmula I (X is Cl, B, I; R
    1 , R
    2 are H, alkyl, aralkyo, aryl or oxygen-containing heterocyclic ring) such as 5-fluoro-6-chlorouracil. Then the product is reduced with hydrogen in the presence of a transition metal catalyst and a base to give 5-fluorouracil derivative of formula II such as 5-fluorouracil.
    COPYRIGHT: (C)1985,JPO&Japio

    Abstract translation: 目的:使用5-氟-6-氟尿嘧啶作为起始原料,仅通过简单安全的方法制备用作抗肿瘤剂的标题化合物。 构成:例如,使氟巴比妥酸衍生物与卤化剂如三氯氧化磷反应容易地得到糠醛I的5-氟-6-卤尿嘧啶衍生物(X是Cl,B,I; R 1,R 2是H,烷基,芳烷基,芳基或含氧杂环)如5-氟-6-氯尿嘧啶。 然后在过渡金属催化剂和碱的存在下用氢还原产物,得到式II的5-氟尿嘧啶衍生物如5-氟尿嘧啶。

    PRODUCTION OF 5-PERFLUOROALKYLDIHYDROURACIL COMPOUND

    公开(公告)号:JPS6019771A

    公开(公告)日:1985-01-31

    申请号:JP12617383

    申请日:1983-07-13

    Abstract: PURPOSE:To produce the titled compound useful as a synthetic raw material of a compound having carcinostatic and antiviral activities, easily in high yield, by using an alpha-perfluoroalkyl-acrylic acid and a urea derivative as raw materials, and reacting the compounds in the presence of a carboxylic acid anhydride. CONSTITUTION:The compound of formula IV is produced by reacting the alpha-perfluoroalkylacrylic acid of formula II (Rf is 1-10C perfluoroalkyl) with the urea derivative of formula III (R and R are H, alkyl, aralkyl or aryl, and at least one of R and R is H), e.g. methylurea, in the presence of a carboxylic acid anhydride of formula I (R is H, alkyl or aryl or two R's may together form alkylene or polymethylene group), preferably acetic anhydride, at room temperature -200 deg.C, preferably 60-150 deg.C. The compound of formula II is synthesized by reacting 1-halo-1-perfluoroalkylethylene with carbon monoxide and water.

    Production of polyfluoroalkyl halide
    68.
    发明专利
    Production of polyfluoroalkyl halide 失效
    生产聚氟乙烯卤化物

    公开(公告)号:JPS59137424A

    公开(公告)日:1984-08-07

    申请号:JP994083

    申请日:1983-01-26

    Abstract: PURPOSE: To prepare the titled compound useful as an intermediate of surface agent, etc., economically, by reacting a 1W20C halopolyfluorocarbon with substituted or unsubstituted ethylene or acetylene in the presence of a VIII-group metal carbonyl complex.
    CONSTITUTION: The objective compound of formula IV or formula V useful as an intermediate of a water-repellent, oil-repellent, textile sizing agent, etc. as well as the above-mentioned use, is prepared in a short time under mild reaction condition, by reacting (A) a 1W20C compound of formula I (X is Cl, Br, or I; R
    1 and R
    2 are H, halogen or poly-perfluorocarbon residue) with (B) the compound of formula II or III (R
    3 WR
    8 are group of R
    1 or R
    2 , or substituted or unsubstituted alkyl, vinyl, aromatic group, alkyloxy, acyloxy, NH
    2 , amido, silyl, etc.) in the presence of (C) a carbonyl complex of the VIII-group metal of the periodic table (preferably Fe or Ru) preferably at room temperature W120°C.
    COPYRIGHT: (C)1984,JPO&Japio

    Abstract translation: 目的:为了制备可用作表面活性剂中间体等的标题化合物,经济上通过在VIII族金属羰基络合物的存在下使1-20C卤代多氟碳烷与取代或未取代的乙烯或乙炔反应。 构成:在温和的反应条件下,在短时间内制备用作防水,防油,纺织施胶剂等的中间体的式IV或式V的目的化合物,以及上述用途 (A)1-20C的式I化合物(X为Cl,Br或I; R 1和R 2为H,卤素或聚全氟化碳残基)与(B)化合物 式II或III(R 3 -R 8)是R 1或R 2的基团,或取代或未取代的烷基,乙烯基,芳基,烷氧基,酰氧基,NH 2,酰氨基,甲硅烷基等。 )在(C)周期表的VIII族金属(优选Fe或Ru)的羰基络合物存在下,优选在室温-120℃下进行。

    1,1-DIALKOXY-2-TRIFLUOROMETHYLPROPANE

    公开(公告)号:JPS57185233A

    公开(公告)日:1982-11-15

    申请号:JP6943481

    申请日:1981-05-11

    Abstract: NEW MATERIAL:A 1,1-dialkoxy-2-trifluoromethylpropane expressed by formulaI (R is alkyl). EXAMPLE:1,1-Diethoxy-2-trifluoromethylpropane. USE:A starting material for various chemicals having CF3 group, e.g. 2-trifluoromethylpropanal, a stable equivalent to the trifluoromethylpropanal, and usable as a reagent for introducing the 2-trifluoromethylpropyl group. PROCESS:2-Trifluoromethylpropanal expressed by formula II is reacted with an orthoformic ester expressed by the formula HC(OR)3 in a solvent in the presence of ammonium chloride at room temperature -100 deg.C to give the compound expressed by formulaI.

    PREPARATION OF AZLACTONE DERIVATIVE

    公开(公告)号:JPS56164173A

    公开(公告)日:1981-12-17

    申请号:JP6593080

    申请日:1980-05-20

    Abstract: PURPOSE:To prepare the titled compound useful as an intermediate for an antimicrobial agent in simple steps, by reacting a readily available 2-perfluoroalkylpropanal with an N-acylglycine as raw materials in the presence of a base and acetic anhydride. CONSTITUTION:A 2-perfluoroalkylpropanal of formula I (Rf is perfluoroalkyl) is reacted with an N-acylglycine of formula II (R is substituted or unsubstituted alkyl or aromatic group) in the presence of a base, preferably lead acetate, and acetic anhydride, preferably in an ethereal solvent, e.g. tetrahydrofuran, at 50-150 deg.C to give an azlactone derivative of formula III, e.g. azlactone of alpha-benzoylamino- beta-(1-trifluoromethyl)ethylacrylic acid. The compound of formula I is obtained from a 1-perfluoroalkylethylene by the oxo reaction.

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