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    HYDANTOIN DERIVATIVE
    91.
    发明专利
    HYDANTOIN DERIVATIVE 失效

    公开(公告)号：JPS63183567A

    公开(公告)日：1988-07-28

    申请号：JP21790587

    申请日：1987-09-02

    Applicant: SAGAMI CHEM RES

    Inventor： HIRAI KENJI ,  FUCHIGAMI TAKAMASA ,  FUJITA ATSUKO ,  HIROSE HIROAKI ,  YOKOTA MASAHIRO ,  NAGATO SHOIN

    IPC: C07D233/96 ,  A01N43/50

    Abstract: NEW MATERIAL:The compound of formula I (X and Y are halogen; R is H, alkyl, cycloalkyl, alkenyl or alkynyl; R is H, alkyl, alkenyl or alkynyl; R and R are H or lower alkyl). EXAMPLE:1-Methyl-3-(2'-fluoro-4'-chloro-5'-methoxyphenyl)-5-isopropyli denehyda ntoin. USE:A herbicide exhibiting especially excellent herbicidal effect by the application before sprouting or in the young sprout stage of weeds. PREPARATION:The compound of formula I can be produced e.g. by reacting a compound of formula II successively with compounds of formula R Z and formula R Z (Z is eliminable group) in the presence of a base preferably in an organic solvent. The starting compound of formula II is obtained by treating a compound of formula III (R is lower alkyl or aralkyl) in the presence of a base, thereby removing carbonate group.

    HERBICIDE
    94.
    发明专利
    HERBICIDE 失效

    公开(公告)号：JPS62167713A

    公开(公告)日：1987-07-24

    申请号：JP24176186

    申请日：1986-10-11

    Applicant: SAGAMI CHEM RES ,  CHISSO CORP ,  KAKEN PHARMA CO LTD

    Inventor： HIRAI KENJI ,  FUCHIGAMI TAKAMASA ,  MURATA ATSUKO ,  HIROSE HIROAKI ,  YOKOTA MASAHIRO ,  NAGATO SHOIN

    IPC: C07D263/44 ,  A01N43/76

    Abstract: NEW MATERIAL:An oxazolidinedione derivative of formula I (R -R are H, halogen, NO2, alkyl, alkoxy, alkenyloxy, alkynyloxy or cyclo-alkylox0y; R and R are H, alkyl, aryl or together form a polymethylene chain). EXAMPLE:3-(4'-Chlorophenyl)-5-isopropylidene-1,3-dioxazolidine-2-,4-di one. USE:A herbicide having high selectivity and strong herbicidal activity against weeds. PREPARATION:The compound of formula I can be produced by reacting an aryl isocyanate or carbamoyl chloride of formula II (Y is isocyanato or chlorocarbamoyl) with a beta, gamma-unsaturated-alpha-hydroxycarboxylic acid ester of formula III and treating the resultant carbamic acid ester of formula IV with a base in an organic solvent.

    Preparation of 5-acyloxy-3,3-dimethyl-4-pentenoic ester and 5,5-diacyloxy-3,3-dimethylpentanoic ester
    97.
    发明专利
    Preparation of 5-acyloxy-3,3-dimethyl-4-pentenoic ester and 5,5-diacyloxy-3,3-dimethylpentanoic ester 失效
    5-氰基-3,3-二甲基-4-硝基苯酯和5,5-二氧代-3,3-二甲基戊酸酯的制备

    公开(公告)号：JPS6187645A

    公开(公告)日：1986-05-06

    申请号：JP20989284

    申请日：1984-10-08

    Applicant: Sagami Chem Res Center

    Inventor： FUCHIGAMI TAKAMASA ,  URATA HISAO ,  TANAKA MARIKO ,  KONDO SEI

    IPC: C07C67/313 ,  C07C69/675 ,  C07C69/732

    Abstract: PURPOSE: To obtain the titled compds. useful as a raw material for 5-oxo-3,3- dimethylpentanoic esters easily at a low cost, by reacting a 3,3-dimethyl-4- pentenoic ester with a carboxylic acid in the presence of a Pd catalyst and O
    2 .
    CONSTITUTION: A 3,3-dimethyl-4-pentenoic ester expressed by formula I (R is alkyl) and a carboxylic and expressed by formula II (R
    1 =R) such as acetic acid are reacted in the presence of a Pd catalyst such as palladium acetate under 0.2W100atm partial pressure of O
    2 at room temp. W 150°C to give a 5-acyloxy-3,3-dimethyl-4-pentenoic ester expressed by formula III and 5,5- diacyloxy-3,3-dimethylpentanoic ester expressed by formula IV. The products are acetalized, and are subjected to deprotecting reaction to obtain the aimed 5-oxo-3,3-dimethylpentanoic ester such as a compound, expressed by formula V, and known as a raw material for inspecticides such as permethrin easily at a low cost.
    COPYRIGHT: (C)1986,JPO&Japio

    Abstract translation: 目的：获取标题的compds。 通过在Pd催化剂和O 2存在下，使3,3-二甲基-4-戊烯酸酯与羧酸反应，以低成本容易地作为5-氧代-3,3-二甲基戊酸酯的原料。 构成：由式I表示的3,3-二甲基-4-戊烯酸酯（R为烷基）和羧酸，并由式II（R 1 = R）表示，如乙酸）在Pd 催化剂如乙酸钯在室温下在0.2-100atm的O 2分压下进行。 150℃，得到式III表示的5-酰氧基-3,3-二甲基-4-戊烯酸酯和由式Ⅳ表示的5,5-二酰氧基-3,3-二甲基戊酸酯。 将产物缩醛化，并进行脱保护反应，得到目标的5-氧代-3,3-二甲基戊酸酯，如式V表示的化合物，在低浓度下容易被称为氯菊酯等检查剂的原料 成本。

    Production of arylacetaldehyde acetal
    98.
    发明专利
    Production of arylacetaldehyde acetal 失效
    生产芳基乙炔乙缩醛

    公开(公告)号：JPS6178742A

    公开(公告)日：1986-04-22

    申请号：JP19871784

    申请日：1984-09-25

    Applicant: Sagami Chem Res Center

    Inventor： HIRAI KENJI ,  FUCHIGAMI TAKAMASA

    IPC: C07C41/00 ,  B01J31/16 ,  C07C41/56 ,  C07C43/303 ,  C07C67/00

    Abstract: PURPOSE: To obtain the titled compound economically, by isomerizing the corresponding ethylene oxide derivative to an aryl acetaldehyde in the presence of a specific metal salt or complex salt, and reacting with an alcohol in the presence of the above salt or complex salt.
    CONSTITUTION: The objective compound of formula I useful as an intermediate of perfumery, agricultural chemicals or pharmaceuticals is produced from a raw material available easily in an industrial scale, in a short time at a low temperature, by isomerizing the salt or complex salt of formula III (M is IB-. IIA-, IIB- or VIII-group metal; L is ligand; Y is base conjugated with Broensted acid; m is integer of 0W4; n is 1, 2 or 3) at 0W300°C, preferably room temperatureW100°C, and reacting the resultant compound of formula IV with the compound of formula V (R
    2 is alkyl or two R
    2 groups together form ethyl ene or polymethylene which may have substituent group) in the presence of the above salt or complex salt.
    COPYRIGHT: (C)1986,JPO&Japio

    Abstract translation: 目的：为了经济地获得标题化合物，通过在特定的金属盐或配合盐的存在下将相应的环氧乙烷衍生物异构化成芳基乙醛，并在上述盐或络合盐的存在下与醇反应。 构成：可用作香料，农药或药物中间体的式I的目标化合物是通过在低温下在短时间内容易地以工业规模可获得的原料生产的，通过使式 III（M是IB-，IIA-，IIB-或VIII族金属; L是配体; Y是与布朗斯台德酸结合的碱; m是0-4的整数; n是1,2或3） 并且使得到的式Ⅳ化合物与式Ⅴ化合物（R 2是烷基或两个R 2基团）一起形成可以具有的乙烯或聚亚甲基 取代基）在上述盐或络合盐存在下反应。

    Preparation of 2-fluoropropanal
    99.
    发明专利
    Preparation of 2-fluoropropanal 失效
    2-氟代的制备

    公开(公告)号：JPS617228A

    公开(公告)日：1986-01-13

    申请号：JP12759284

    申请日：1984-06-22

    Applicant: Sagami Chem Res Center

    Inventor： FUCHIGAMI TAKAMASA ,  SUZUKI YASUYUKI

    IPC: C07C45/50 ,  B01J23/40 ,  B01J31/20 ,  C07B61/00 ,  C07C45/00 ,  C07C47/14 ,  C07C67/00

    CPC classification number: Y02P20/52

    Abstract: PURPOSE: To obtain the titled compound useful as a raw material for synthesis of various compounds in high yield, by hydroformylating a monofluoroethylene in the presence of a catalyst of group VIII metal in the periodic table such as readily available hexarhodium hexadecacarbonyl.
    CONSTITUTION: A monofluroroethylene expressed by formula I is hydroformylated using a group VIII metal in the peroidic table (cobalt and rhodium are especially preferably) as a catalyst (example; tetracarbonylcobalt hydride, etc.) under ordinary pressure W300atm of carbon monoxide and hydrogen at room temperature W300°C to obtain 2-fluoropropanol expressed by formula II. The amount of the catalyst to be used is within 1/10W1/10
    6 mol range based on the monofluoroethylene.
    COPYRIGHT: (C)1986,JPO&Japio

    Abstract translation: 目的：通过在元素周期表中的第Ⅷ族金属催化剂的存在下，通过在单氟乙烯中加成甲酰化来获得可用作高收率合成各种化合物的原料的标题化合物，例如容易得到的十六碳酰六腙。 构成：在常压-300atm的一氧化碳和氢气的作用下，通过式I表示的单氟代乙烯基用式（表中钴和铑是特别优选的）作为催化剂（例如：四羰基钴氢化物等），使用Ⅷ族金属加氢甲酰化 室温-300℃，得到式II表示的2-氟丙醇。 催化剂的使用量相对于一氟乙烯为1 / 10-1 / 10 -6摩尔以下。

    5-FLUORO-6-CHLOROURACIL DERIVATIVE AND ITS PREPARATION
    100.
    发明专利
    5-FLUORO-6-CHLOROURACIL DERIVATIVE AND ITS PREPARATION 失效

    公开(公告)号：JPS60184066A

    公开(公告)日：1985-09-19

    申请号：JP3861384

    申请日：1984-03-02

    Applicant: SAGAMI CHEM RES

    Inventor： FUCHIGAMI TAKAMASA ,  YAMANOUCHI AKIKO ,  SUZUKI YASUYUKI

    IPC: C07D239/553 ,  C07D239/54 ,  C07D239/62

    Abstract: NEW MATERIAL:A 5-fluoro-6-chlorouracil derivative shown by the formula I (R is H, alkyl, or aralkyl). EXAMPLE:5-Fluoro-6-chlorouracil. USE:An intermediate for a 5-fluorouracil derivative useful as a carcinostatic drug. PREPARATION:A 5-fluorobarbituric acid derivative shown by the formula II is reacted with phosphorus oxychloride to obtain a 5-fluoro-6-chlorouracil derivative shown by the formula I . The compound shown by the formula II is easily obtained by reacting a fluoromalonic diester with an unsubstituted or substituted urea.

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