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88 条记录 (耗时 0.015 秒)

    Process for producing cinnamic acid from 1,1,1,3-tetrachloro-3-phenylpropane
    2.
    发明授权
    Process for producing cinnamic acid from 1,1,1,3-tetrachloro-3-phenylpropane 失效
    从1,1,1,3-四氯-3-苯基丙烷生产肉桂酸的方法

    公开(公告)号：US4806681A

    公开(公告)日：1989-02-21

    申请号：US58610

    申请日：1987-06-04

    申请人： Milan Hajek ,  Premysl Silhavy

    发明人： Milan Hajek ,  Premysl Silhavy

    IPC分类号： C07C57/44 ,  C07C51/00 ,  C07C51/093 ,  C07C67/00

    CPC分类号： C07C51/093

    摘要： This invention relates to a process for preparing cinnamic acid by hydrolysis of 1,1,1,3-tetrachloro-3-phenylpropane with acetic acid, trifluoroacetic acid or formic acid, optionally in the presence sulphuric acid, phosphoric acid, para-toluenesulphonic acid, or a cation exchange resin containing sulphonic acid groups. The mixture is heated at a temperature from about 80.degree. to about 150.degree. C. until hydrogen chloride evolution ceases, after which time the cinnamic acid is separated.

    摘要翻译： 本发明涉及通过用乙酸，三氟乙酸或甲酸水解1,1,1,3-四氯-3-苯基丙烷制备肉桂酸的方法，任选在硫酸，磷酸，对甲苯磺酸 ，或含有磺酸基团的阳离子交换树脂。 将混合物在约80℃至约150℃的温度下加热至停止氯化氢，之后分离肉桂酸。

    Process for the manufacture of perfluoroalkylmethylene-carboxylic acids
    3.
    发明授权
    Process for the manufacture of perfluoroalkylmethylene-carboxylic acids 失效
    制备全氟烷基亚甲基羧酸的方法

    公开(公告)号：US3954817A

    公开(公告)日：1976-05-04

    申请号：US442951

    申请日：1974-02-15

    申请人： Horst Jager

    发明人： Horst Jager

    IPC分类号： C07C51/00 ,  C07C51/093 ,  C07C51/27 ,  C07C53/21 ,  C07C67/00 ,  D06M13/02 ,  D06M13/184 ,  D06M13/207 ,  C07C51/16

    CPC分类号： C07C53/21 ,  C07C51/093 ,  C07C51/27

    摘要： A new process for the manufacture of perfluoroalkylmethylenecarboxylic acids of the formulaR.sub.f (CH.sub.2 CF.sub.2).sub.m.sub.-1 CH.sub.2 COOH,wherein R.sub.f is an unbranched or branched perfluoroalkyl radical with 3 to 14 carbon atoms and m is 1 to 3, which comprises reacting perfluoroalkyl iodides of the formula R.sub.f (CH.sub.2 CF.sub.2).sub.m -I with concentrated nitric acid. The compounds are e.g. useful as intermediates for the manufacture of oil- and water repellents; further they can be used themselves e.g. as surface active assistants or as lubricants.

    摘要翻译： 制备式Rf（CH 2 CF 2）m-1 CH 2 COOH的全氟烷基亚甲基羧酸的新方法，其中Rf是具有3至14个碳原子且m为1至3的无支链或支链全氟烷基，其包括使式 Rf（CH 2 CF 2）mI，浓硝酸。 化合物是例如 用作制造拒水拒油剂的中间体; 此外，它们可以自己使用，例如 作为表面活性助剂或润滑剂。

    Method of producing 1,3-bis(carboxymethyl)adamantanes
    4.
    发明授权
    Method of producing 1,3-bis(carboxymethyl)adamantanes 失效
    生产1,3-BIS（羧甲基）ADAMANTANES的方法

    公开(公告)号：US3751455A

    公开(公告)日：1973-08-07

    申请号：US3751455D

    申请日：1970-08-18

    申请人： KAO CORP

    发明人： INAMOTO Y ,  NAKAYAMA H ,  TAKENAKA H

    IPC分类号： C07C51/093 ,  C07C51/00

    CPC分类号： C07C51/093 ,  C07C55/30

    摘要： 1,3-BIS8CARBOXYMETHYL) DERIVATIVES OF ADAMANTANE AND ALKYLADAMANTANES ARE PREPARED IN ONE STEP BY THE REACTION OF AN ADAMANTANE, VINYLIDENE CHLORIDE, AND T-BUTYL ALCOHOL IN CONCENTRATED SULFURIC ACID IN THE PRESENCE OF FUMING SULFURIC ACID. THE PRESENCE OF FUMING SULFURIC ACID IS OF ABSOLUTE NECESSITY BECAUSE THE SECOND CARBOXYMETHHYL GROUP CAN NOT SUBSTANTIALLY BE INTRODUCED INTO ADMANTANE RINGS WITHOUT FUMING SULFURIC ACID.

    Method for hydrolyzing tetrachloroalkanes
    5.
    发明授权
    Method for hydrolyzing tetrachloroalkanes 失效
    水解四氯化碳的方法

    公开(公告)号：US3598846A

    公开(公告)日：1971-08-10

    申请号：US3598846D

    申请日：1969-08-12

    申请人： ASAHI CHEMICAL IND

    发明人： WAKASA RYOICHI ,  SAOTOME KAZUO ,  YAMASAKI TOSHIAKI

    IPC分类号： C07C51/093 ,  C11C3/00

    CPC分类号： C07C51/093 ,  C07C53/19

    摘要： A METHOD FOR PRODUCING IN HIGH YIELD W-CHLORACARBOXYLIC ACIDS OF THE FORMULA CI(CH2)NCOOH, WHEREIN N IS AN EVEN INTERGER BETWEEN 10 AND 14 INCLUSIVE. SAID METHOD COMPRISES SIMULTANEOUSLY CONTACTING A TETRACHOLROALKANE OF THE FORMULA CI(CH2)NCCI3, WHEREIN N IS AS DEFINED ABOVE WITH NITRIC ACID OR FUMING NITRIC ACID, PARTICULARLY FUMING NITRIC ACID OF SPECIFIC GRAVITY GREATER THAN 1.50, IN THE PRESENCE OF OXYGEN AT A TEMPERATURE OF 40*80* C. TO FORM A MIXTURE AND PASSING GASEOUS NITROGEN DIOXIDE IN AN AMOUNT OF AT LEAST 1/3 OF THE WEIGHT OF THE NITRIC ACID USED THROUGH SAID MIXTURE TO CONVERT THE TETRACHLOROALKANE TO THE CORRESPONDING W-CHLOROCARBOXYLIC ACID.