Process for producing difunctional aliphatic organic compounds
    2.
    发明授权
    Process for producing difunctional aliphatic organic compounds 失效
    二官能脂肪族有机化合物的制备方法

    公开(公告)号:US4322547A

    公开(公告)日:1982-03-30

    申请号:US170956

    申请日:1980-07-21

    摘要: Process industrially and economically useful for preparing difunctional aliphatic organic compounds of formulaX-(CH.sub.2).sub.n -Yin which n=6,7, X=--COOH, --COOR, Y=--CN, --COOH, --CONH.sub.2, --CH.sub.2 --NH.sub.2 --COOR wherein R is a linear or branched alkyl containing 1-6 carbon atoms.The process starts from a ketone of the formula ##STR1## in which n=2,3 and R.sub.1 =--CN, --COOH. The ketone (I) is changed to the corresponding hydroperoxide by means of H.sub.2 O.sub.2, the hydroperoxide is catalytically split by means of a catalyst Fe.sup.++ /Cu.sup.++ to give an unsaturated acid of the formulaHOOC--(CH.sub.2).sub.3 --CH.dbd.CH--(CH.sub.2).sub.2 -R.sub.1and this is catalytically hydrogenated to the compoundHOOC--(CH.sub.2).sub.n -R.sub.1When R.sub.1 is different from Y, R.sub.1 is changed to Y through known methods.

    摘要翻译: 工业上和经济上可用于制备其中n = 6,7,X = -COOH,-COOR,Y = -CN,-COOH,-CONH 2,-CH 2 -NH 2的式X-(CH 2)n Y的二官能脂族有机化合物 -COOR,其中R是含1-6个碳原子的直链或支链烷基。 该方法从其中n = 2,3和R 1 = -CN,-COOH的式“I”酮的酮开始。 通过H 2 O 2将酮(I)改变成相应的氢过氧化物,通过催化剂Fe ++ / Cu ++催化分解氢过氧化物,得到式HOOC-(CH 2)3 -CH = CH-(CH 2) )2-R1,并且其被催化氢化成化合物HOOC-(CH 2)n -R 1当R 1不同于Y时,通过已知方法将R 1改变为Y。

    Process for the production of carboxylic acids
    7.
    发明授权
    Process for the production of carboxylic acids 失效
    羧酸生产工艺

    公开(公告)号:US07012155B2

    公开(公告)日:2006-03-14

    申请号:US10275949

    申请日:2001-05-11

    摘要: Aliphatic carboxylic acids of formulae (Ib) R1—COOH(Ia) and R2—COOH wherein R1 is tertiary C4-20-alkyl and R2 together are —(CH2)n— with n=3 to 10, are produced by oxidizing an aliphatic or alicyclic ketone of the formula (II): wherein R1 and R2 are as defined above, with molecular oxygen in the presence of a soluble manganese (II) compound. The process has a high selectivity and is carried out under very mild conditions. It is especially useful for the production of dicarboxylic acids, such as, adipic acid, from cyclic ketones.

    摘要翻译: 式(Ib)R 1 -COOH(Ia)和R 2 -COOH的脂族羧酸其中R 1是叔C 1 -C 4烷基, 4-20 - 烷基和R 2一起是 - (CH 2)n - ,其中n = 3至10,是 通过氧化式(II)的脂族或脂环族酮:其中R 1和R 2如上所定义,与分子氧在可溶性锰 (II)化合物。 该方法具有高选择性,并且在非常温和的条件下进行。 对于从环状酮生产二羧酸,例如己二酸是特别有用的。

    Process for the production of certain 2,3-dihydro-benzofuran derivatives
    10.
    发明授权
    Process for the production of certain 2,3-dihydro-benzofuran derivatives 失效
    制备某些2,3-二氢 - 苯并呋喃衍生物的方法

    公开(公告)号:US4816592A

    公开(公告)日:1989-03-28

    申请号:US575544

    申请日:1984-01-31

    CPC分类号: C07D307/86

    摘要: A process for the production of benzofuran derivatives having the general formula, ##STR1## wherein R is alkyl, in particular of 2,3-dihydro-2,2-dimethyl benzofuran-7-ol, starting from pyrocatechol ethers in one step operation.The process essentially consists of heating a solution of pyrocatechol ether in an inert organic solvent in the presence of a catalyst comprising metals of 3.degree. and 4.degree. group of the Periodic System in form of carboxylates or of modified zeolites.The products are known intermediates for the production of insecticides.

    摘要翻译: 其中R为烷基,特别是2,3-二氢-2,2-二甲基苯并呋喃-7-醇的苯并呋喃衍生物的制备方法,其一步操作由邻苯二酚醚开始制备。 该方法主要包括在含有羧酸盐或改性沸石形式的定期系统3和4的金属的催化剂存在下,将惰性有机溶剂中的邻苯二酚醚溶液加热。 该产品是用于生产杀虫剂的已知中间体。