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    Method for the preparation of phenols
    1.
    发明授权
    Method for the preparation of phenols 有权
    苯酚的制备方法

    公开(公告)号：US09527789B2

    公开(公告)日：2016-12-27

    申请号：US14907671

    申请日：2014-07-25

    申请人： WEYLCHEM FRANKFURT GMBH

    发明人： Klaus Forstinger ,  Reinhard Schwesinger ,  Andreas Maier

    IPC分类号： C07C37/00 ,  C07C37/045 ,  C07C51/367 ,  C07C51/00

    CPC分类号： C07C37/00 ,  C07C37/045 ,  C07C51/00 ,  C07C51/367 ,  C07C39/28 ,  C07C39/07 ,  C07C65/10

    摘要： The present invention relates to a method for the preparation of phenols, in which an aryldiazonium salt, which is prepared by the diazotisation of a corresponding aromatic, primary amine, is decomposed by heating in a mixture containing hot water, a mineral acid and an organic solvent, wherein the organic solvent contains a ketone of formula (I) R1C(O)R2 in which R1 and R2 independently stand for (C1-C5)-alkyl and R1 and R2 together have at least four carbon atoms, wherein the aromatic primary amine is aniline or a substituted aniline, which contains at least one further substituent which is selected from: alkyl, alkenyl, alkynyl, halogen, haloalkyl, cycloalkyl, heteroaryl, carboxyl, cyan, alkoxyl and ester, and wherein substantially no copper salts are contained in the mixture.

    摘要翻译： 本发明涉及一种制备苯酚的方法，其中通过相应的芳族伯胺的重氮化制备的芳基重氮盐通过在含有热水，无机酸和有机物的混合物中加热而分解 溶剂，其中有机溶剂含有式（I）R 1 C（O）R 2的酮，其中R 1和R 2独立地代表（C 1 -C 5） - 烷基，R 1和R 2一起具有至少4个碳原子，其中芳族伯 胺是苯胺或取代的苯胺，其含有至少一个选自烷基，烯基，炔基，卤素，卤代烷基，环烷基，杂芳基，羧基，氰基，烷氧基和酯的另外的取代基，其中基本上不含铜盐 在混合物中。

    Catalytic method for the production of carbonyl compounds
    2.
    发明授权
    Catalytic method for the production of carbonyl compounds 失效

    公开(公告)号：US07453013B2

    公开(公告)日：2008-11-18

    申请号：US11898339

    申请日：2007-09-11

    申请人： Franco Antognoli ,  Paul Rys

    发明人： Franco Antognoli ,  Paul Rys

    IPC分类号： C07C45/28

    CPC分类号： B01J31/0218 ,  B01J31/0215 ,  B01J31/28 ,  B01J2231/70 ,  C07C45/28

    摘要： The invention relates to a catalytic method for the production of aliphatic and aromatic carbonyl compounds with at least one aldehyde or ketone function, whereby said compounds can also comprise at least one aldehyde and ketone function. A starting material comprising at least one aliphatic- and/or aromatic-bonded functional group of formula (I), where R1═H, alkyl or aryl, X═H, or a group which may be substituted by the sulphinyl group of a sulphoxide during the catalytic reaction, n=a whole number from 1 to 8, is oxidised in the presence of a sulphoxide and/or a sulphide and the presence of iron salts or redox pairs of iron/copper or silver/copper salts, by means of an oxidising agent with a redox potential of E0>+2 V vs. NHE, whereby the sulphoxide or sulphide has a catalytic function. The method permits the production of carbonyl compounds, in particular, (poly)aldehydes and (poly)ketones with high selectivity, whereby the formation of alcohols and carboxylic acids, dimerisation products and other by-products is reduced to a minimum or essentially prevented. The final products obtained find application as important intermediates and final products.