利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

7 条记录 (耗时 0.013 秒)

    Process for the preparation of aromatic polyhydroxy compounds
    1.
    发明授权
    Process for the preparation of aromatic polyhydroxy compounds 失效
    芳香族多羟基化合物的制备方法

    公开(公告)号：US5364983A

    公开(公告)日：1994-11-15

    申请号：US133660

    申请日：1993-10-07

    申请人： Laurent Weisse ,  Heinz Strutz

    发明人： Laurent Weisse ,  Heinz Strutz

    IPC分类号： B01J31/02 ,  C07B61/00 ,  C07C37/56 ,  C07C39/08 ,  C07C37/00

    CPC分类号： C07C37/56

    摘要： The present invention relates to a process for the preparation of aromatic polyhydroxy compounds, by reacting an aromatic hydroxyaldehyde with hydrogen peroxide, with or without the addition of a base, in the presence of a nitrile R--CN, in which R is an alkyl radical having 1 to 4 carbon atoms or a phenyl radical, which is unsubstituted or substituted by one or more alkyl groups.

    摘要翻译： 本发明涉及一种制备芳族多羟基化合物的方法，其中芳基羟基醛与过氧化氢在碱存在或不加入下，在腈R-CN存在下反应，其中R是烷基 具有1至4个碳原子或苯基，其未被取代或被一个或多个烷基取代。

    Halogenated cinnamic acids and esters thereof, processes for the preparation thereof and halogenated aryldiazonium salts
    2.
    发明授权
    Halogenated cinnamic acids and esters thereof, processes for the preparation thereof and halogenated aryldiazonium salts 失效
    卤化肉桂酸​​及其酯，其制备方法和卤代芳基重氮盐

    公开(公告)号：US5516932A

    公开(公告)日：1996-05-14

    申请号：US178089

    申请日：1994-01-06

    申请人： Matthias Beller ,  Hartmut Fischer ,  Laurent Weisse ,  Klaus Forstinger ,  Ralf Pfirmann ,  Heinz Strutz

    发明人： Matthias Beller ,  Hartmut Fischer ,  Laurent Weisse ,  Klaus Forstinger ,  Ralf Pfirmann ,  Heinz Strutz

    IPC分类号： B01J23/44 ,  C07B61/00 ,  C07C57/60 ,  C07C67/333 ,  C07C67/343 ,  C07C69/65 ,  C07C245/20 ,  C07C69/76

    CPC分类号： C07C245/20 ,  C07C57/60 ,  C07C67/343 ,  C07C69/65

    摘要： The present invention relates to compounds of the formula ##STR1## in which R.sup.1 and R.sup.2 are identical or different and are hydrogen or an alkyl radical having 1 to 18 carbon atoms and optionally containing oxygen, nitrogen or halogen, the radicals X, Y and Z are identical and are a fluorine, bromine or iodine atom or if two of the radicals X, Y or Z are identical or all of the radicals X, Y, Z are different from each other, X, Y and Z are a fluorine, chlorine, bromine or iodine atom. The invention further relates to a process for the preparation of the compounds, by reacting an aryldiazonium salt of the formula ##STR2## in which the radicals X, Y and Z are identical and are a fluorine, bromine or iodine atom or, if two of the radicals X, Y and Z are identical or all of the radicals X, Y, Z are different from each other, X, Y and Z are a fluorine, chlorine, bromine or iodine atom and A.sup.(-) is an anion of an acid having a pK.sub.a

    摘要翻译： 本发明涉及式（I）的化合物，其中R 1和R 2相同或不同并且是氢或具有1至18个碳原子并且任选地含有氧，氮或卤素的烷基，基团X， Y和Z相同并且是氟，溴或碘原子，或者如果基团X，Y或Z中的两个相同或基团X，Y，Z的全部彼此不同，则X，Y和Z是 氟，氯，溴或碘原子。 本发明还涉及通过使基团X，Y和Z相同且为氟，溴或碘原子的式（II）的芳基重氮盐与式 如果基团X，Y和Z中的两个相同或全部基团X，Y，Z彼此不同，X，Y和Z是氟，氯，溴或碘原子，并且A（ - ）是 具有pKa <7的酸的阴离子与式（III）的化合物反应，其中R 1和R 2相同或不同，并且是氢或具有1至18个碳原子的烷基，并且任选地含有氧，氮 或卤素，在含钯催化剂的存在下，如果合适，加入碱，和式（II）的芳基重氮盐。

    Process for selective preparation of hydroxybenzaldehydes
    4.
    发明授权
    Process for selective preparation of hydroxybenzaldehydes 失效
    选择性制备羟基苯甲醛的方法

    公开(公告)号：US5395978A

    公开(公告)日：1995-03-07

    申请号：US154255

    申请日：1993-11-18

    申请人： Laurent Weisse ,  Robert Neunteufel ,  Heinz Strutz

    发明人： Laurent Weisse ,  Robert Neunteufel ,  Heinz Strutz

    IPC分类号： C07B61/00 ,  C07C45/49 ,  C07C47/565 ,  C07C47/57

    CPC分类号： C07C47/565 ,  C07C45/49 ,  C07C47/57

    摘要： Process for preparing hydroxybenzaldehydes of the formula (1) ##STR1## in which R.sup.1 -R.sup.4 are hydrogen, fluorine, chlorine, bromine, alkyl, alkoxy, phenyl, naphthyl, phenylalkyl, naphthylalkyl, phenoxy or saturated or unsaturated cyclopentane or cyclohexane radicals, and R.sup.1 -R.sup.4 may with the hydroxybenzene ring carbon atoms on which they are located form 1 or 2 saturated or unsaturated isocyclic or heterocyclic rings, by admixing 1 mol of a phenol of the formula (2) ##STR2## in which R.sup.1 -R.sup.4 have the stated meanings, in a pressure vessel with from 5 to 100 mol of hydrogen fluoride and from 0.5+x to 1.5+x mol of boron trifluoride, where x is the number of oxygen atoms contained in the starting compound (formula (2)), setting the mixture to from -10.sup..degree. to 100.degree. C. and then passing carbon monoxide into this mixture until a pressure of from 10 to 150 bar is reached and allowing the mixture to react at the desired pressure reached.

    摘要翻译： 制备式（1）的羟基苯甲醛的方法其中R 1 -R 4是氢，氟，氯，溴，烷基，烷氧基，苯基，萘基，苯基烷基，萘基烷基，苯氧基或饱和或不饱和环戊烷或环己烷 自由基和R1-R4可以与它们所位于的羟基苯环碳原子一起形成1或2个饱和或不饱和的环或杂环，通过将1mol式（2）的苯酚（2）在 在具有5至100摩尔氟化氢和0.5 + x至1.5 + x摩尔三氟化硼的压力容器中，R1-R4具有所述含义，其中x为起始化合物中所含的氧原子数（ 式（2）），将混合物置于-10℃至100℃，然后将一氧化碳通入该混合物中直至达到10至150巴的压力，并使混合物在达到的所需压力下反应。

    Process for the preparation of substituted indanones
    6.
    发明授权
    Process for the preparation of substituted indanones 失效
    制备取代茚满酮的方法

    公开(公告)号：US5329049A

    公开(公告)日：1994-07-12

    申请号：US53716

    申请日：1993-04-27

    申请人： Laurent Weisse ,  Heinz Strutz

    发明人： Laurent Weisse ,  Heinz Strutz

    IPC分类号： C07C45/45 ,  C07C45/46 ,  C07C49/67

    CPC分类号： C07C49/67 ,  C07C45/46

    摘要： 1-Indanones of the formula III or IIIa ##STR1## in which R.sup.1 to R.sup.7 are preferably hydrogen or alkyl, or adjacent radicals R.sup.1 to R.sup.4 form a ring, are obtained in a one-step reaction by reacting a compound I ##STR2## with a compound of the formula II ##STR3## in liquid hydrogen fluoride.

    摘要翻译： 其中R 1至R 7优选为氢或烷基或相邻基团R 1至R 4形成环的式III或IIIa（IIIa）（IIIa）（IIIa）的1-茚满酮在一步反应中获得 通过使化合物I（I）与式II的化合物（II）在液体氟化氢中反应。