Method for the synthesis of an aromatic derivative ortho-disubstituted
by a halogen atom other than fluorine and by a cyano group
    12.
    发明授权
    Method for the synthesis of an aromatic derivative ortho-disubstituted by a halogen atom other than fluorine and by a cyano group 失效
    合成由氟以外的卤素原子和氰基进行二取代的芳香族衍生物的方法

    公开(公告)号:US6156922A

    公开(公告)日:2000-12-05

    申请号:US101034

    申请日:1998-09-15

    CPC classification number: C07C253/14

    Abstract: The present invention relates to a method for the synthesis of a halogen substituted aryl nitrile, where the halogens are selected from Cl, Br, or I, by reacting an aryl dihalide with a halogen/fluoride exchange reactant to produce a halogen substituted aryl fluoride which is then reacted with a fluoride/cyanide exchange reactant to produce the halogen substituted aryl nitrile.

    Abstract translation: PCT No.PCT / FR96 / 02100 Sec。 371日期:1998年9月15日 102(e)1998年9月15日PCT PCT 1996年12月27日PCT公布。 第WO97 / 24318号公报 日期1997年7月10日本发明涉及一种卤素取代的芳基腈的合成方法,其中卤素选自Cl,Br或I,通过使二卤化芳基与卤素/氟化物交换反应物反应生成 卤素取代的芳基氟化物,然后与氟化物/氰化物交换反应物反应以产生卤素取代的芳基腈。

    Process for the hydroxyalkylation of a carbocyclic aromatic ether
    14.
    发明授权
    Process for the hydroxyalkylation of a carbocyclic aromatic ether 失效
    碳环芳族醚的羟烷基化方法

    公开(公告)号:US5811587A

    公开(公告)日:1998-09-22

    申请号:US776495

    申请日:1997-01-23

    CPC classification number: C07C45/38 C07B41/02 C07C41/30

    Abstract: The present invention concerns a process for the hydroxyalkylation of a carbocyclic aromatic ether. The invention preferably relates to the preparation of 3-methoxy-4-hydroxybenzyl alcohol by the hydroxymethylation of guaiacol. It also concerns the oxidation of the hydroxyalkylated ethers obtained, in particular the oxidation of 3-methoxy-4-hydroxybenzyl alcohol to 3-methoxy-4-hydroxybenzaldehyde, commonly known as "vanillin". The process for the hydroxyalkylation of a carbocyclic aromatic ether of the invention consists of reacting the aromatic ether with a carbonyl compound in the presence of a catalyst and is characterized in that the hydroxyalkylation reaction is carried out in the presence of an effective quantity of a zeolite.

    Abstract translation: PCT No.PCT / FR96 / 00778 Sec。 371日期1997年1月23日 102(e)日期1997年1月23日PCT提交1996年5月24日PCT公布。 WO96 / 37452 PCT公开号 日期:1996年11月28日本发明涉及碳环芳族醚的羟烷基化方法。 本发明优选涉及通过愈创木酚的羟甲基化制备3-甲氧基-4-羟基苄醇。 它还涉及所获得的羟烷基化醚的氧化,特别是3-甲氧基-4-羟基苄醇氧化为3-甲氧基-4-羟基苯甲醛,通常称为“香草醛”。 本发明的碳环芳族醚的羟基烷基化方法包括在催化剂存在下使芳族醚与羰基化合物反应,其特征在于羟烷基化反应在有效量的沸石存在下进行 。

    Method for the synthesis of perfluorosulphonamides, perfluorosulphonamides and their salts, and a sulphonation reagent
    17.
    发明授权
    Method for the synthesis of perfluorosulphonamides, perfluorosulphonamides and their salts, and a sulphonation reagent 有权
    全氟磺酰胺,全氟磺酰胺及其盐的合成方法和磺化试剂

    公开(公告)号:US06297398B1

    公开(公告)日:2001-10-02

    申请号:US09423486

    申请日:1999-11-09

    CPC classification number: C07C303/38 C07C311/48

    Abstract: The invention concerns a method of sulphonation characterised in that it consists in contacting a nucleophile whose nucleophilic atom is a nitrogen atom with a reagent comprising by successive or simultaneous addition: a heavy sulphonyl halide (i.e. whose atomic number is not less than that of chlorine), advantageously suphonyl chloride; and an organic base both not capable of alkylation and lipid soluble; and the organic part of said sulphonyl is perfluorinated on the carbon carried by the sulphur. The invention is applicable to organic synthesis.

    Abstract translation: 本发明涉及一种磺化方法,其特征在于它包括使亲核原子是氮原子的亲核试剂与通过连续或同时加入的试剂接触:重磺酰卤(即其原子序数不小于氯原子数) ,有利地是异丙基氯; 和不能烷基化和脂溶性的有机碱; 并且所述磺酰基的有机部分在由硫携带的碳上全氟化。 本发明适用于有机合成。

    Method for preparing lactam
    18.
    发明授权
    Method for preparing lactam 有权
    制备内酰胺的方法

    公开(公告)号:US06262259B1

    公开(公告)日:2001-07-17

    申请号:US08875451

    申请日:1999-10-28

    CPC classification number: C07D201/08 Y02P20/52 Y02P20/582 Y02P20/584

    Abstract: The present invention includes a process for the preparation of a lactam by vapor phase reaction of an aliphatic aminonitrile with water in the presence of a solid catalyst, wherein the catalyst is an alumina having a specific surface, measured by the BET method, greater than or equal to 10 m2/g. The alumina catalyst is further characterized by either: (a) a specific surface less than or equal to 280 m2/g, and a volume of pores with a diameter greater than 500 Å which is greater than or equal to 10 ml/100 g; or (b) a specific surface greater than or equal to 50 m2/g and less than or equal to 280 m2/g, and a volume of pores with a diameter greater than 70 Å which is greater than or equal to 30 m2/g.

    Abstract translation: 本发明包括在固体催化剂存在下通过脂族氨基腈与水的气相反应制备内酰胺的方法,其中催化剂是通过BET法测量的比表面积的氧化铝,大于或等于 等于10 m2 / g。 氧化铝催化剂的特征还在于:(a)小于或等于280m 2 / g的比表面积,以及直径大于500埃的孔体积大于或等于10ml / 100g; 或(b)大于或等于50m 2 / g且小于或等于280m 2 / g的比表面积,以及直径大于70埃的孔体积大于或等于30m 2 / g 。

    Acylation method for an aromatic compound
    20.
    发明授权
    Acylation method for an aromatic compound 失效
    芳香族化合物的酰化方法

    公开(公告)号:US06194616B1

    公开(公告)日:2001-02-27

    申请号:US09202666

    申请日:1999-04-06

    CPC classification number: C07C45/46 C07B41/06 Y02P20/582

    Abstract: The present invention concerns a process for acylation of an aromatic compound. The acylation process of the invention consists of reacting the aromatic compound with an acylation agent in the presence of a zeolitic catalyst, and is characterized in that it consists of: mixing the aromatic compound and the acylation compound in any manner; passing said mixture over a catalytic bed comprising at least one zeolite; recirculating the reaction mixture from the catalytic bed over the catalytic bed for a number of times which is sufficient to obtain the desired degree of conversion of the substrate.

    Abstract translation: 本发明涉及一种酰化芳族化合物的方法。本发明的酰化方法包括在沸石催化剂存在下使芳族化合物与酰化剂反应,其特征在于它包括:将芳族化合物 和酰化化合物;将所述混合物通过包含至少一种沸石的催化床;将催化床上的反应混合物在催化床上再循环多次,其足以获得所需的转化率 基质。

Patent Agency Ranking