会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 92. 发明申请
    • PROCESS FOR PRODUCING AROMATIC DIHYDROXY COMPOUND
    • 生产芳族二羟基化合物的方法
    • US20160176795A1
    • 2016-06-23
    • US14764344
    • 2014-09-11
    • MITSUI CHEMICALS, INC.
    • Yuya GOTOTakashi NABETA
    • C07C37/60
    • C07C37/60B01J29/89Y02P20/52C07C39/08
    • [Problem] To provide a process for producing an aromatic dihydroxy compound, in which a hydroquinone compound is highly selectively produced while suppressing formation of by-products derived from a solvent and maintaining a high yield based on hydrogen peroxide when a phenol compound is allowed to react with hydrogen peroxide. [Solution]A process for producing an aromatic dihydroxy compound, including allowing a phenol compound to react with hydrogen peroxide in the presence of a titanosilicate, a C4-C5 alcohol containing a tertiary or quaternary carbon, and water and/or methanol, the amount of the water and/or methanol being 5 to 90 mass % based on the total mass of the reaction liquid.
    • 本发明提供一种芳香族二羟基化合物的制造方法,其中氢醌化合物被高选择性地制备,同时抑制来自溶剂的副产物的形成,并且当使苯酚化合物被允许时,保持基于过氧化氢的高收率 与过氧化氢反应。 [方案]一种芳族二羟基化合物的制备方法,其包括使苯酚化合物在钛硅酸盐,含有叔或季碳的C 4 -C 5醇和水和/或甲醇的存在下与过氧化氢反应,所述量 的水和/或甲醇为5〜90质量%,基于反应液的总质量。
    • 94. 发明申请
    • Method for hydroxylating phenols and phenol ethers
    • 苯酚和苯酚醚的羟基化方法
    • US20140073818A1
    • 2014-03-13
    • US14118082
    • 2012-05-15
    • Laurent GarelStephanie NormandPascal PitiotJean-Christophe Bigouraux
    • Laurent GarelStephanie NormandPascal PitiotJean-Christophe Bigouraux
    • C07C41/26C07C37/60
    • C07C41/26C07C37/60Y02P20/582C07C39/08
    • A method for hydroxylating phenols and phenol ethers using hydrogen peroxide and specifically, a method for hydroxylating phenol using hydrogen peroxide. The method for hydroxylating a phenolic substrate selected from a phenol or a phenol ether by reacting such phenolic substrate with hydrogen peroxide in the presence of an acid catalyst comprises the following steps, implemented consecutively or simultaneously: a first step consisting of mixing a phenolic substrate with a hydrogen peroxide solution under conditions in which the temperature is sufficient for the initial phenolic substrate to remain liquid and for minimizing the conversion rate of the hydrogen peroxide; a second step consisting of carrying out the phenolic substrate hydroxylation reaction under adiabatic conditions, the acid catalyst being added at the mixing stage and/or at the beginning of the hydroxylation reaction; and a third step, if necessary, consisting of recovering the hydroxylated product.
    • 使用过氧化氢使酚和酚醚羟基化的方法,具体地说,使用过氧化氢使苯酚羟基化的方法。 在酸催化剂存在下使这种酚类底物与过氧化氢反应,通过使酚类底物与过氧化氢反应来羟基化选自酚或酚醚的方法包括以下步骤:连续或同时实施:第一步,将酚类底物与 过氧化氢溶液,其中温度足以使初始酚类底物保持液体并使过氧化氢的转化率最小化; 第二步是在绝热条件下进行酚类底物羟基化反应,在混合阶段和/或在羟化反应开始时加入酸催化剂; 如果需要,第三步是回收羟基化产物。
    • 97. 发明授权
    • Process of producing catechol derivatives
    • 生产邻苯二酚衍生物的方法
    • US6080895A
    • 2000-06-27
    • US91525
    • 1998-06-19
    • Yoshiro FurukawaKeishi Takenaka
    • Yoshiro FurukawaKeishi Takenaka
    • C07C41/26C07C45/55C07C45/68C07C45/71C07C37/60
    • C07C45/71C07C41/26C07C45/55C07C45/68Y02P20/55
    • An improved process for producing a catechol derivative (1) useful as a intermediate of pharmaceuticals and agricultural chemicals, being shown by the following reaction scheme. The process is characterized in that formulation in the first step is carried out in the two stages, that is, the reaction is carried out in the presence of a tin catalyst at 60-85.degree. C. to a conversion of 30 to 80% and then is completed at 95-105.degree. C. to produce a salicylaldehyde derivative (3) in a high yield and a high selectivity. Thereby, the objective catechol derivative (1) can be obtained in a high yield and with a high purity. ##STR1## In the above formula, R is alkyl, cycloalkyl, aralkyl, alkoxy, halogen atom, allyl, or aryl, and R.sup.1 is a hydroxy protective group.
    • PCT No.PCT / JP96 / 03650。 371日期:1998年6月19日 102(e)1998年6月19日PCT PCT 1996年12月13日PCT公布。 出版物WO97 / 22574 日期:1997年6月26日通过以下反应方案示出了用作药物和农药中间体的儿茶酚衍生物(1)的改进方法。 该方法的特征在于第一步中的配方在两个阶段进行,即反应在锡催化剂存在下在60-85℃下进行,转化率为30-80%, 然后在95-105℃下完成,以高产率和高选择性生产水杨醛衍生物(3)。 由此,能够以高收率和高纯度获得目标儿茶酚衍生物(1)。 在上式中,R是烷基,环烷基,芳烷基,烷氧基,卤素原子,烯丙基或芳基,R 1是羟基保护基。
    • 98. 发明授权
    • Silica/zeolite composite materials in spherical form and process for
their preparation
    • 二氧化硅/沸石复合材料球形及其制备方法
    • US5965476A
    • 1999-10-12
    • US801593
    • 1997-02-14
    • Luigi BalducciRaffaele UngarelliCristina Tonini
    • Luigi BalducciRaffaele UngarelliCristina Tonini
    • B01J29/04B01J29/06B01J29/70B01J29/80B01J29/89C01B37/00C01B39/02C07C37/60B01J32/00
    • C07C37/60B01J29/80B01J29/89B01J29/7007Y02P20/52
    • The present invention relates to silica/zeolite composite materials in spherical form and the process for their preparation which occurs by the dispersion of submicronic particles of titanium silicalite, beta zeolite, or mixtures of beta zeolite with titanium silicalite, in a silica sol synthesized by acid hydrolysis of silicon alkoxides; the hybrid sol thus obtained, subjected to emulsification and gelation techniques in organic mediums, produces these materials in a spherical form with an average diameter of between 20 and 150 .mu.m and containing up to 70% by weight of titanium silicalite, beta zeolite or mixtures of titanium silicalite/beta zeolite.The materials of the invention, having a high mechanical resistance and characterized by a surface area of between 300 and 800 m.sup.2 /g, are applied as catalysts; in particular, those consisting of titanium silicalite or mixtures of titanium silicalite/beta zeolite are advantageously used in oxidation reactions of organic compounds with hydrogen peroxide.
    • 本发明涉及球形二氧化硅/沸石复合材料及其制备方法,其通过在硅酸钠溶液中分解而制得的二氧化硅/沸石复合材料,其通过将钛硅沸石,β沸石的亚微米级颗粒或β-沸石与钛硅沸石的混合物分散在由硅酸 硅烷醇盐的水解; 由此获得的在有机介质中进行乳化和凝胶化技术的混合溶胶将这些材料制成球形,平均直径为20至150μm,并含有至多70重量%的钛硅沸石,β沸石或混合物 的钛硅质岩/β沸石。 本发明的具有高机械性能并且表征面积在300-800m2 / g之间的材料被用作催化剂; 特别是由钛硅沸石或钛硅沸石/β沸石的混合物组成的有机化合物与过氧化氢的氧化反应有利地使用。