METHOD FOR PREPARATION OF ANHYDROSUGAR ETHERS
    1.
    发明申请
    METHOD FOR PREPARATION OF ANHYDROSUGAR ETHERS 审中-公开
    无机盐制备方法

    公开(公告)号:WO2009120703A2

    公开(公告)日:2009-10-01

    申请号:PCT/US2009038113

    申请日:2009-03-24

    CPC classification number: C07H3/10 B01J29/06 B01J29/40 C07D493/04 Y02P20/582

    Abstract: A method for alkylation of an anhydrosugar compound in which a dialkyl carbonate is reacted with an anhydrosugar compound in the presence of a solid phase basic catalyst. A typical anhydrosugar compound is anhydrosugar alcohol, a dianhydromonoether and mixtures thereof. The reaction step uses zeolyte as the solid phase basic catalyst. The zeolite catalyst is typically a zeolite having ammonium groups. The reaction is carried out at a temperature below 240° C and the reaction time is 2 hours or less.

    Abstract translation: 烷基化方法,其中在固相碱性催化剂存在下,碳酸二烷基酯与脱水糖化合物反应。 典型的脱水糖化合物是脱水葡萄糖醇,二脱水醚醚及其混合物。 反应步骤使用沸石作为固相碱性催化剂。 沸石催化剂通常是具有铵基团的沸石。 反应在低于240℃的温度下进行,反应时间为2小时以下。

    METHOD FOR PRODUCTION OF 5-HYDROXYMETHYL-2-FURFURAL FROM FRUCTOSE
    4.
    发明申请
    METHOD FOR PRODUCTION OF 5-HYDROXYMETHYL-2-FURFURAL FROM FRUCTOSE 审中-公开
    从果胶生产5-羟基甲基-2-丙酮的方法

    公开(公告)号:WO2009012445A1

    公开(公告)日:2009-01-22

    申请号:PCT/US2008/070465

    申请日:2008-07-18

    CPC classification number: C07D307/46 C07D307/50

    Abstract: A method of producing HMF by mixing or agitating an aqueous solution of fructose and inorganic acid catalyst with a water immiscible organic solvent to form an emulsion of the aqueous and organic phases. The mixture is heated in a flow-through reactor at elevated pressures and then separated into aqueous and organic phases to obtain HMF. The aqueous phase and the organic phase are mixed with an in-line mixer prior to, preferably, immediately before addition of the biphasic reaction mixture into the reactor. After separation, HMF is recovered from the aqueous and organic phases to obtain high yields of HMF without the presence of insoluble solid impurities.

    Abstract translation: 通过将果糖和无机酸催化剂的水溶液与水不混溶的有机溶剂混合或搅拌来形成水相和有机相的乳液来生产HMF的方法。 将混合物在升高的压力下在流通反应器中加热,然后分离成水相和有机相以获得HMF。 在优选在将两相反应混合物加入反应器之前,将水相和有机相与在线混合器混合。 分离后,从水相和有机相回收HMF,以获得高产率的HMF,而不存在不溶性固体杂质。

    PROCESS FOR THE PRODUCTION OF ANHYDROSUGAR ALCOHOLS
    8.
    发明申请
    PROCESS FOR THE PRODUCTION OF ANHYDROSUGAR ALCOHOLS 审中-公开
    生产无水酒精的方法

    公开(公告)号:WO2007103586A2

    公开(公告)日:2007-09-13

    申请号:PCT/US2007006185

    申请日:2007-03-09

    CPC classification number: C07D307/20 C07D307/02 C07D493/04

    Abstract: A process is provided for the preparation of anhydrosugar alcohols. The process involves heating a sugar alcohol or a monoanhydrosugar alcohol starting material in the presence of an acid catalyst and under pressure. Optionally the resulting product is purified. Very high purities are achieved, without necessitating the use of organic solvents in the process.

    Abstract translation: 提供了用于制备脱水葡萄糖醇的方法。 该方法包括在酸催化剂存在下和压力下加热糖醇或单一脱水葡萄糖醇起始原料。 任选地,将所得产物纯化。 实现了非常高的纯度,而不需要在该过程中使用有机溶剂。

    PREPARATION OF AMINOMETHYL FURANS AND ALKOXYMETHYL FURAN DERIVATIVES FROM CARBOHYDRATES
    9.
    发明申请
    PREPARATION OF AMINOMETHYL FURANS AND ALKOXYMETHYL FURAN DERIVATIVES FROM CARBOHYDRATES 审中-公开
    羧甲基纤维素制备氨基甲酰胺和烷氧基甲苯衍生物

    公开(公告)号:WO2012082665A1

    公开(公告)日:2012-06-21

    申请号:PCT/US2011/064513

    申请日:2011-12-13

    Abstract: Described herein are single step methods of making various classes of alkylamine derivatives of furan and tetrahydrofuran by simultaneous contact of a sugar with H 2 , an acid catalyst and hydrogenation catalyst in the presence of an alkylamide solvent. The hydrogenation catalyst is a heterogeneous catalyst comprising a metal selected from the group consisting of Pt, Pd, and nickel. The acid catalysts may be homogeneous mineral acid or a heterogeneous acid catalyst on substrate. In a preferred practice the two catalysts are provided on a common heterogeneous bifunctional support. Using similar combinations of acid and hydrogenation catalysts, there is also described single step methods for making furandimethanol by simultaneously contacting a hexose with the two separate catalysts in the presence of H 2 in an aprotic solvent, such as dimethylformamide. With the same catalyst system and similar reaction conditions, 2, 5 furan dialkylethers can also be made in a single step when the solvent includes an ROH alcohol.

    Abstract translation: 本文描述了通过在烷基酰胺溶剂存在下,通过糖与H 2,酸催化剂和氢化催化剂的同时接触来制备呋喃和四氢呋喃的各种类型的烷基胺衍生物的单步方法。 氢化催化剂是包含选自Pt,Pd和镍的金属的多相催化剂。 酸催化剂可以是均匀的无机酸或基质上的多相酸催化剂。 在优选的实践中,两种催化剂提供在共同的异质双功能载体上。 使用酸和氢化催化剂的类似组合,还描述了通过在非质子溶剂如二甲基甲酰胺中在H 2存在下同时使己糖与两种分离的催化剂接触来制备呋喃二甲醇的单步方法。 在相同的催化剂体系和类似的反应条件下,当溶剂包括ROH醇时,也可以在一个步骤中制备2,5-呋喃二烷基醚。

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