Method for synthesis of an output including diesters of 5-methyl-2-furoic acid

    公开(公告)号:US09783517B2

    公开(公告)日:2017-10-10

    申请号:US14661139

    申请日:2015-03-18

    摘要: The present invention describes methods and apparatuses for the synthesis of 5-(chloromethyl)-2-furaldehyde (CMF) from saccharides in pure or crude form, the method comprising: (a) continuously contacting saccharides in pure or crude form, hydrochloric acid, and an organic solvent, by way of a continuous, biphasic-flow reactor assembly at a temperature from about 60 degrees C. to about 200 degrees C. and pressures from about 1 atmosphere to about 20 atmospheres, such that CMF is produced; (b) separating 5-(chloromethyl)-2-furaldehyde by liquid/liquid and solid/liquid phase separation; (c) producing at least five kilograms per day with at least 50% yield. Embodiments of the present invention can produce CMF in a continuous fashion, with high yield and without degradation of CMF to such side products as 5-(hydroxymethyl)furfural (HMF), 2-(2-hydroxyacetyl)furan (HAF) and levulinic acid (LA).

    Acid-functionalized polyolefin materials and their use in acid-promoted chemical reactions
    10.
    发明授权
    Acid-functionalized polyolefin materials and their use in acid-promoted chemical reactions 有权
    酸官能化聚烯烃材料及其在酸促进的化学反应中的应用

    公开(公告)号:US09359320B2

    公开(公告)日:2016-06-07

    申请号:US14032727

    申请日:2013-09-20

    IPC分类号: C07D307/48

    CPC分类号: C07D307/48

    摘要: An acid-functionalized polyolefin material that can be used as an acid catalyst in a wide range of acid-promoted chemical reactions, wherein the acid-functionalized polyolefin material includes a polyolefin backbone on which acid groups are appended. Also described is a method for the preparation of the acid catalyst in which a precursor polyolefin is subjected to ionizing radiation (e.g., electron beam irradiation) of sufficient power and the irradiated precursor polyolefin reacted with at least one vinyl monomer having an acid group thereon. Further described is a method for conducting an acid-promoted chemical reaction, wherein an acid-reactive organic precursor is contacted in liquid form with a solid heterogeneous acid catalyst comprising a polyolefin backbone of at least 1 micron in one dimension and having carboxylic acid groups and either sulfonic acid or phosphonic acid groups appended thereto.

    摘要翻译: 酸官能化的聚烯烃材料可以在广泛的酸促进的化学反应中用作酸催化剂,其中酸官能化的聚烯烃材料包括其上附有酸基团的聚烯烃主链。 还描述了一种制备酸催化剂的方法,其中前体聚烯烃经受足够功率的电离辐射(例如电子束照射),并且所照射的前体聚烯烃与其上具有酸基团的至少一种乙烯基单体反应。 进一步描述了一种用于进行酸促进的化学反应的方法,其中酸反应性有机前体以液体形式与固体多相酸催化剂接触,所述固体多相酸催化剂在一个维度上包含至少1微米的聚烯烃主链并具有羧酸基团, 与其附着的磺酸或膦酸基。