PROCESS FOR ACID DEHYDRATION OF SUGAR ALCOHOLS
    1.
    发明申请
    PROCESS FOR ACID DEHYDRATION OF SUGAR ALCOHOLS 审中-公开
    酸性酒精酸脱除方法

    公开(公告)号:WO2014137619A1

    公开(公告)日:2014-09-12

    申请号:PCT/US2014/017563

    申请日:2014-02-21

    CPC classification number: C07D493/04

    Abstract: A process is described for the acid-catalyzed dehydration of a sugar alcohol, wherein the catalyst comprises a water-tolerant Lewis acid. In particular embodiments, the catalyst comprises a homogeneous water-tolerant Lewis acid, especially a homogeneous Lewis acid selected from the group consisting of bismuth (III) triflate, gallium (III) triflate, scandium (III) triflate, aluminum triflate, tin (II) triflate and indium (III) triflate. Such catalysts are effective for dehydrating both of sorbitol and the 1,4-sorbitan dehydration precursor of isosorbide, and bismuth (III) triflate particularly is beneficial for dehydrating mannitol to isomannide.

    Abstract translation: 描述了用于糖醇的酸催化脱水的方法,其中所述催化剂包含耐水路易斯酸。 在特定实施方案中,催化剂包含均相耐水路易斯酸,特别是选自三氟甲磺酸铋(III),三氟甲磺酸镓(III),三氟甲磺酸钪(III),三氟甲磺酸铝,二(二 )三氟甲磺酸盐和铟(III)三氟甲磺酸盐。 这种催化剂对山梨糖醇和异山梨醇的1,4-脱水山梨糖醇脱水前体的脱水是有效的,并且三氟甲磺酸铋(III)特别有利于将甘露糖醇脱水成异麦芽糖苷。

    REDUCED COLOR EPOXIDIZED ESTERS FROM EPOXIDIZED NATURAL FATS AND OILS
    4.
    发明申请
    REDUCED COLOR EPOXIDIZED ESTERS FROM EPOXIDIZED NATURAL FATS AND OILS 审中-公开
    从环氧化天然脂肪和油中减少颜色的环氧化酯

    公开(公告)号:WO2013002913A1

    公开(公告)日:2013-01-03

    申请号:PCT/US2012/038760

    申请日:2012-05-21

    CPC classification number: C11C3/10 C07D303/42 C08K5/10 C11B3/02 C11C1/08

    Abstract: Reduced color epoxidized fatty acid esters are provided which may be used as primary plasticizers for PVC, in replacement of phthalate plasticizers. The reduced color epoxidized fatty acid esters are prepared from natural fats or oils by transesterification and interesterification processes, whereby through the use of borohydride, materials having Pt-Co colors according to ASTM D1209 on the order of 50 and lower are possible.

    Abstract translation: 提供了减少颜色的环氧化脂肪酸酯,其可用作PVC的主要增塑剂,以替代邻苯二甲酸酯增塑剂。 通过酯交换和酯交换方法由天然脂肪或油制备还原型环氧化脂肪酸酯,由此通过使用硼氢化物,可以使用根据ASTM D1209的Pt-Co颜色的数量级为50以下的材料。

    AN IMPROVED GLYCOL ACYLATION PROCESS
    5.
    发明申请
    AN IMPROVED GLYCOL ACYLATION PROCESS 审中-公开
    改进的甘油酰化方法

    公开(公告)号:WO2015094895A1

    公开(公告)日:2015-06-25

    申请号:PCT/US2014/069701

    申请日:2014-12-11

    CPC classification number: C07D493/04 B01J31/0232 B01J2231/49 B01J2531/004

    Abstract: A method for acid-catalyzed acylation of an isohexide is described. The method can enable direct alcohol acylation with carboxylic acids. In particular, the method involves reacting an isohexide and an excess of carboxylic acid, in the presence of a water-tolerant Lewis acid catalyst. Water-tolerant Lewis aid catalysts can furnish relatively high diester yields (e.g., ≥ 55%-60%) at lower catalyst loads. This feature, among others, is highly desirable for cost savings, and can improve process economics.

    Abstract translation: 描述了用于酸性催化酰化异己烯酯的方法。 该方法可以实现与羧酸的直接醇酰化。 特别地,该方法包括在耐水性路易斯酸催化剂存在下使异己烯醚和过量的羧酸反应。 耐水Lewis助催化剂可以在较低的催化剂负载下提供较高的二酯产率(例如≥55%-60%)。 这一特性尤其适用于节省成本,并且可以提高工艺经济性。

    PRODUCTION OF 5-MEMBERED AND 6-MEMBERED CYCLIC ESTERS OF POLYOLS
    7.
    发明申请
    PRODUCTION OF 5-MEMBERED AND 6-MEMBERED CYCLIC ESTERS OF POLYOLS 审中-公开
    制备多组分5份和6份环状酯

    公开(公告)号:WO2009155020A2

    公开(公告)日:2009-12-23

    申请号:PCT/US2009/045383

    申请日:2009-05-28

    CPC classification number: C07D493/04 C07D493/22 Y02P20/582

    Abstract: Described herein are improved methods for the preparation of 5- and 6-membered cyclic mono and diesters of sugar alcohols and anhydrosugar alcohols by reaction with an organic acid RCOOH over a solid acidic substrate. The process is adaptable to a continuous process for simultaneously making and separating the cyclic esters from the sugar alcohols and anhydrosugar alcohols under mild conditions using the solid acid substrate as both the catalyst and a chromatographic bed for separation. The reactions are performed at mild temperatures of 700C to 10O0C and the formation of the cyclic esters is nearly quantitative. Also described is a method for making 5- and 6-membered cyclic mono and diesters of sugar alcohols and anhydrosugar alcohols using microwave irradiation in the presence of the organic acid.

    Abstract translation: 本文描述了通过在固体酸性底物上与有机酸RCOOH反应来制备糖醇和脱水糖醇的5-和6-元环状单酯和二酯的改进方法。 该方法适用于在温和条件下使用固体酸底物作为催化剂和用于分离的色谱床同时制备和分离环状酯与糖醇和脱水葡萄糖醇的连续方法。 反应在70℃至100℃的温和温度下进行,环酯的形成几乎是定量的。 还描述了在有机酸存在下使用微波辐射制备糖醇和脱水糖醇的5-和6-元环状单酯和二酯的方法。

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