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    ENZYME-CATALYZED POLYOXYALKYLENE ESTERS
    6.
    发明公开
    ENZYME-CATALYZED POLYOXYALKYLENE ESTERS 审中-公开

    公开(公告)号：EP3169659A4

    公开(公告)日：2018-01-31

    申请号：EP15821304

    申请日：2015-07-14

    申请人： EASTMAN CHEM CO

    发明人： CLENDENNEN STEPHANIE KAY ,  CLAUSON JEFFREY MICHAEL

    IPC分类号： C07C67/26 ,  C07C69/22 ,  C07C69/28 ,  C07C69/34 ,  C08G65/332 ,  C12P7/62

    CPC分类号： C12P7/625 ,  C07C69/22 ,  C07C69/28 ,  C07C69/34 ,  C08G65/3322

    摘要： One aspect of the present invention is a polyoxyalkylene ester composition comprising the reaction product of a polyoxyalkylated alcohol or polyol reactant and an acyl donor wherein the ester has greater than about 85 weight percent of a fully acylated polyoxyalkylene ester, less than about 15 percent of a partially acylated polyoxyalkylene ester, less than about 5 parts per million 1,4-dioxane and an acid number of less than about 20. Another aspect of the invention is a process for making the polyoxyalkylene ester composition that includes the steps of contacting a reaction mixture of an polyoxyalkylated alcohol or polyol reactant and an acyl donor reactant in a reactor and in the presence of an enzymatic catalyst under esterification conditions and recovering the polyoxyalkylene ester.

    PROCESS FOR PREPARING CARBOXYLIC ACID ESTERS IN THE PRESENCE OF A TITANIUM-CONTAINING CATALYST
    7.
    发明公开
    PROCESS FOR PREPARING CARBOXYLIC ACID ESTERS IN THE PRESENCE OF A TITANIUM-CONTAINING CATALYST 审中-公开
    在含钛催化剂存在下制备羧酸酯的方法

    公开(公告)号：EP3194357A1

    公开(公告)日：2017-07-26

    申请号：EP14853146.0

    申请日：2014-09-19

    申请人： Public Joint Stock Company "Sibur Holding"

    发明人： KOLESNIK, Vasily Dmitrievich ,  NOSIKOV, Alexei Alexandrovich ,  KALININ, Rodion Georgievich ,  BOBRIKOVA, Anastasia Alexandrovna ,  SHERSTOBITOV, Ivan Anatolievich

    IPC分类号： C07C67/08 ,  C07C69/82 ,  C07C69/28 ,  C07C69/54

    CPC分类号： C07C67/08 ,  C07C69/82 ,  C07C69/28 ,  C07C69/54 ,  C07C69/80

    摘要： The present invention relates to a process for preparing carboxylic acid esters, comprising esterification of a carboxylic acid with an alcohol in the presence of a titanium-containing catalyst selected from compounds of a general formula, Tin(OR)x(OR')xOy, wherein n is an integer from 1 to 4; у is an integer from 0 to 6; x can be the same or different and is an integer from 2 to 8; R is a linear or branched C1-C18alkyl, C3-C18cycloalkyl, R' is aryl optionally comprising an electron-donor substituent; or a mixture thereof, with the proviso that if n is 1, then x is 2 and у is 0; and if n>1, then the compounds comprise at least two alkoxy groups and two aryloxy groups. The present invention also relates to a process for preparing carboxylic acid esters, wherein a compound of general formula (I) or (II), wherein q represents an integer of 1 to 4; Y is independently R or R'; or a mixture thereof, with the proviso that the compounds comprise at least two alkoxy groups and two aryloxy groups, is used as a catalyst. The claimed process allows to reduce the amount of a used catalyst and the time of the process duration, while increasing the conversion rate of initial reagents and the yield of a target product.

    摘要翻译： 本发明涉及一种制备羧酸酯的方法，该方法包括在选自通式为Tin（OR）x（OR'）xOy的化合物的含钛催化剂存在下用醇酯化羧酸 其中n是1至4的整数; у是一个从0到6的整数; x可以相同或不同，并且是2至8的整数; R为直链或支链C 1 -C 18烷基，C 3 -C 18环烷基，R'为任选包含电子给体取代基的芳基; 或其混合物，条件是如果n是1，则x是2且y是0; 并且如果n> 1，那么所述化合物包含至少两个烷氧基和两个芳氧基。 本发明还涉及制备羧酸酯的方法，其中通式（I）或（II）的化合物，其中q表示1至4的整数; Y独立地为R或R'; 或其混合物，条件是该化合物包含至少两个烷氧基和两个芳氧基作为催化剂。 要求保护的方法允许减少使用过的催化剂的量和处理持续时间，同时增加初始试剂的转化率和目标产物的产率。