PROCESS FOR THE PREPARATION OF LIQUID TIN(II) ALKOXIDES
    2.
    发明申请
    PROCESS FOR THE PREPARATION OF LIQUID TIN(II) ALKOXIDES 有权
    制备液氮(II)烷氧化物的方法

    公开(公告)号:US20160280726A1

    公开(公告)日:2016-09-29

    申请号:US14442672

    申请日:2013-10-30

    CPC classification number: C07F7/2224 C07F7/2296

    Abstract: A synthetic process of producing liquid tin(II) alkoxides for use as either catalysts in the synthesis of lactide or as initiators in the polymerization of cyclic ester monomers to yield biodegradable polyesters is described. The synthetic process employs anhydrous tin(II) chloride dissolved in n-heptane mixed with dry diethylamine. Alcohols, ROH, in which the R groups are n-C4H9, n-C6H13, and n-C8H17 are added to the reaction mixture and stirred for 12 hours. The reaction mixture is then filtered under nitrogen or argon before being evaporated to dryness to yield the three tin(II) alkoxides, namely: tin(II) n-butoxide, tin(II) n-hexoxide, and tin(II) n-octoxide. All three tin(II) alkoxides are viscous, dark yellow liquids which are highly soluble in most common organic solvents. Furthermore, they can all be stored under an inert atmosphere for long periods without any significant change in their reactivity and therefore, in their effectiveness as catalysts/initiators.

    Abstract translation: 描述了用于合成丙交酯中的催化剂或作为环状酯单体聚合反应以产生可生物降解的聚酯的引发剂的液态锡(II)的合成方法。 合成方法使用溶解在与无水二乙胺混合的正庚烷中的无水氯化锡(II)。 将R基团为n-C 4 H 9,n-C 6 H 13和n -C 8 H 17的醇,ROH加入到反应混合物中并搅拌12小时。 然后将反应混合物在氮气或氩气下过滤,然后蒸发至干,得到三种锡(II)醇盐,即:正丁醇锡(II),正己氧基锡(II)和锡(II) 辛烷 所有三种锡(II)醇盐是粘稠的深黄色液体,其在大多数常见的有机溶剂中是高度可溶的。 此外,它们都可以在惰性气氛下长时间储存​​,而且它们的反应性没有任何显着变化,因此它们作为催化剂/引发剂的有效性。

    PHYTOCHEMICAL COMPOSITIONS INCLUDING SESAMIN FOR ANTI-INFLAMMATORY, ANTI-CYTOKINE STORM, AND OTHER USES

    公开(公告)号:US20170333390A1

    公开(公告)日:2017-11-23

    申请号:US15622639

    申请日:2017-06-14

    Abstract: A composition (e.g., phytochemical composition) including sesamin, the composition exhibiting anti-inflammatory, anti-cytokine storm, connective tissue preservation, anti-viral, and/or other properties in biological tissue. The phytochemical composition therapeutically affects a pro-inflammatory cytokine condition, for instance facilitating or effectuating decrease in a quantity of a pro-inflammatory cytokine, for example, interleukin-1 and tumor necrosis-alpha. The phytochemical composition facilitates or effectuates an increase in quantity of an anti-inflammatory cytokines. The phytochemical composition can additionally facilitate a connective tissue extracellular matrix (ECM) preservation effect. The phytochemical composition can also inhibit an action of a viral neuraminidase, for example, the influenza A virus neuraminidase. Uses of sesamin for manufacture of phytochemical compositions having predetermined concentrations of sesamin include facilitating a decrease in quantity of pro-inflammatory cytokines, an increase in anti-inflammatory cytokines, a connective tissue anti-degenerative effect, and/or an inhibition of viral neuraminidase within the living organism. Manufacturing processes for the phytochemical compositions are also described.

    Process for the preparation of liquid tin(II) alkoxides

    公开(公告)号:US09637507B2

    公开(公告)日:2017-05-02

    申请号:US14442672

    申请日:2013-10-30

    CPC classification number: C07F7/2224 C07F7/2296

    Abstract: A synthetic process of producing liquid tin(II) alkoxides for use as either catalysts in the synthesis of lactide or as initiators in the polymerization of cyclic ester monomers to yield biodegradable polyesters is described. The synthetic process employs anhydrous tin(II) chloride dissolved in n-heptane mixed with dry diethylamine. Alcohols, ROH, in which the R groups are n-C4H9, n-C6H13, and n-C8H17 are added to the reaction mixture and stirred for 12 hours. The reaction mixture is then filtered under nitrogen or argon before being evaporated to dryness to yield the three tin(II) alkoxides, namely: tin(II) n-butoxide, tin(II) n-hexoxide, and tin(II) n-octoxide. All three tin(II) alkoxides are viscous, dark yellow liquids which are highly soluble in most common organic solvents. Furthermore, they can all be stored under an inert atmosphere for long periods without any significant change in their reactivity and, therefore, in their effectiveness as catalysts/initiators.

Patent Agency Ranking