METAL-CATALYZED ASYMMETRIC 1,4-CONJUGATE ADDITION OF VINYLBORON COMPOUNDS TO 2-SUBSTITUTED-4-OXY- CYCLOPENT-2-EN-L-ONES YIELDING PROSTAGLANDINS AND PROSTAGLANDIN ANALOGS
    5.
    发明申请
    METAL-CATALYZED ASYMMETRIC 1,4-CONJUGATE ADDITION OF VINYLBORON COMPOUNDS TO 2-SUBSTITUTED-4-OXY- CYCLOPENT-2-EN-L-ONES YIELDING PROSTAGLANDINS AND PROSTAGLANDIN ANALOGS 审中-公开
    金属催化不对称1,4-连接的乙烯基化合物添加到2-取代的4-氧代环丙-2-烯-L-引发剂前体和前列腺素类似物

    公开(公告)号:WO2016005943A1

    公开(公告)日:2016-01-14

    申请号:PCT/IB2015/055212

    申请日:2015-07-09

    CPC classification number: C07F7/1892 C07F5/025 C07F7/1856

    Abstract: This invention provides a novel method for the preparation of 2,3- disubstituted-4-oxy-cyclopentan-l-one compounds that are useful for the synthesis of prostaglandins and prostaglandin analogs of industrial relevance. The method comprises the metal -catalyzed asymmetric 1,4-conjugate addition of vinylboron compounds to 2- substituted-4-oxy-cyclopent-2-en-l-ones. This method relies on the use of less toxic, easily- handled reagents, and can be performed under milder conditions than offered by some conventional methods, affording 2,3-disubstituted-4-oxy-cyclopentan-l-one compounds enantio- and diastereoselectively, which are precursors to the said prostaglandin and prostaglandin analogs, in high yield.

    Abstract translation: 本发明提供了一种制备2,3-二取代-4-羟基 - 环戊烷-1-酮化合物的新方法,其可用于合成具有工业相关性的前列腺素和前列腺素类似物。 该方法包括乙烯基硼化合物向2-取代-4-羟基 - 环戊-2-烯-1-酮的金属催化不对称1,4-偶合物加成。 该方法依赖于使用毒性较小且易于处理的试剂,并且可以在比通过一些常规方法提供的温和条件下进行,得到2,3-二取代-4-氧代 - 环戊烷-1-酮化合物对映异构和非对映选择性 ,其是高产量的前列腺素和前列腺素类似物的前体。

    THE PREPARATION OF BIOPOLYOL ESTERS FOR LUBRICANT APPLICATION

    公开(公告)号:WO2014133380A8

    公开(公告)日:2014-09-04

    申请号:PCT/MY2014/000026

    申请日:2014-02-28

    Abstract: Ester polyol esters are a unique class of lubricants that have adjustable molecular weights, viscosities, and pour points based on the character of their reaction materials and relative ratios. There is provided a method for preparing at least one ester polyol ester, the method comprising the method comprising preparing a reaction mixture comprising at least one polyol compound; at least one dicarboxylic acid; and at least one monocarboxylic acid, wherein the at least one polyol compound is esterified with the at least one dicarboxylic acid and the at least one monocarboxylic acid, wherein the reaction mixture has a hydroxyl group to carboxyl group ratio (HCR) corresponding to a ratio of moles of hydroxyl groups to moles of carboxyl groups, and the HCR is less than about 1.

    混合エステル
    8.
    发明申请
    混合エステル 审中-公开
    混合的ESTER

    公开(公告)号:WO2013115296A1

    公开(公告)日:2013-08-08

    申请号:PCT/JP2013/052137

    申请日:2013-01-31

    Abstract:  本発明は、ペンタエリスリトールまたはペンタエリスリトールおよび式(I) で表されるジペンタエリスリトールからなる混合多価アルコールと、3,5,5-トリメチルヘキサン酸および2-プロピルヘプタン酸を含有するカルボン酸との混合エステルを提供する。該混合エステルは、冷凍機油として必要な粘度範囲を確保しながら、かつフルオロプロペンを含有する冷媒との相溶性、低温特性、酸化安定性、酸化・加水分解安定性、潤滑性等の優れた性能をバランスよく有し、冷凍機油等の工業用潤滑油等に用いられる。

    Abstract translation: 本发明提供了季戊四醇或包含式(I)所示的季戊四醇和二季戊四醇的混合多元醇的混合酯; 和含有3,5,5-三甲基己酸和2-丙基庚酸的羧酸。 该混合酯与包含氟丙烯的冷却剂的相容性,低温性,氧化稳定性,氧化/水解稳定性和润滑性等良好的特性具有良好的平衡。 保持制冷剂油所需的粘度范围; 可用作制冷剂油等的工业润滑剂。

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