Method for the Production of 1,3-Dioxolane-2-Ones and Carboxylic Acid Esters by Means of Transacylation in Basic Reaction Conditions
    6.
    发明申请
    Method for the Production of 1,3-Dioxolane-2-Ones and Carboxylic Acid Esters by Means of Transacylation in Basic Reaction Conditions 有权
    在碱性反应条件下通过转酰胺生产1,3-二氧戊环-2-酮和羧酸酯的方法

    公开(公告)号:US20100305146A1

    公开(公告)日:2010-12-02

    申请号:US12677920

    申请日:2008-09-03

    摘要: The invention relates to a method for producing 1,3-dioxolane-2-ones of general formula (3) in basic reaction conditions by reesterifying the respective ester of general formula (1) in which R1 to R5 have the meanings indicated in the claims and the description. The invention further relates to a method for producing 2-hydroxy carboxylic acid esters of general formula (5) with or without isolation of the intermediate in the form of a derivative of the 1,3-dioxolane-2-one of general formula (3) in basic reaction conditions by reesterifying the respective ester of general formula (1) in which R1, R2, and R6 have the meanings indicated in the claims and the description. The method according to the invention allows the reaction to take place in very gentle basic conditions, causing fewer secondary reactions and providing a greater yield than reactions in highly polar aprotic solvents. Acid-sensitive and/or temperature-sensitive compounds can be synthesized.

    摘要翻译: 本发明涉及在碱性反应条件下制备通式(3)的1,3-二氧戊环-2-酮的方法,该方法是将通式(1)的各酯酯化,其中R 1至R 5具有权利要求书中所示的含义 和描述。 本发明还涉及一种通式(5)的2-羟基羧酸酯的制备方法,该方法具有或不分离通式(3)的1,3-二氧戊环-2-酮衍生物形式的中间体 )在碱性反应条件下,通过使通式(1)的相应酯重新酯化,其中R 1,R 2和R 6具有权利要求书和说明书中所示的含义。 根据本发明的方法允许反应在非常温和的碱性条件下进行,引起较少的次级反应并且提供比在高极性非质子溶剂中的反应更大的产率。 可以合成酸敏感和/或温度敏感的化合物。

    Method for the production of 1,3-dioxolane-2-ones and carboxylic acid esters by means of transacylation in basic reaction conditions
    7.
    发明授权
    Method for the production of 1,3-dioxolane-2-ones and carboxylic acid esters by means of transacylation in basic reaction conditions 有权
    在碱性反应条件下通过转酰胺生产1,3-二氧戊环-2-酮和羧酸酯的方法

    公开(公告)号:US08263788B2

    公开(公告)日:2012-09-11

    申请号:US12677920

    申请日:2008-09-03

    摘要: The invention relates to a method for producing 1,3-dioxolane-2-ones of general formula (3) in basic reaction conditions by reesterifying the respective ester of general formula (1) in which R1 to R5 have the meanings indicated in the claims and the description. The invention further relates to a method for producing 2-hydroxy carboxylic acid esters of general formula (5) with or without isolation of the intermediate in the form of a derivative of the 1,3-dioxolane-2-one of general formula (3) in basic reaction conditions by reesterifying the respective ester of general formula (1) in which R1, R2, and R6 have the meanings indicated in the claims and the description. The method according to the invention allows the reaction to take place in very gentle basic conditions, causing fewer secondary reactions and providing a greater yield than reactions in highly polar aprotic solvents. Acid-sensitive and/or temperature-sensitive compounds can be synthesized.

    摘要翻译: 本发明涉及在碱性反应条件下制备通式(3)的1,3-二氧戊环-2-酮的方法,该方法是将通式(1)的各酯酯化,其中R 1至R 5具有权利要求中所示的含义 和描述。 本发明还涉及一种通式(5)的2-羟基羧酸酯的制备方法,该方法具有或不分离通式(3)的1,3-二氧戊环-2-酮衍生物形式的中间体 )在碱性反应条件下,通过使通式(1)的相应酯重新酯化,其中R 1,R 2和R 6具有权利要求书和说明书中所示的含义。 根据本发明的方法允许反应在非常温和的碱性条件下进行,引起较少的次级反应并且提供比在高极性非质子溶剂中的反应更大的产率。 可以合成酸敏感和/或温度敏感的化合物。

    METHOD FOR PRODUCING AMMONIUM HEXAFLUOROPHOSPHATES
    10.
    发明申请
    METHOD FOR PRODUCING AMMONIUM HEXAFLUOROPHOSPHATES 审中-公开
    生产氨基十六烷基磷酸酯的方法

    公开(公告)号:US20100063289A1

    公开(公告)日:2010-03-11

    申请号:US12523553

    申请日:2008-01-28

    申请人: Joerg Brandenburg

    发明人: Joerg Brandenburg

    摘要: The invention relates to a method for producing ammonium hexafluorophosphates of general formula (1) wherein R1, R2, R3 and R4 are defined as in the claims and in the description, said novel ammonium hexafluorophosphates and to the use thereof for producing pharmaceutically active compounds.

    摘要翻译: 本发明涉及一种制备通式(1)的六氟磷酸铵的方法,其中R 1,R 2,R 3和R 4如权利要求和说明书所述,所述新型六氟磷酸铵及其用于制备药物活性化合物的用途。