Process for the production of penicillanic acid compounds
    2.
    发明公开
    Process for the production of penicillanic acid compounds 失效
    生产青霉烷酸化合物的方法

    公开(公告)号:EP0382863A1

    公开(公告)日:1990-08-22

    申请号:EP89102476.2

    申请日:1989-02-14

    IPC分类号: C07D499/08 C07D499/00

    CPC分类号: C07D499/00 G05B2219/25249

    摘要: A process for the production of penicllic acid compounds, especially chloromethyl ester of penicillin G, penicillin V or sulbactam by esterification in the presence of a phase transfer catalyst of the general formula
    (R¹)(R²)(R³) (R⁴)NX      (III)
    wherein R¹, R², R³ and R⁴ are the same or different and each is an alkyl or aralkyl group and X is a hydroxide, chloride, bromide or hydrogensulfate ion.

    摘要翻译: 在通式(R 1)(R 2)(R 3)(R 4)NX(III)的相转移催化剂存在下酯化生产青霉酸化合物,特别是青霉素G,青霉素V或舒巴坦的氯甲基酯的方法 )其中R 1,R 2,R 3和R 4相同或不同,各自是烷基或芳烷基,X是氢氧化物,氯化物,溴化物或硫酸氢根离子。

    Process for production of ester compounds
    7.
    发明公开
    Process for production of ester compounds 失效
    生产酯化合物的方法

    公开(公告)号:EP0333468A3

    公开(公告)日:1990-06-06

    申请号:EP89302585.8

    申请日:1989-03-16

    IPC分类号: C07C69/732 C07C67/03

    CPC分类号: C07C67/03 C07C69/732

    摘要: In producing ester compunds useful as an antixidant for organic materials which are reperesented by the formula:
    , wherein R¹ and R² are the same or different hydrogen or straight or branched chain alkyl radicals containing 1 - 8 carbon atoms, Z is an organic radical derived from an n-hydroxy alcohol, and n denotes an integer of 1 to 4, by the transesterification, monoalkyltin compounds are used as a catalyst, whereby the ester compounds can be produced with high quality and in high yields.

    Process for production of ester compounds
    9.
    发明公开
    Process for production of ester compounds 失效
    维尔法赫尔·赫尔斯特隆·冯·埃斯特波本登恩。

    公开(公告)号:EP0333468A2

    公开(公告)日:1989-09-20

    申请号:EP89302585.8

    申请日:1989-03-16

    IPC分类号: C07C69/732 C07C67/03

    CPC分类号: C07C67/03 C07C69/732

    摘要: In producing ester compunds useful as an antixidant for organic materials which are reperesented by the formula:
    , wherein R¹ and R² are the same or different hydrogen or straight or branched chain alkyl radicals containing 1 - 8 carbon atoms, Z is an organic radical derived from an n-hydroxy alcohol, and n denotes an integer of 1 to 4, by the transesterification, monoalkyltin compounds are used as a catalyst, whereby the ester compounds can be produced with high quality and in high yields.

    摘要翻译: 在生产可用作有机材料的抗固形剂的酯化合物中,其用下式所示:其中R 1和R 2是相同或不同的氢或含有1-8个碳原子的直链或支链烷基 原子,Z是由正羟基醇衍生的有机基团,n表示1〜4的整数,通过酯交换反应,可以使用单烷基锡化合物作为催化剂,从而可以高品质,高产出生成酯化合物 产量。