PROCESS FOR PREPARING QUATERNARY SALTS OF PIPERIDYL ESTERS OF MANDELIC ACID
    3.
    发明申请
    PROCESS FOR PREPARING QUATERNARY SALTS OF PIPERIDYL ESTERS OF MANDELIC ACID 有权
    制备苹果酸季铵盐季铵盐的方法

    公开(公告)号:US20090270629A1

    公开(公告)日:2009-10-29

    申请号:US12418847

    申请日:2009-04-06

    IPC分类号: C07D211/60

    CPC分类号: C07D211/46

    摘要: What is described is a process for preparing compounds of the general formula (I) in which R1, R2 and R3 independently of one another represent hydrogen, an alkyl group or an aryl group, wherein compounds of the general formula (II) in which R1 and R2 have the meaning given for formula (I), are reacted with an alkylating agent of the general formula (III) R3X   (III) in which X represents a halogen atom and R3 has the meaning given for formula (I), if appropriate in a solvent.

    摘要翻译: 描述的是制备通式(I)的化合物的方法,其中R 1,R 2和R 3彼此独立地表示氢,烷基或芳基,其中通式(II)的化合物其中R1 和R2具有式(I)给出的含义,与通式(III)的烷基化剂R 3 X(III)反应,其中X表示卤素原子,并且R 3具有式(I)给出的含义,如果合适 在溶剂中。

    Process for preparing quaternary salts of piperidyl esters of mandelic acid
    5.
    发明授权
    Process for preparing quaternary salts of piperidyl esters of mandelic acid 有权
    制备扁桃酸的哌啶基酯季铵盐的方法

    公开(公告)号:US08309732B2

    公开(公告)日:2012-11-13

    申请号:US12418847

    申请日:2009-04-06

    IPC分类号: C07D211/46

    CPC分类号: C07D211/46

    摘要: What is described is a process for preparing compounds of the general formula (I) in which R1, R2 and R3 independently of one another represent hydrogen, an alkyl group or an aryl group, wherein compounds of the general formula (II) in which R1 and R2 have the meaning given for formula (I), are reacted with an alkylating agent of the general formula (III) R3X  (III), in which X represents a halogen atom and R3 has the meaning given for formula (I), if appropriate in a solvent.

    摘要翻译: 描述的是制备通式(I)的化合物的方法,其中R 1,R 2和R 3彼此独立地表示氢,烷基或芳基,其中通式(II)的化合物其中R1 和R2具有式(I)给出的含义,与通式(III)R3X(III)的烷基化剂反应,其中X表示卤素原子,并且R3具有式(I)给出的含义,如果 适用于溶剂。