Process for the electrosynthesis of aldehydes
    1.
    发明授权
    Process for the electrosynthesis of aldehydes 失效
    醛类电合成工艺

    公开(公告)号:US5571400A

    公开(公告)日:1996-11-05

    申请号:US515911

    申请日:1995-08-16

    申请人: Thomas Karcher

    发明人: Thomas Karcher

    CPC分类号: C25B3/04

    摘要: The invention relates to a process for the electrosynthesis of an aldehyde of the formula (I)R.sup.1 --CHO (I)in which R.sup.1 is an aryl or alkyl radical, by electrolysis of an organic halide of the formula (II)R.sup.1 --Hal (II)in which Hal is chlorine or bromineand of an N,N-disubstituted formamide of the formula (III) ##STR1## in which R.sup.2 and R.sup.3 are alkyl or aryl in a cell which is equipped with electrodes and has a chamber, the anode being self-consuming and being composed of a reducing metal, wherein the cathode is composed of lead.

    摘要翻译: 本发明涉及通过电解式(II)的有机卤化物R1-Hal(其中R 1为芳基或烷基)的式(I)R 1 -CH CHO(I)的醛的电合成方法, II)其中Hal是氯或溴,以及式(III)的N,N-二取代的甲酰胺其中R 2和R 3是配备有电极的电池中的烷基或芳基,并且具有 阳极是消耗性的并且由还原金属组成,其中阴极由铅组成。

    Method for preparing 3-alkyl-2,6-dichloroacylanilides by electrolytic
debromination of 3-alkyl-4-bromo-2,6-dichloroacylanilides
    3.
    发明授权
    Method for preparing 3-alkyl-2,6-dichloroacylanilides by electrolytic debromination of 3-alkyl-4-bromo-2,6-dichloroacylanilides 失效
    3-烷基-4-溴-2,6-二氯酰苯胺的电解脱溴制备3-烷基-2,6-二氯代酰苯胺的方法

    公开(公告)号:US5558754A

    公开(公告)日:1996-09-24

    申请号:US346031

    申请日:1994-11-29

    申请人: Thomas Karcher

    发明人: Thomas Karcher

    摘要: A method for preparing 3-alkyl-2,6-dichloroacylanilides by electrolytic debromination of 3-alkyl-4-bromo-2,6-dichloroacylanilides.A method for preparing a 3-alkyl-2,6-dichloroacylanilide of the formula I ##STR1## in which R.sup.1, R.sup.2 are, independently of one another, (C.sub.1 -C.sub.4)-alkyl, by bromoalkylacylanilides of the formula II ##STR2## in which R.sup.1, R.sup.2 have the above-specified meaning, being electrolytically debrominated.

    摘要翻译: 通过3-烷基-4-溴-2,6-二氯代酰苯胺的电解脱溴制备3-烷基-2,6-二氯联苯酰苯胺的方法。 制备式I的3-烷基-2,6-二氯草酰苯胺的方法其中R 1,R 2彼此独立地为(C 1 -C 4) - 烷基,由式II的溴烷基酰基酰苯胺 > II,其中R1,R2具有上述含义,被电解脱溴。