发明名称 |
PRODUCTION OF METHYLISOPROPYLIDENEAMINOXY-ACETOXYACETATE |
摘要 |
Prodn. of methoxycarbonylmethylene isopropylideneaminooxyacetate (I) without isolation of intermediates comprises: (a) converting acetone (II) with hydroxylammonium sulphate (III) and NaOH into acetone oxime (IV) in the presence of toluene and/or extracting (IV) from the reaction mixt. with toluene; (b) treating the toluene soln. with NaOH and removing H2O; (c) removing the toluene by distillation and replacing it with a dipolar aprotic solvent; (d) reacting the crystal mash obtd. with sodium chloroacetate (V) and then treating the reaction mixt. contg. sodium isopropylideneaminooxyacetate (VI) with methyl chloroacetate (VII); and (e) isolating (I) in a known manner. |
申请公布号 |
JPH08225505(A) |
申请公布日期 |
1996.09.03 |
申请号 |
JP19950272462 |
申请日期 |
1995.10.20 |
申请人 |
BASF AG |
发明人 |
MIHIYAERU KAIRU;YOOZEFU BUAARU |
分类号 |
C07C249/08;C07C249/12;C07C251/60 |
主分类号 |
C07C249/08 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|