| 摘要 |
1,196,728. Diethyl substituted-anilinomethylenemalonates. NORWICH PHARMACAL CO. 6 June, 1969 [22 July, 1968], No. 28862/69. Heading C2C. Diethyl 3,4 - dialkoxyanilinemethylenemalonates are prepared in reacting diethyl dimethylamine methylene malonate with a 3,4- dialkoxy aniline in the presence of an acid, e.g. acetic acid. In an example the dimethoxy, diethoxy and diisobutoxy compounds are prepared. |
