The ammonium acetate-acetic acid catalyzed condensation of acetophenone with malononitrile'in refluxing benzene solution was observed to proceed at a convenient and reproducible rate, the theoretical amount of water being removed in twelve hours. Furthermore, the rate of reaction was not markedly affected by small changes in catalyst concentration. Since a number of related compounds were desired for work in progress in ...
![2-[1-(4-nitrophenyl)ethylidene]propanedinitrile Structure](https://image.chemsrc.com/caspic/013/26088-96-0.png)
![Propanedinitrile,2-[1-(4-chlorophenyl)ethylidene]- Structure](https://image.chemsrc.com/caspic/138/3111-60-2.png)