H Isobutyraldehyde, 2-methylbutyraldehyde and cyclohexanecarboxaldehyde were employed as the aldehydic components. Cyanoethylation of isob~ tyraldehyde~*~* 4 has been disclosed in the patent literature. The reaction of acrylonitrile with cyclohexanecarboxaldehyde was not exothermic in contrast to the other aldehydes used. A novel spirane derivative, 2-azaspiro (5.5) hendecane, was obtained from 1-(2'-cyanoethyl) ...
![2-AZA-SPIRO[5.5]UNDECANE Structure](https://image.chemsrc.com/caspic/166/180-48-3.png)