for the following products
2,2'-(5-Methyl-1,3-phenylene)di(2-methylpropionitrile) | 3,5-bis-(2-Cyanoprop-2-yl)toluene | alpha,alpha,Alpha',alpha'-tetramethyl-5-methyl-1 ,3-benzenediacetonitrile | Pentamethyl-1,3-benzenediacetonitrile and alpha,alpha,alpha',alpha'-5-Pentamethyl-1,3-benzenediacetonitrile
