abstract |
1,270,784. Diaryl dicyano ethanes. AKZO N.V. 7 July, 1970 [8 July, 1969], No. 32929/70. Heading C2C. [Also in Division C3] Compounds of the formula where Ar is a substituted or unsubstituted aryl group and R is a hydrocarbon group when n is 0 or 1 or R is an amino group with 1 or 2 hydrogen atoms or hydrocarbon groups when n is 0 are prepared by subjecting a compound of the formula to oxidative coupling. |