Cyanide‐Catalyzed Conjugate Addition of Aryl Aldehydes: 4‐OXO‐4‐(3‐PYRIDYL)BUTYRONITRILE
reactant: 107.1 g. (1.001 mole) of 3‐pyridinecarboxaldehyde
product: 4‐oxo‐4‐(3‐pyridyl)butyronitrile
product: R1 = C
6
H
5
, R2 = R3 = H
product: R1 = C
6
H
5
, R2 = H, R3 = CH
3
product: R1 = C
6
H
5
, R2 = CH
3
, R3 = H
product: R1 = R2 = C
6
H
5
, R3 = H
product: R1 = 4‐ClC
6
H
4
, R2 = R3 = H