The synthesis of [3H] and [14C]o- chlorobenzylidenemalononitrile (CS)

Article abstract of DOI:10.1002/jlcr.2580140118

Using similar procedures, the syntheses of [2-¹⁴C]-malononitrile and malono [¹⁴C]nitrile are described. Condensation with o-chlorobenzaldehyde affords [2-¹⁴C]-o-chlorobenzylidenemalononitrile and o-chlorobenzylidenemalono [¹⁴C]nitrile respectively. The syntheses of [³H]o-chlorobenzaldehyde and o-chlorobenz[ ¹⁴C]aldehyde, again by a common sequence of reactions, is described and with malononitrile gives [³H]-o-chlorobenzylidenemalononitrile and [1-¹⁴C]-o-chlorobenzylidenemalononitrile.