4-Chlorobenzyl cyanide → 2-(alpha-Cyano-4-chlorobenzylidene)-1-methylpyrrolidine

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Reaction Steps

Boil 22.7 g of 2,2-diethoxy-1-methylpyrrolidine, 19.8 g of 4-chlorobenzylcyanide and 90 ml of benzene for 1 hour under reflux and with stirring. Distil off the volatile constituents under a vacuum. After trituration with a little diethyl ether, filter off the residue to obtain 20.8 g (68% of theory) and the title compound (m.p. 71° to 72° from isopropanol).

Provenance & Evidence