Ww. Zajac et al., N-BENZYLIDENEBENZENESULFONAMIDE AS A BENZALDEHYDE EQUIVALENT IN THE KNOEVENAGEL REACTION, Synthetic communications, 24(3), 1994, pp. 427-432
N-Benzylidenebenzenesulfonamide was shown to be a useful benzaldehyde
equivalent in the Knoevenagel Reaction for cyana - containing active m
ethylene compunds. The intermediate beta-N-benzenesulfonylamino carbon
yl derivatives from other active methylene compounds failed to undergo
elimination.