Condensations ofm- andp-nitrobenzaldehyde with seven different amides are reported, most of the products being new. Thep-isomer seems to undergo condensation in the shortest time, the m-being intermediate. Thep- also gives the best yields. There is a clear indication of the influence of the particular position occupied by the nitro-group on the ring of the aldehyde molecule. The influence of the different groups associated with the amido group in RCONH2 is even more obvious. The 2:4-dinitrobenzaldehyde, on the other hand, does not appear to condense.