The nucleophilic substitutioii of lialogeii ill. I-lC-2-iiitrohalogenobeiizeiies has been studied q~ iaiititatively by Berliner and A210iiackLo in the solvolysis of 4-R-2-nitrobroinobeiizeiies in piperidine; by Miller and coworkers, l 1 by Bunnett and coworkers'? and by Eliel and Nelson13 in the reactions of 4-It-2-nitrochlorobenzenes with sodiuiii methoxide iii methanol. Bunnett and Snipes14 studied the