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The coupling of divinylbenzene cross-linked polystyrene with 5-chloro-2-nitroaniline followed by oxidative decyanation afforded benzophenone.
C 4225 (OTTO) 5-Chloro-2-nitroaniline, 97% Cas 1635-61-6 - used in the synthesis of 5-(4-substituted piperazin-1-yl)-2-nitroanilines and 5-(4-substituted piperazin-1-yl)benzimidazole-2-carbamates.