The reactions of various phenyl-substituted ditertiary phosphines and arsines with chloramine have been shown to result in the formation of double-chloramination products in the presence of ammonia. In some cases, monochloramination products could be isolated using ammonia-free chloramine. The new compounds obtained have been characterized by their elemental analyses and infrared and proton magnetic resonance spectra. © 1969, American Chemical Society. All rights reserved.