Poly(N,N′-dichloro-N-ethylbenzene-1,3-disulfonamide) and N,N,N′,N′-Tetrachlorobenzene-1,3-disulfonamide as Novel Reagents for the Synthesis of N-Chloroamines, Nitriles and Aldehydes - Ghorbani-Vaghei, Ramin; Veisi, Hojat (Synthesis, 2009)