Khazaei, Ardeshir, Ramin Ghorbani Vaghei, and Mohammad Ali Zolfigol. 2010. “Poly [4-Vinyl-N,N-Dichlorobenzenesulfonamide], a Useful Reagent for Chlorination of Various Carbanionic Substrates ”. Asian Journal of Chemistry 15 (2):591-94. https://asianpubs.org/index.php/ajchem/article/view/21687.