Poly(N,Nʹ-dichloro-N-ethyl-benzene-1,3-disulfonamide, N,N,Nʹ,Nʹ-tetrachlorobenzene-1,3-disulfonamide, Poly(N,Nʹ-dibromo-N-ethyl-benzene-1,3-disulfonamide, and N,N,Nʹ,Nʹ-Tetrabromobenzene-1,3-disulfonamide Catalyzed Formylation of Amines and Alcohols Using

A simple, rapid, and efficient procedure for formylation of primary and secondary amines and alcohols using ethyl formate catalyzed with poly(N,Nʹ-dichloro-N-ethyl-benzene-1,3-disulfonamide (PCBS), N,N,Nʹ,Nʹ-tetrachlorobenzene-1,3-disulfonamide (TCBDA), poly(N,Nʹ-dibromo-N-ethyl-benzene-1,3-disulfonamide (PBBS) and also N,N,Nʹ,Nʹ-tetrabromobenzene-1,3- disulfonamide (TBBDA) was adopted. The reactions were performed under microwave irradiation with high yields