Solid State Regeneration of Carbonyl Compounds from Oximes and Semicarbazones with Poly [N-Bromo-Benzene-1,3-Disulfonylamide]

Abstract

Poly [N-bromo-benzene-1,3-disulfonylamide] [PBBS] is a novel and efficient reagent for the conversion of oximes and semicarbazones under solid state to their corresponding carbonyl compounds in high yields.

Poly(N,N′-dibromo-N-ethyl-benzene-1,3-disulfonamide) and N,N,N′,N′- tetrabromobenzene-1,3-disulfonamide as effective catalysts for conversion of aldehydes to 1,1-diacetates and acetals

“…Our interest in the application of poly-(N,N'-dibromo-Nethyl-benzene-1,3-disulfonamide), [PBBS] and N,N,N',N'-tetrabromobenzene-1,3-disulfonamide [TBBDA] [35], in organic synthesis has been previously reported [31][32][33][34][35][36][37][38]. We now report a mild and efficient method for conversion of aldehydes to 1,1-diacetates, in the presence of TBBDA and PBBS with acetic anhydride.…”

Poly(N,N′-dichloro-N-ethyl-benzene-1,3-disulfonamide, N,N,N′,N′-tetrachlorobenzene-1,3-disulfonamide, poly(N,N′-dibromo-N-ethyl-benzene-1,3-disulfonamide, and N,N,N′,N′-tetrabromobenzene-1,3-disulfonamide catalyzed formylation of amines and alcohols using ethyl formate under microwave irradiation

“…The reactions were performed in high yields and catalyzed with novel reagents PCBS, TCBDA and PBBS, TBBDA [34][35][36][37][38][39][40] (Scheme 1).…”

N,N ′-Diiodo-N,N′-1,2-ethanediylbis(p-toluenesulfonamide) as an Efficient Catalyst for Acetylation of Alcohols, Phenols, Amines, and Thiols Under Solvent-Free Conditions

“…[33][34][35][36][37][38] In continuation of these studies, in this article we report the application of N,N -Diiodo-N,N -1,2-ethanediylbis(p-toluenesulfonamide) (NIBTS) 39 as a recyclable catalyst for acetylation of alcohols, phenols, amines, and thiols with acetic anhydride, at 80 • C under solvent-free conditions in excellent yields (Scheme 1). …”