Poly(N,N′-dibromo-N-ethyl-benzene-1,3-disulfonamide), N,N,N′,N′-tetrabromobenzene-1,3-disulfonamide and novel poly(N,N′-dibromo-N-phenylbenzene-1,3-disulfonamide) as powerful reagents for benzylic bromination

Cobalt manganese oxide nanoparticles as recyclable catalyst for efficient synthesis of 2‐aryl‐1‐arylmethyl‐1H‐1,3‐benzimidazoles under solvent‐free conditions

“…Generally, in the past we have used a new nano‐zinc catalyst with Co and Mn in the synthesis of bis(indolyl)methanes . In continuation of our works and in the application of this catalyst, we showed that the zinc‐supported nanocatalyst is usable, generalizable and also efficient for the synthesis of benzimidazole derivatives.…”

N,N,N′,N′‐Tetrabromobenzene‐1,3‐disulfonamide Catalyzed Synthesis of New Spiro[chroman‐3,2′‐chromeno[2,3‐b]furan]‐2,4,4′‐(3′H)‐trione Derivatives

“…In continuation of our interest in the application of N,N,N ′ ,N ′‐tetrabromobenzene‐1,3‐disulfonamide (TBBDA) in organic synthesis , herein, we report a simple and efficient process for synthesis of new spiro dihydrofuran‐fused coumarin framework via tandem reaction of 4‐hydroxycoumarin with aromatic and heteroaromatic aldehydes in the presence of TBBDA and pyridine at room temperature in good to high yields under solvent‐free conditions (Scheme ).…”

A highly stable and efficient magnetically recoverable and reusable Pd nanocatalyst in aqueous media heterogeneously catalysed Suzuki C–C cross‐coupling reactions

“…In this context, we considered that Fe 3 O 4 supporting ethyl cyanide groups (Fe 3 O 4 /Ethyl‐CN) would serve as an efficient and robust support material for metal ions. Our interest in this area has prompted us to explore the immobilization of PdCl 2 on the surface of Fe 3 O 4 /Ethyl‐CN. Here, we report a convenient procedure for synthesizing a recoverable Fe 3 O 4 /Ethyl‐CN/Pd nanocatalyst for the Suzuki coupling reaction in a green medium (H 2 O–EtOH).…”