Zirconium oxide complex anchored on boehmite nanoparticles as highly reusable organometallic catalyst for C–S and C–O coupling reactions

Abstract

Boehmite nanoparticles were prepared by a simple and inexpensive procedure in water using commercially available materials without inert atmosphere. Then, the surface of the boehmite nanoparticles was modified using 3‐mercaptopropyltrimethoxysilane and subsequently zirconium oxide was supported on the modified surface. Zirconium oxide supported on boehmite nanoparticles (Pr.S‐ZrO@boehmite) was characterized using scanning electron microscopy, Fourier transform infrared spectroscopy, thermogravimetric analysis and inductively coupled plasma technique. The catalytic application of Pr.S‐ZrO@boehmite was studied in C–O and C–S coupling reactions for synthesis of valuable compounds such as ether and sulfide derivatives. All products were obtained in good to excellent yields and the catalyst could be recovered and reused several times without significant loss of catalytic efficiency. Furthermore, zirconium oxide is rarely used as catalyst for cross‐coupling reactions.

New Complex of Copper on Boehmite Nanoparticles as Highly Efficient and Reusable Nanocatalyst for Synthesis of Sulfides and Ethers

“…The strong bands adsorption above 3000 cm −1 are due to symmetrical and asymmetrical stretching vibrations of surface hydroxyl groups . The adsorption bands at (1630) and (1174 and 1075) cm −1 are corresponded to nitrate impurity and hydrogen bands respectively . Al−O vibration in structure of BNPs was observed at 480, 633 and 743 cm −1 .…”

“…[36] The adsorption bands at (1630) and (1174 and 1075) cm À 1 are corresponded to nitrate impurity and hydrogen bands respectively. [46] AlÀ O vibration in structure of BNPs was observed at 480, 633 and 743 cm À 1 . [56] Functionalization of BNPs with organic layers was confirmed by CÀ H bands vibrations that is appeared at 2859-2927 cm À 1 , [22] which these peaks do not observed in FT-IR spectrum of BNPs.…”

“…When the amount of Cu I -TEDE-TA@BNPs was reduced to 30 mg, the yield of product was decreased to 75% (entry 7). Also Among the different solvents [46] 2 160 85 Oil Oil [46] 3 24 h 30 Oil Oil [46] 4 120 58 Oil Oil [46] 5 460 57…”

“…In this regards, we are reporting a new complex of Cu I on modified boehmite nanoparticles as efficient and reusable catalyst for the synthesis of sulfides and diaryl ethers via C−S and C−O cross coupling reactions. Because sulfides and diaryl ethers are starting material for the synthesis of organic compounds, drugs, and biological materials . Also, sulfides are starting materials for the synthesis of sulfoxides and sulfones …”

“…Because sulfides and diaryl ethers are starting material for the synthesis of organic compounds, drugs, and biological materials. [46][47][48][49][50][51][52][53][54][55] Also, sulfides are starting materials for the synthesis of sulfoxides and sulfones. [56]…”