Abolfazl Hosseini

KF/Clinoptilolite, an effective solid base in Ullmann ether synthesis catalyzed by CuO nanoparticles

Employing KF/Clinoptilolite as an efficient base the cross-coupling reactions of various phenols with aryl iodides could be successfully carried out in the presence of copper oxide nanoparticles. The C–O coupling products were obtained in moderate to good yields (62–87%) for a variety of substrates.

Old Reagent, New Results: Aromatization of Hantzsch 1,4-Dihydropyridines with Supported Bismuth Nitrate under Microwave Irradiation in Solventless System

Hantzsch 1,4-dihydropyriines were rapidly and efficiently oxidized using bismuth nitrate supported onto silica gel under microwave irradiation.

KF/Clinoptilolite: an efficient promoter for the synthesis of thioethers.

Potassium fluoride impregnated on natural zeolite as a new solid base system effectively catalyzes the coupling of thiophenols with electron-deficient fluoro-, chloro- and bromo-arenes in DMSO. This versatile and efficient solid base has been demonstrated to afford the corresponding desired products in good to excellent yields. This procedure provides a convenient, efficient and practical method for the preparation of diaryl thioethers.

Green and Efficient Method for the Iodination of Phenols in Water

In this article, green conversion of phenols to the corresponding iodide derivatives is reported. The reactions were conducted in water, using potassium iodide as the source of iodine and potassium ferrate as the oxidizing agent. The selected phenols were successfully iodinated in good to excellent yields in mild and non-toxic reaction conditions.

Fast microwave-assisted oxidation of 1,4-dihydropyridines with FeCl3.SiO2

Pyridine derivatives are easily obtained in high yields by microwave-promoted rapid oxidation of the corresponding 1,4-dihydropyridines with ferric chloride hexahydrate and silica gel under solvent-free conditions.

LiAlH4/silica chloride as a new chemoselective system for reduction of carbonyl compounds and phosphine oxides

LiAlH4/silica chloride system was used as an efficient and chemoselective reductant for organic substrates. The reduction of phosphine oxides was achieved with this system. Good chemoselectivity in reduction of aldehydes and ketones in the presence of other carbonyl compounds was observed.

Iodination of Activated Aromatic Compounds Using Nanostructure Solid Acid Catalyst

Abstract Nanoporous silica anchored with sulfonic acid groups effectively catalyzes the iodination of aromatic compounds. The reaction was performed in water using hydrogen peroxide as oxidant. The recyclability of catalyst in green media significantly contributes to the environmental friendliness of the procedure. GRAPHICAL ABSTRACT

A Simple and Effective Approach to the Via One-Pot Reactions in Water

Abstract Water-accelerated synthesis of organic target molecules has been used as a key method for the preparation of phosphoryloxy phosphonate derivatives. Condensation reactions of acid chlorides with dialkyl (aryl) phosphites in the presence of N-methyl imidazole in water have been developed as efficient and clean green synthetic procedures for the preparation of phosphoryloxy phosphonates in high yields. This synthetic protocol provides rapid access to novel and diversely substituted phosphoryloxy phosphonate derivatives. GRAPHICAL ABSTRACT

CCDC 1844941: Experimental Crystal Structure Determination

Related Article: Afsaneh Pilevar, Abolfazl Hosseini, Marina Sekutor, Heike Hausmann, Jonathan Becker, Kevin Turke, and Peter R. Schreiner|2018|J.Org.Chem.|||doi:10.1021/acs.joc.8b01392