A one-pot and simple method for the solvent-free synthesis of chalcones and dibenzylidene alkanones, catalyzed by heterogeneous and nanoporous MCM-41-SO3H catalyst is reported. The products were afforded in most cases with ...

A mild and sustainable three component passerini reaction, in biodegradable deep eutectic solvent based choline chloride:urea (1:2) is described. The reaction proceeds at room temperature involving substituted benzaldehyde, ...

Due to the codon usage and high G+C contentof thetrans-4-proline-L-hydroxylase gene from the Dactylosporangium sp.strain RH1, the whole gene was optimized and cloned into several vectors for expression. In biotransformations ...

In this study, LaxSr1-xFeO3 (x = 0, 0.8) perovskite-type catalysts were prepared by gel combustion method and then 1.0 wt% palladium was loaded on them by a dry impregnation. The catalysts were characterized by XRD, SEM, ...

Two new Schi base ligands, (E)-4-(3-ethoxy-2-hydroxybenzylideneamino) benzoic acid (L1) and (E)-4-(3-methoxy-2-hydroxy-benzylideneamino)benzoic acid (L2), were synthesized and characterized by elemental analyses, FT-IR, ...

SBA-Pr-SO3H was used as green and recyclable catalyst for the synthesis of dihydropyrdo[2,3-d]pyrimidine derivatives by three component one-pot reaction between 6-amino-1,3-dimethyl uracil, aromatic aldehydes and 1,3-dicarbonyl ...

The aim of this paper is optimal operation of a divided-wall column (DWC) based on self-optimizing control (SOC). By now, the proposed SOC methods have been based on linearization of the process. The novelty of this paper ...

The main interaction between furan and zeolites leads to formation of a hydrogen bond between the O atom of furan and the OH groups of zeolites. The present work reports a theoretical study about the structural, vibrational, ...

Here, a series of immiscible displacement processes have been performed on fractured porous medium developed on glass micro-models in order to investigate the role of fracture characteristics on oil displacement efficiency ...

A facile and environmentally benign series of carbamates derived from coumarin were synthesizedThe synthesis of 7-hydroxy-4-methyl-2H-1-benzopyran-2-one(3)was carried out by gearing up resorcinol (1) and ethyl acetoacetate ...

In this work, characterization of Brønsted acidic ionic liquid namely pyrazinium di(hydrogen sulfate){PyH2(HSO42} using 1H and 13C NMR, mass, thermogravimetry(TG) and derivative thermogravimetry(DTG) data is achieved. ...

The mono nitration of phenols and naphthols has been reported in high yields and short reaction times using the task specific ionic liquid based on nitrate ion, 1,4-bis(4-sulfobuthyl)-1,4-diazabicyclo[2.2.2]octane di ...

A green approach for efficient and rapid synthesis of biologically active substituted 3,4-dihydropyrimidin-2(1H)-one(thione) derivatives using nano SbCl5.SiO2as a heterogeneous catalyst under solvent-free conditions is ...