1. INTRODUCTION “The first mention of acylation related to the later Al2Cl6 method of
Friedel and Crafts appeared in 1873 in a preliminary communication by Grucarevic and …

Silica-supported boron trifluoride (BF3· SiO2) was used as an efficient and reusable catalyst
for the synthesis of highly diversified tetrahydropyridines by one-pot multicomponent …

Reversible ArSE aroylation has been observed in the reaction of 2, 7-dimethoxynaphthalene
(1) with 4-chlorobenzoic acid/acid chloride 2 with the aid of discrete acidic mediators. The …

Abstract Dual ArSE aroylation of 2, 7-dimethoxynaphthalene proceeds with distinct
susceptibility and regioselectivity depending on the Lewis acid. The TiCl4-mediated reaction …

Phosphorus pentoxide supported on silica gel or alumina (P 2 O 5/SiO 2, P 2 O 5/Al 2 O 3)
has been used in many organic transformations as versatile solid catalysts. These catalysts …

The production of β-lactamases is an effective strategy by which pathogenic bacteria can
develop resistance against β-lactam antibiotics. While inhibitors of serine-β-lactamases are …

Abstract Acid catalysts including Ni, Ag and Fe-loaded zeolites of different structures were
prepared either via cationic exchange or impregnation techniques from pristine H-zeolites …

A series of highly diversified 3‐aroylmenadiones was prepared by a new Friedel–Crafts
acylation variant/oxidative demethylation strategy. A mild and versatile acylation was …

Phosphorus pentoxide supported on silica gel (P2O5/SiO2) has been used as an efficient
and reusable catalyst for the one‐pot pseudo four‐component synthesis of 2, 4, 5 …

A facile synthesis of hexagonal α-zirconium phosphate (ZP) nanoparticles as an effective,
eco-friendly and recyclable solid acid catalyst was studied. Polyvinylpyrrolidone (PVP) and …