An efficient iodine-mediated electrophilic tandem cyclization of substituted 2-alkynylbenzaldehydes with anthranilic acids under basic medium leading to iodo-1,2-dihydroisoquinoline-fused benzoxazinones is presented. Success of the protocol for the reaction of substituted 2-alkynylbenzaldehydes ...

Complexes [In(2Ac4Ph)2]NO3·H2O (1), [In(2Ac4mClPh)2]NO3·1.5H2O (2), [In(2Ac4pClPh)2]NO3·2H2O (3) and [In(2Ac4pIPh)2]NO3·H2O (4) were obtained with N(4)-phenyl-2-acetylpyridine thiosemicarbazone (H2Ac4Ph), and its N(4)-meta-chlorophenyl-(H2Ac4mClPh), N(4)-para-chlorophenyl-(H2Ac4pClPh) and N(...

Groups of germ-free and conventional mice were treated with 2,4′,5-trichlorobiphenyl (triCB) and [35S]cysteine or [35S]methionine, respectively. Control animals received the labelled amino acids only. Conventional mice accumulated significantly more extractable radioactivity both in lung and ki...

In order to account for the origin of the sulphur atom in methyl sulphones derived from polychlorinated biphenyls (PCB), groups of mice were treated with 2,4′-5-trichlorobiphenyl and [35S]cysteine or [35S]methionine, respectively. Control animals received the labelled amino acids only. The radi...

Whole-body autoradiography of 2,4′,5-[14C]trichlorobiphenyl ([14C]triCB) indicated that, whereas there was accumulation of radioactivity in the tracheobronchial mucosa of conventional (C) mice 1–7 days after injection, no such effect was observed in germfree (GF) mice 1 day after injection. At...

The presence of dissolved organic matter (DOM) in aquatic system has an important influence on the phototransformation of organic contaminants through the production of reactive substances, such as hydroxyl radicals (OH), singlet oxygen (1O2), and DOM triplet states (3DOM*) under solar irradiati...

Polychlorinated biphenyls (PCBs) are a group of persistent organic pollutants with confirmed carcinogenicity to humans. Metabolic activation of lower chlorinated PCBs to genotoxic metabolites may involve hydroxylation and further oxidation, and some hydroxylated metabolites may be sulfo-conjugat...

The local structures of rhodium complexes derived from the immobilization of Wilkinson’s complex, RhCl(PPh3)3, on SBA-15 silica functionalized with primary–amine, secondary–amine, or diphenylphosphine groups within the mesoporous channels were characterized by a series of techniques including...

Sodium salts are common in solutions used in electrocoagulation (EC) studies especially in relation to treatment of produced water. However, the influence of sodium salts upon electrocoagulation operating parameters is not well understood. Therefore, a multi-electrode electrocoagulation cell wit...

This study is the first reported research in which microbial flocculant (MBF) was applied to accelerate the formation and strengthen the stability of aerobic granules in sequencing batch reactors. To better evaluate the effects of MBF, poly-aluminum chloride (PAC) was used as a reference. The ma...

Laser Assisted Joining (LAJ) of Aluminum AA5053 sheets with Polyvinyl chloride (PVC) is investigated. The process was performed by means of a diode laser with a maximum power of 200 W. The materials did not show good chemical affinity. Thus, laser sculpturing was performed on the aluminum substr...

Because of its use in on-board hydrogen portable hydrogen-air fuel cell, hydrogen generation based on the reaction between aluminum and water was evaluated. In the present work, the effect of CoCl2 and NiCl2 on aluminum–water reaction was studied. The amount of hydrogen generated linearly incre...

IntroductionSeveral variables have been associated with a better prognosis of periapical surgery. The aim of this study was to evaluate the influence of 2 hemostatic agents on the prognosis of periapical surgery at 12 months.

Rice straw was pretreated with ethylene glycol (EG) and AlCl3 for enzymatic hydrolysis. EG-AlCl3 pretreatment had an extremely good selectivity for component fractionation, resulting in 88% delignification and 90% hemicellulose removal, with 100% cellulose recovered or 76% (w/w) cellulose conten...

The cellulose without and with catalyst (CuCl2, AlCl3) was subjected to pyrolysis at temperatures from 350 to 500 °C with different heating rate (10 °C/min, 100 °C/s) to produce bio-oil and selected chemicals with high yield. The pyrolytic oil yield was in the range of 37–84 wt% depending on...

IntroductionThe aim of this study was to evaluate the efficacy of 2 hemostatic agents in periapical surgery and its relationship with patient- and tooth-dependent variables.

This study investigates the effects of aluminum compound on the binding of admixed chloride in cementitious materials. Three commonly available aluminum compounds, aluminum oxide, aluminum hydroxide and colloidal nano-alumina are applied. The bound chloride content, hydration products and calciu...

Starting from the appropriate azides (4-chlorobenzyl-, 2-thiophenemethyl-, 2-fluorobenzyl-, and 4-fluorobenzylazides) agreeing with the substituent determining four series of derivatives (a–d), some 4-amino-substituted 1,2,3-triazolo[4,5-d]pyridazines (4a–d) corresponding to previously prepare...

Publisher SummaryThis chapter presents the syntheses; the chemical and physical properties; and the applications of 1,2,3-thiadiazines, 1,2,4-thiadiazines, 1,2,5-thiadiazines, and 1,2,6-thiadiazines. Cyclization using hydrazine or hydrazones by the formation of the N–S bond is frequently used f...

The United States Air Force (USAF) operates one of the largest multi-echelon inventory systems in the world. Individual bases hold inventory to meet the demands of their customers at the base. These bases are re-supplied by central depots that are, in turn, re-supplied by vendors. The Air Force ...