n,n-diethylethanaminium-2-(sulfooxy) ethyl sulfate was synthesized and used as  an efficient, green, and recyclable catalyst and solvent for the nitration of aromatic compounds by nitric acid at 80oc

background: compounds present in both green and black teas have been shown to inhibit the growth and activity of bacteria associated with mouth infections. the aim of this study was to assess the effects of green tea leaves extract on the aerobic mouth bacterial load. methods: a total of 25 volunteer female students, aged 20-25 years, were selected and then evaluated by green tea extract and mo...

β-Cyclodextrin sulfuric acid as a green Lewis acid catalyst has been applied for the preparation of bis(indolyl)methanes, tris(indolyl)methanes and 3,3'-diindolyloxindole derivatives by the condensation of indoles with various carbonyl compounds in aqueous media with high to excellent yields.

4-dodecylbenzenesulfonic acid (dbsa) has been shown to be an efficient, mild, green, stable and chemoselective brønsted acid catalyst for the synthesis of 1, 1-diacetates (acylals) of aldehydes under solvent-free conditions. the mild condition, eco-friendly, excellent yields, short reaction times and using an easily available, inexpensive and reusable catalyst are important features of this met...

β-cyclodextrin sulfuric acid as a green lewis acid catalyst has been applied for the preparation of bis(indolyl)methanes, tris(indolyl)methanes and 3,3'-diindolyloxindole derivatives by the condensation of indoles with various carbonyl compounds in aqueous media with high to excellent yields.

bio-directed synthesis of nanoparticles is an interesting field of rapid advancement for biologists,chemists and materials scientists, especially in light of efforts to find out green methods of inorganicmaterial synthesis. in the present study, green synthesis of platinum nanoparticles (ptnps) using sheepmilk is reported for the first time. by adjusting the concentrations of chloroplatinic aci...

abstract background and objective: alzheimer’s disease (ad) is a weakening neurodegenerative disorder typified by increased b-amyloid (ab) deposition and neuronal dysfunction causing to impaired learning and memory. among proposed risk factors, induced oxidative stress is a main cause for incidence of the disease. the aim of this study was to determine the effects of the rosmarinic acid on lear...

In this article, simple, convenient synthesis of 2-aryl-1- arylmethyl-1H-1,3-benzimidazole (1,2-disubstituted benzimidazoles) via condensation of 1,2-phenylenediamine and aromatic aldehydes using SBA-Pr-SO3H as a nanoporous solid acid catalyst in green protocol was reported.

in current research relationship between eicosapentaenoic acid (epa) and docosahexaenoic acid (dha) (% of total fatty acids) in edible tissue (muscle) of green tiger shrimp (penaeus semisulcatus) and lobster (thenus orientalis) collected from persian gulf, was investigated with some biological factors (total length, total weight and sex). results showed that in all two species, epa and dha perc...