Ethyl acetate

lab, 430 mg of ammonium acetate, 960 microliters of ethyl acetoacetate, and 36% wt. aqueous formaldehyde were added to a 10 mL round bottom flask and allowed to heat to 80°C with constant stirring. After 10 minutes, a solid and wet product was formed. Vacuum filtration was then used to filter the product. Recrystallization methods were then completed using 95% ethanol in order to isolate the pure…

6. SUMMARY AND CONCLUSION 6.1 SUMMARY The current study deals mainly with phytochemical and pharmacological investigation of traditionally used medicinal plant Enicostemma littorale Blume. A perusal of the literature revealed that only fragmental information was available on this plant species regarding cytoprotective potential and immunohistochemistry. In addition the exact molecular mechanism of action of this plant species active compound swertiamarin is unknown and remote. Hence this study…

IONIC LIQUIDS Introduction:- Ionic liquids are actually salts that are liquid in state, normally referred to compounds that have melting point below an arbitrary temperature i.e. 100° C. Unlike some other ordinary liquids like water and gasoline, that are composed of neutral species while ionic liquids are composed of ionic species and ionic intermediates commonly known as “ionic fluids” and “liquid electrolytes”. In ionic liquids there is a species that has a delocalized species and the other…

achieved by using a separatory funnel and three different solvents, 4M HCl which separated the caffeine, deionized water which separated the acetaminophen, and 5% wt/vol NaHCO3 which separated the aspirin. Once the solution of the crushed tablet and ethyl acetate was mixed with a solvent in the funnel two immiscible layers will form. In the case of the aspirin separation, the carboxylic component will be attracted to the basic NaHCO3 layer, effectively separating it from the other components.…

Celsius. Sulfuric acid (0.25 mL, 4.62 mmol) was added last, and the black solution was allowed to heat for 45 minutes. After cooling slightly, the flask was placed in an ice bath for 6 minutes before 3.0 mL of ethyl acetate was added and the solution was filtered. A large amount of ethyl acetate was added to the flask to rinse the product and finish separation from the red pyrylium salt from the blue solution. [After drying, a 1H NMR in acetonitrile will be taken as well as a UV-VIS spectra from…

flasks containing a 200 g sized recipe of Corn Grit Agar(CGA). TR-S1 endophyte was incubated at room temperature at 26-28C for 21 days. Fungal metabolites were then extracted by acetone which was then partitioned with ethyl acetate and methanol respectively. TLC analysis of the ethyl acetate fraction revealed the characteristic blue spots of polyketides with vanillin/sulfuric spraying reagent as well as the positive results with Dragendorff’s reagent. Using silica gel column chromatography run…

Krokodil: The face of America's new heroine Carrie Schenk Psychology 341 Liberty University Krokodil: The face of America's new heroine Krokodil, (pronounced croc-o-dill) is becoming one of America's newest killers. It was first introduced in Siberia, Russia in 2002 (Thekkemuriyi, John, & Pillai, 2013) and has since made its way to the US. It originated in Russia as a way for people who were already addicted to heroine to get a cheaper high with the same effects. Because heroine…

Progesterone levels in fur seals (Arctocephalus forsteri) are used to predict pregnancy rates and ultimately generate population estimates. However, progesterone levels are difficult to track and predict in the early stages of pregnancy. Researchers believe the increased progesterone from pregnancy comes from the corpus luteum, the placenta, or both. The purpose of this study is to detect pregnant and nonpregant females by creating a standard classifying system of detecting progesterone in early…

Abstract The primary goal for this laboratory experiment was to synthesize, purify, and identify p-nitroacetanilide using acetanilide as the starting material. To test for the purity and identification of our desired product, we gathered data from: Thin Layer Chromatography (TLC), Melting Point (MP) range, Infrared (IR) spectrum, Gas Chromatography Mass Spectroscopy (GC-MS), and Proton Nuclear Magnetic Resonance (1H NMR). TLC plate indicated the formation of our pure product due to the…

16.16 mmol), PdCl2 (dppf) (0.164 g, 26.38 mmol), and potassium acetate (KOAc) (2.5 g, 26.38 mmol) were added to a Schlenk flask and kept under vacuum for 10 min. Under an argon flow, anhydrous 1, 4‐dioxane (40 mL) was added to the resulting mixture, and the mixture was stirred at room temperature for 30 min, heated at 80 °C, and further stirred for 20 h. The resulting mixture was quenched by adding water and extracted with ethyl acetate (100 mL). The combined organic layers were washed with…