Suzuki reaction

030 Abstract In order to turn hydrogen peroxide into water and oxygen by using enzyme called a catalyst. To determine the effects of temperature and substrate concentrations we preformed an experiment testing the effects on the catalyst enzyme reaction. The hypothesis for our first experiment was if the substrate concentration is larger than the catalyst enzymes activity will be faster as well. The result followed suit with our first experiment and supported our hypothesis. The hypothesis for…

This experiment is to be used to determine the era of which the composition and thus the density of the penny changed, and what the other metal besides copper has made up the composition since 1962. First, ten pennies from three different time periods (1995-1999, 2000-2004, 2005-present) were gathered. All ten pennies from a specific time were weighed together on an analytical balance. Then, a fifty mL graduated cylinder was filled with twenty mL of water, which was recorded as the initial…

Title The Copper Reaction Cycle demonstrated in the experiment shows that copper can transform into different states of matter, while still conserving mass and returning back to its original room temperature solid state. Authors Makenzie Roybal * and Erin Wimberley Section CHEM 111-554 Introduction A topic of allure to many scientists is how high levels of copper intake can result in the disruption of human metabolism, and how it can degenerate the biological well being of ecosystems. The…

nitrotyrosine is being recognized as a crucial independent marker of cardiovascular disease (Peluffo et al. 2007). Our primary goal for this experiment was to synthesize, purify, and identify p-nitroacetanilide. First, we performed a series of chemical reactions to yield our desired product. Then, to test for purity and to furthermore scrutinize the molecular of our desired product, we used Gas Chromatography-Mass Spectroscopy (GC-MS), Proton Nuclear Magnetic Resonance (1H NMR) spectroscopy,…

sulfato-iron (II) complex is believed to be more reactive than just iron to reaction with H2O2…

Synthesis of oleyl 9,(12)-hydroxy-10,(13)-oleioxyoctadecanoate (OLHYOODT) (4) The reaction mixture was heated on a magnetic heater and stirrer until it reached the experiment temperature; catalyst sulfuric acid (SA) and desiccant of silica gel (SG) were added to the mixture at that moment to remove the water during the reaction. The reaction temperatures were held constant within a range of ±1°C. A mixture of HYOODA 3 (5 g; 0.01 mol), oleyl alcohol (OL) (10 g; 0.02 mol) in a 250-mL three-neck…

same diffusion ability no matter with them chain length 3. Degradation reactions occur at the same rate for all samples regardless of the nature and molecular weight of chains 4. The increase in temperature during mixing due to the shear viscose heat and the heat released from the chain extension reaction is ignored. 5. The isocyanate groups react only with the hydroxyl groups of PET. 6. The kinetic constant of the reactions lead to connecting the four chains together, is half of k1. 7. Until 3…

DCE with PPh3 and I2 at room temperature for 19-24hr. These reactions proceeded in mild condition and gave 2x to 80-97% yield by column chromatography. Then, we attempted to apply the method of Friedel–Crafts acylation in order to synthesis of acylated oxazoles from 5-methoxy -2-phenyl oxazole (*). The normal conditions which used Lewis acid such as AlCl3 or TiCl4 with TFAA in DCE did not proceed the acylation, however, the reaction of introducing trifluoroacetyl group at the C4-position of…

A. i) The rate of a reaction is the change of a substance’s concentration per units of time. The reaction rate of an experiment is dependent on many things including concentration, presence of a catalyst, and, most importantly, temperature. Temperature and reaction rate are directly correlated, which means that as one increases, so does the other. It is a general approximation that the rate of a reaction will increase by a factor of two for every 10°C jump in temperature. Increased temperature…

There are so many chemical reactions and it is important to classify a chemical reaction to understand the reaction and predict the products. In this lesson, we will discuss the definition and go over examples of a combination reaction. !!!What is a Combination Reaction? Putting furniture together, combining ingredients to make something delicious – these things can be fun activities and we look forward to the results. Each individual component is not very exciting by itself. However, if we…