Experiment 1: Preparation of 1-Bromobutane and Reactivity of Alkyl Halides Objective: The purpose of this lab is to prepare 1-bromobutane from 1-butanol in an acid-catalyzed substitution reaction. While the reaction would be expected to occur as SN2 due to the primary nature of the substrate‚ because H2SO4 is used as a solvent‚ the conditions are very polar and the reaction can proceed via an SN1 reaction. The main objective is to obtain test results to determine the mechanism of the reaction
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the product that you would expect in each of the condensation reactions. Procedure: Describe what was done in each part of the experiment that you worked on. Results: Theoretical yield and percent yield for the condensation reaction.. Proton spectra of the condensation products. Propose structures that are consistent with the NMR spectra of each of the reaction
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Free Red Bull were not obtained because analysis of those compounds required a higher degree of expertise than can be offered for this lab and will be identified by process of comparison‚ elimination and two dimensional spectral analysis where both protons and carbon 13 are examined to identify and quantify a compound that does not show up on a one dimensional NMR spectrum. This experiment will allow students to gain a better understanding of a Nuclear Magnetic Resonance‚
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Synthesis‚ Recrystallization of β-D-Glucose Pentaacetate from its Original D-Glucose and it comparison with literature though Melting point‚ TLC‚ IR‚ 1H and 13C NMR Abstract: The synthesis of the product: β-D-glucose pentaacetate is done though the acetylation using acetic anhydride with D-glucose with the help of sodium acetate. The recrystallization of the product is done though a polar solvent like water. The Result of this experiment has a percentage yield of 61% and analytical methods
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After the lab period a H NMR spectrum was given by TA. The data that was collected during the lab helped to provide the information for the questions in the lab manual: IR and NMR spectrometer measurements to identify compound and the number of protons and signals‚ mixed melting points and TLC Rf values in order to find possible matches with other students‚ melting point of own compound to make the list of tabulated MP of all students. Data: 1) Melting point of compound given # 444: 129
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Abstract:The Wittig Reaction is a nucleophilic addition in which an alkene is formed as a product. Both the E and Z isomers of the alkene result. Substituents on the aromatic aldehyde affect the E/Z ratio of products that form. In this experiment‚ a nitro group was used as the substituent in the ortho‚ meta and para positions‚ with benzaldehyde as the control. Each of the four aldehydes reacted with (carbethoxymethylene) triphenylphosphorane to produce ethyl cinnamate‚ ethyl-3-(2-nitrophenyl)acrylate
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INTERNAL ANALYSIS (FINANCIAL ANALYSIS) Financial position of Proton Ratio’s 2005 2006 2007 2008 2009 Profit margin 5.215 % 0.599 % -12.58 % 3.284 % -4.653 % Return on assets 5.00 % 0.562 % -8.486 % 2.531 % -4.25 % Return on equity 0.0753 % 0.00796 % -0.113 % 0.0341% -0.059% Receivable turnover 6.046 times 6.268 times 3.932 times 5.115 times 6.00 times Avg collection period 60 days 57 days 92 days 70 days 60 days Inventory turnover 8.8 times 5.6 times 3.7 times 5.1 times 4.7 times Fixed asset
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Protecting health‚ safety and wellbeing In the workplace‚ you are in a position of trust in relation to all service users. It is important to understand that not all service users can protect themselves from abuse and neglect therefore they would be vulnerable and you have to make sure that the service user is not being exploited or unjustly treated. You should always be able to tell your manager how you have made sure that your actions were safe and anything that you say to the service user was
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radiations including photons‚ electron beams‚ proton beams and neutron beams. Also‚ the treatment regimes are classified as external radiation therapy‚ internal radiation therapy or brachytherapy and systemic radioisotope therapy. This report elicits the global radiation therapy market with focus on key regional markets like North America‚ EMEA‚ Asia Pacific and Latin America. Also‚ industry developments like development of LINACs‚ rapid Arc therapy and proton therapy; growth drivers including rising
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ketone via hydride addition is that product is entirely a racemic mixture (McMurry 696). After the initial reaction the product was isolated using a series of vacuum filtrations‚ ether extractions‚ and rotorary evaporations‚ before being analyzed via proton NMR spectroscopy. Results and Discussion: The table listed below as Table 1 lists the starting amounts of each of the chemicals present in the reaction flask‚ along with their formula mass. Compound: Moleculear Mass (g/ mol) Mass
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