In this experiment‚ we used methyl benzoate from the last experiment with HNO3 and H2SO4 to synthesize methyl 3-nitrobenzoate. First we added methyl benzoate to 12 mL cooled conc. Sulfuric acid in a flask. In a separate flask‚ we made a solution of 4 mL conc. Sulfuric acid and 4 mL nitric acid and then added dropwise to the solution of methyl benzoate in an ice bath on a stir plate while maintaining the temperature of reaction between 5-15 °C. After the addition was complete we took the flask out
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ultraviolet light absorption by organic molecules. 7. Identify the order of reactivity of aromatic compounds in Electrophilic aromatic substitution. 8. Classify alcohols and amines as primary‚ secondary or tertiary. 9. Interpret infrared and 1H NMR spectra for: a. Aldehydes b. Ketones c. Carboxylic acid d. Derivatives of carboxylic acid. 10. Identify each of the following terms: a. Neutral amino acid b. Acidic amino acid c. Basic amino acid d. Amino acid in its zwitterion form. e. Dipeptide
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electronegativity‚ HOMO/LUMO energies‚ chemical potentials‚ density of states and detonation properties of trans and cis configurations of azocubane. All properties have been obtained using the B3LYP functional and 6-31G(d‚p) basis set. Also‚ IR‚ UV-Vis‚ CD and NMR spectra of the structures were simulated. The volumes of the structures computed to get the densities of the molecules. All calculations carried out in gas phase at temperature 293.15 k and pressure 1 atm. The simulation results revealed that the trans
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physical data. 75th ed. (1994-95 ed. Boca Raton‚ FL: CRC Press‚ 1994. Print. 4 "Structural Biochemistry/Proteins/NMR Spectroscopy - Wikibooks‚ open books for an open world." Wikibooks. <http://en.wikibooks.org/wiki/Structural_Biochemistry/Proteins/NMR_Spectroscopy>. 5 UW Madison. "C-13 Chemical Shifts." UW Madison - Department of Chemistry. <http://www.chem.wisc.edu/areas/reich/handouts/nmr-c13/cdata.htm>. 6 "Chemical Structure Drawing Search - eMolecules." Chemical Structure Drawing Search - eMolecules
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Vacuum filter the solid polymer and wash with methanol several times. 8. Air-dry the polymer or dry the polymer in a vacuum oven at room temperature until constant weight. Step three: Analysis of the polymer. Calculate the % yield of polymer. Record NMR of the sample‚ and run a differential scanning calorimetry to determine Tg. Questions/tasks: 1) Make a risk assessment. 2) Wright polymerization reaction scheme‚ identify the repeating unit 3) Wright detailed mechanism (initiation‚ propagation‚ termination)
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General Papers ARKIVOC 2008 (xi) 131-141 Synthesis and biological evaluation of some new pyrimidines via a novel chalcone series Amit R.Trivedi‚ Dipti K. Dodiya‚ Naresh R. Ravat‚ and Viresh H. Shah* Department of Chemistry‚ Saurashtra University‚ Rajkot (Gujarat)‚ India‚ Pin-360005 E-mail: shah_v_h@yahoo.com Abstract In the present investigation ethyl 2-(4-carboxyphenylazo)acetoacetate 1 on condensation with various aromatic aldehydes in ethanolic NaOH solution yielded the corresponding
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good and bad in our country‚ such as the apartheid museum‚ which helps us to move on and become the united nation that we are today. c) The building that I chose is the Natal Mounted Rifles building on Masabalala Yengwa Avenue‚ formally known as NMR avenue which is opposite the stadiums in Durban. The building was constructed from 1933-1936. The building was commissioned as an airport in 1936 and was named the Stamford hill aerodrome and was Durban’s first airport‚ the original building remains
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at 45 C for 12 hours under an oxygen atmosphere with an equimolar ratio of the three reactants. TLC monitoring of the reaction mixture exhibited formation of a new product‚ which was purified (Table 1‚ entry 1). Identification of its structure by NMR spectroscopy revealed that it was 2-(4-methylbenzoyl)-1-naphthyl N-(tert-butyl)carbamate (4a). Next‚ in order to improve the yield of 4a‚ the effects of different solvents‚ reaction temperatures and times together with the molar ratio of the reactants
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Chemistry 207 (Lab # 1) 9/11/12 Experiment #1: Cooperative Identification of an Organic Solid A. What needs to be done: In this lab‚ one will identify the identity of a colorless organic solid by experimentally finding the physical properties of the solid. Such properties include melting point‚ mixed melting point‚ and IR spectrum. With these properties‚ one will be able to compare their results of the organic solid to see if any other classmates have the same unknown sample. B. Timeline:
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isomer (Figure 4)‚ the trans-4-tert-butylcyclohexanol isomer (Figure 5)‚ or a racemic mixture of Tarnas 2 the two. We will then compare the isomeric composition of the product we yielded in week 2 to commercial 4-tert-butylcyclohexanol via NMR. Figure 1. 4-tert-butylcyclohexanone Figure 2. Sodium Borohydride O H H 3C H 3C Figure 3. Sodium Hypochlorite O B
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