Spectroscopy (nujol) are carbonyl peaks (1773.4 cm-1)‚ Sp3 C-H peaks (2921.5 cm-1)‚ Sp2 C-H (3000 cm-1). The carbonyl peaks prove the presence of an acid anhydride. H’NMR (CDCL3) 6.287ppm (t‚ 2H)‚ 3.674ppm (m‚ 2H)‚ 3.483ppm (m‚ 2H)‚ 1.697ppm (m‚ 2H). 13C NMR (CDCL3) 172.291‚ 135.913‚ 53.109‚ 47.572‚ 46.288. Next‚ hydrolysis of the anhydride took place. The anhydride was combined with distilled water in a 125 mL Erlenmeyer flask and heated. After twenty minutes the solid is partially dissolved and removed
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IR‚ mass‚ and NMR spectroscopy. The rate of reactions‚ and
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was recrystallized in aqueous EtOH (70%) to give pure products. Selected spectra: 3 -(2′-benzothiazolo)-2‚3-dihydro-2-(4-chlorophenyl)-quinazolin-4(1H)-ones ( Table 1 Entry 1): m.p 229-239 oC; IR (KBr): υ = 3335‚ 1634‚ 1502‚ 1406‚ 1254‚ 740cm-1; 1H NMR (400 MHz‚ DMSO-d6): δ = 6. 81 (t‚ 1H‚ J = 8 Hz)‚ 6.85 (d‚ 1H‚ J = 8 Hz)‚ 7.30 (d‚ 2H‚ J = 8 Hz)‚ 7.36 (t‚ 3H‚ J = 8 Hz)‚
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UV-Vis spectra was recorded for the colorless sample. The solution was irradiated using a lamp resulting in a purple solution and the UV-Vis spectrum was retaken. UV (): 524.92nm ε colourless (45.2M-1cm-1) coloured (760M-1cm-1) 1H NMR (300MHz‚ CDCl3) δ 7.26 (30H‚ m) 13C NMR DEPT (75MHz‚ CDCl3) δ 166.5‚ 149.0‚ 138.11‚ 137.9‚ 134.4‚ 134.4‚ 132.7‚ 132.01-126.13‚ 112.38. Results and Discussion The triphenylimidazole dimer that was synthesized displayed a melting range of 199.8-200.3 ºC which is higher
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Arene Molybdenum lab Introduction: Organometallic chemistry is the study of chemical compounds that contain carbon atoms bound to a metal atom. Organometallic compounds can contain main group elements‚ or more metallic elements such as zinc or carbon. These compounds tend to have carbon atoms bound to the metal center by σ-bonds. Alternatively‚ transition metals can be involved in the compound‚ which leads to a variety of interesting and diverse chemical characteristics. For example‚ a promising
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DISCIPLINE OF PHARMACEUTICAL CHEMISTRY DRUG DESIGN AND DISCOVERY BY: xxxxxxx Introduction A drug is a substance that we used mostly in our daily lives. It is a chemical substance with physiological effects when ingested or introduced into our bodies. The response produce can either be beneficial or harmful. Toxins and poisons can be classified as drugs. This report the term ‘drug’ is for medicinal or pharmaceutical purposes. Drugs used to prevent or treat diseases. Drug design
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and indeed there is a very small multiplet peak with integration equal to one hydrogen at 5.32 ppm; since the HCl hydrogen is labile and thus would most likely not show up as a clean singlet on the NMR spectrum‚ there is strong evidence in favor of bupropion hydrochloride as the major product. The 13C NMR spectrum is unable to show the presence of HCl since no carbon is present in the molecule‚ but it does agree well with what would be expected from just
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obtained: 0.250 g 5. Volume of water used as recrystallizing solvent: 2 mL 6. Mass of purified salicylic acid: 0.134 g 7. Percent yield of purified salicylic acid from reaction: 63.5% 8. Melting point of purified product: 158-160 oC 9. Name of NMR solvent used and its chemical shifts: Acetone-d6‚ the chemical shifts are 29.9 and 206.7 for 13C Questions: 1. 2. The phenol group of methyl salicylate is a weak acid‚ therefore it reacts very swiftly with a
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Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction Unknown Letter: B 23 April 2013 Academic Integrity Statement: “Experimental data may be collected with other students in organic chemistry labs. However I understand that sharing information required for a lab report (including but not limited to word processing or spreadsheet files‚ calculations‚ graphs‚ conclusions and additional problems at the end of the lab report) with other students is a violation of the University
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a seperatory funnel which resulted in a gas formation which was controlled with a condenser attached to a gas vacuum. The resulting mixture was then washed to remove excess acids and bases and rotovapped. DEET was synthesized from the experiment as NMR and IR data show strong peaks comparable to the literature values expected for DEET. The percent yield of the product at 56.1% could have been higher by adding more of the limiting reagent toluic acid. Introduction: In this experiment DEET is synthesized
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