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
Premium
IR‚ mass‚ and NMR spectroscopy. The rate of reactions‚ and
Premium Chemical reaction Chemistry Ethanol
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)‚
Premium Chemistry Ethanol Acetic acid
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
Premium Purple Carbon Nitrogen
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
Premium Metal Chemical compound Electron
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
Premium Chemistry Nuclear magnetic resonance Drug discovery
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
Premium Water Chemistry Ethanol
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
Premium Carboxylic acid Salicylic acid Acetic acid
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
Premium Chemistry University Research
2013 Date Submitted: March 14‚ 2013 Abstract: The product ratio of N-ethylsaccharin to O-ethylsaccharin that occurred due to alkylation with iodoethane at 80 oC was determined to be 81.5% to 18.5%‚ respectively‚ based on an analysis of the 1H NMR spectrum that was collected. The melting point range of 87.8-94.7 oC also indicated that the mixture was largely composed of N-ethylsaccharin. The more prevalent product structure is: C2H5I C2H5I And/Or And/Or
Premium Nucleophile