yield and 4.2% yield respectively‚ product 7 was white with a 42.5% yield‚ and product 8 was golden with a 78.7% yield (Table 1). Refer to Figure 1 for TLC plates and Table 1 for the isolated products’ associated melting point ranges‚ IR‚ MS‚ and 1H-NMR data. The mechanisms for each synthetic step is presented in Scheme 1 to Scheme 5. Refer to Scheme 6 for the general scheme with possible side products. Discussion: The observed color for all the products matched the literature‚ product
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Structural Elucidation The synthesized compound was structurally characterized by IR‚ NMR and mass spectropho-tometer. An IR spectral study was done with Shimadzu Corporation‚ Japan. An NMR spec-tral study was done with Bruker Fourier- NMR spectrometer. Mass spectra of the samples were recorded on a Waters e 2695-Waters 3100 instruments with ESI-PMT arrangement as the mode of ionization and type of detector respectively
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Affects of Hydrogen Peroxide Equivalents on Green Synthesis of Adipic Acid. Andrew R. Glessman*‚ Chase W. Turner‚ Audra Cokain‚ Jacob Kindred‚ Darryl Watkins Department of Chemistry and Chemical Biology‚ IUPU‚ 402 N. Blackford St‚ Indianapolis‚ IN 46202 aglessma@umail.iu.edu April 25‚ 2014 Figure _______________________________________________________________Abstract- The synthesis of adipic acid has been a growing topic of discussion due to the harmful impact it has on the environment
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benzyltriethylammonium chloride has both hydrophilic and hydrophobic properties‚ it could cross the phase boundary and facilitated the transport of the hydroxide ion from the aqueous phase to the organic phase. Expected spectral changes in IR and 13C-NMR Procedure To begin‚ 0.324g of cyclohexene was mixed with 1 ml of 50% aqueous sodium hydroxide‚ 1ml of chloroform and 0.040g of the phase transfer catalyst benzyltriethylammonium chloride. The reaction was stirred and heated at 40 degrees Celsius
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Article pubs.acs.org/jmc Thiazolopyridine Ureas as Novel Antitubercular Agents Acting through Inhibition of DNA Gyrase B Manoj G. Kale‚† Anandkumar Raichurkar‚†‚∇ Shahul Hameed P‚†‚∇ David Waterson‚†‚○ David McKinney‚∥ M. R. Manjunatha‚† Usha Kranthi‚† Krishna Koushik‚† Lalit kumar Jena‚† Vikas Shinde‚† Suresh Rudrapatna‚† Shubhada Barde‚† Vaishali Humnabadkar‚‡ Prashanti Madhavapeddi‚‡ Halesha Basavarajappa‚‡ Anirban Ghosh‚‡ VK Ramya‚‡ Supreeth Guptha‚‡ Sreevalli Sharma‚‡ Prakash Vachaspati
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time to dry the product with the vacuum filter—since we had to evacuate the building due to the fire alarm. If we were able to vacuum filter our product more‚ the percent yield would be close to 100%. 1. Assign the peaks in your NMR spectrum of your salicylic acid. See NMR spectrum on back 2. Assign the peaks in the IR spectrum of your salicylic acid. The IR spectrum was not performed since we ran out of time due to the fire alarm. 3. What was the purpose of the hydrochloric acid? Methyl salicylate
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configuration is predominantly. Finally‚ hydrolysis of the ester then provides (S)-ibuprofen in a relatively high yield. all reaction were monitored by TLC at room temperature with appropriate solvent system which states in experiment section. IR‚ 1H-NMR‚ 13C-NMR‚ polarimetry and melting point range were used to define the product and its purity. Introduction Racemic mixture of ibuprofen is sold in the market‚ however only the (S)-enantiomer is responsible for the desired therapeutic effects. 1 Although
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cm-1‚ 3060.90 cm-1‚ 1597.38 cm-1‚ and 1489.64 cm-1‚ which helped to testify whether the identity of the product matched the expected triphenylmethanol. The identity of the product being correct was further confirmed by way of both proton and carbon-13 NMR spectra. This is due to the fact that both spectra yielded peaks that contained the main structural residues‚ alcohol and aromatic groups‚ of triphenylmethanol. The final yield of pure triphenylmethanol was 8.04 grams‚ resulting in a percentage recovery
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From our H1-NMR spectrum‚ there are five major peaks‚ and these peaks are located at 2.0 ppm‚ 6.7 ppm‚ 7.4 ppm‚ 8.2 ppm‚ and 9.0 ppm. The splittings associated with those peak positions are singlet‚ doublet of triplets‚ doublet of triplets‚ singlet‚ and singlet‚ respectively
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2.5. Characterization Methods 1H–NMR and 13C–NMR spectra of HPPP‚ BOMP and HVPA were taken in CDCl3 on Bruker DPX–300 MHz spectrometer using tetramethylsilane (TMS) as an internal standard. FT–IR spectra of the synthesized compounds‚ HPPP‚ BOMP‚ HVPA and photocrosslinked polymers were recorded on Perkin-Elmer system 2000 (4000–400 cm–1) spectrometer‚ using KBr pellets. Medium pressure mercury vapour lamp to the power output of 125W/cm2 was used for the photocrosslinking study. The viscosity of the
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