The main objective is to obtain test results to determine the mechanism of the reaction and purity of the product. Introduction: The techniques used in this laboratory included reflux‚ distillation‚ and extraction as well as obtaining IR and NMR spectroscopy. The reaction of 1-Butanol to 1-Bromobutane occurs via a substitution reaction. This reaction type can proceed via either the SN1 or SN2 mechanisms. SN2 reactions have a second order rate and proceed in a single step (ie. The leaving group
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Organic Chemistry II Laboratory (ABCT357/ABCT3757) Lab Manual 2014-2015 Lee Hang Wai‚ Alston (alston.lee@polyu.edu.hk) Dr. Lee Cheng Hao‚ Samuel (chenghao.lee@polyu.edu.hk) Organic Chemistry II Laboratory (ABCT357‚ ABCT3757) (Group one) Contact: Alston Lee (alston.lee@polyu.edu.hk) Tuesday 8:30-11:30 ‚ Laboratory: Y1315 Lab supporting staffs: YK Au / Kan Chan/Arnold Demonstrators: Dr. Samuel Lee‚ Alston Lee‚ Fu Wai Chung‚ Guo Shuai‚ Yuen On Ying‚ Sep 16 Tue Acetylation of α-D-glucopyranose (Expt
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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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get an accurate weight. The observed melting point of the product was 164-165°C which is a little lower than the theoretical mp value; this can be attributed to impurities in our product. An IR spectrum was given and analyzed for benzophenone. 1H NMR‚ 13C NMR‚ and IR spectrums were also given for benzpinacol and benzpinacolone and the peaks were analyzed for the purpose of recognizing functional groups and noting any similarities and differences between the compounds that were made. 1.Introduction:
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daidzein‚ and conjugates in rat blood using LC/ES-MS. Journal of Agricultural and Food Chemistry‚ 47:3764-3770. 28. Hurst‚ W. J.‚ 2002. Methods of Analysis for Functional Foods and Nutraceuticals. 2nd Ed. Florida: CRC Press. 29. Jacobsen‚ N.E.‚ 2007. NMR Spectroscopy Explained: Simplified Theory‚ Applications and Examples for Organic Chemistry and Structural Biology. New Jersey: John Wiley and Sons‚ Inc.‚ pg 1-3. 30. Kale‚ M.S.‚ and Ladda‚ K.S.‚ 2013. Isolation‚ characterization and quantification
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Synthesis‚ characterization‚ crystallographic Study and antibacterial activity of sodium butyldithiocarbamate pentahydrate‚ C5H20NNaO5S2 Ayodele T. Odularu a‚ Peter A. Ajibade a‚ Bolhuis‚ A. b a. Department of Chemistry‚ University of Fort Hare‚ Private Bag X1314‚ Alice 5700‚ South Africa. b. Department of Pharmacy and Pharmacology‚ University of Bath‚ United Kingdom. Abstract Synthesis of sodium butyldithiocarbamate pentahydrate‚ C5H20NNaO5S2‚ entailed a one-pot synthesis. The process of synthesis
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the reaction. The crude product was obtained by vacuum filtration. It was then recrystallized to obtain the pure compound. The recrystallized mass I obtained was greater than 50%. The melting point of the purified product ranged from 72oC- 75oC. 1H NMR‚ TLC‚ and IR spectroscopy was also used to
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‘oiling out.’ This could be avoided in the future by maintaining the temperature of the solution below the melting point of the crystals. Post Lab Questions 4.Upon analysis of the 1H NMR spectrum of benzoin it was determined that the peak at 4.6PPM is the proton from the OH. The peak at 5.99PPM is the CH proton. II. Introduction The purpose of this lab was to produce benzoin using thiamine as a catalyst in order to get 2 mols of benzaldehyde to react to form a new carbon-carbon bond according
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macrocycle in to the biphenol station of the Rotaxane. This was supported by NOESY 1H NMR that showed a shift in the peaks in retrospect to Rotaxane solution containing CD3CN (Figure 5.5). Addition of deuterated pyridine (d5-pyridine) neutralised the d-TFA and hence oxidiation of the benzidine residue occurred and the macrocycle had shuttled back to bind to the residue in its favourable conclusions obtained from the 1H NMR spectroscopic studies are supported by room-temperature ultraviolet/visible spectroscopy
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Element name-Helium Element Symbol-He Atomic number-2 Group name or number- Part of the noble gases in group 18 Atomic mass (to nearest thousandth)-4.003 Number of protons-2 Number of neutrons-2 Number of electrons-2 Number of valence electrons-2 List of isotopes-He3 and He4 Electron Configuration-1s2 Discovered By-Pierre Janssen Year discovered-1868 Circumstances of discovery- Janssen discovered helium in 1868 when he was looking in a telescope when he found the yellow spectrum lines of helium
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