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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literature though Melting point‚ TLC‚ IR‚ 1H and 13C NMR Abstract: The synthesis of the product: β-D-glucose pentaacetate is done though the acetylation using acetic anhydride with D-glucose with the help of sodium acetate. The recrystallization of the product is done though a polar solvent like water. The Result of this experiment has a percentage yield of 61% and analytical methods that are to detect the products are 1H NMR‚ 13 C NMR‚ COSY‚ FTIR (IR)‚ Thin Layer Chromatography (TLC) and
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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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October 6‚ 2013 Introduction: This experiment was focused on the cooperative identification of organic compound by its chemical properties such as: slow melting point‚ mixed melting point‚ Rf values in TLC experiment‚ IR spectrum analysis‚ and H NMR spectra. Such data can provide the the identity of functional groups and the identity of the compound itself. In this experiment students were taking the slow melting point of their unknown compound. The tabulated list of all melting points of all
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The 13C NMR spectrum was useful to help finding the structure of the unknown. It showed six different signals in the spectrum. Signal 1 had an observed peak value of 19.242 ppm‚ and its peak calculated value was 19.1 ppm. This signal was first to most upfield and shielded in the spectrum because of the high electron density of carbon. This signal was agreed to a literature value for a CH3 group between 5-30 ppm. Signal 2 was branched to signal 1‚ and had the same value‚ but it was agreed for the
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obtained‚ extraction techniques were used to extract a crude‚ eugenol‚ and acetyleugenol product sample. These samples were submitted for GC analysis and the normalization area percents were calculated to confirm their purity; for the crude sample it was 93.95% eugenol and 6.05% acetyleugenol‚ for the eugenol sample it was 100% eugenol and 0% acetyleugenol‚ and for the acetyleugenol sample it was 24.84% eugenol and 75.16% acetyleugenol. The IR spectrum was also found for the eugenol and acetyleguenol products
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Isolation of Acetyleugenol (Clove Oil) from Cloves Purpose In this experiment‚ you will obtain the essential oil from cloves by steam distillation. You will then separate a component (acetyleugenol) from the oil by liquid-liquid extraction. Finally‚ you will isolate the acetyleugenol by using a rotovap for reduced pressure distillation‚ which will remove the organic solvent (dichloromethane). Background Whole cloves contain between 14% and 20% by weight of essential oils‚ but
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dichloromethane substance and aqueous The entire substances that are separated into two individual flasks. Then doing the rest of the chemistry experiment and performing all of the necessary techniques (extract the chemical substances Eugonol and Acetyleugenol) from the clove oil. Introduction “The Isolation of Eugenol using the Steam Distillation or the Fractional experiment or often referred as the Liquid- Liquid Extraction. The main goal is the isolate of the chemical substance Eugenol; it’s
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and acetyleugenol‚ will be steam distilled from cloves. These compounds are isolated from aqueous distillate by extraction into dichloromethane. The dichloromethane solution is shaken with aqueous sodium hydroxide‚ which will react with eugenol‚ to yield the sodium salt of eugenol in the basic aqueous layer‚ and acetyleugenol in the organic layer. The basic aqueous layer can be acidified to re-extract eugenol from it. And the organic layer can be dried and concentrated to yield acetyleugenol The
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medicine (local antiseptic and analgesic). Reaction: See flow chart attached Data and observation Substance Amount isolated (g.) Percent recovery (%) Observations Eugenol 0.712 7.12 Large droplet of yellow oil with an aromatic spicy odor. Acetyleugenol 0.528 5.28 Clear to pale yellow oily liquid with aromatic spicy odor. Calculations Percent recovery of eugenol Amt. Eugenol isolated 0.712 g % Recovery = ------------------------------ = -------------- x 100 =
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