Date Performed: February 27, 2015 = 82 oC Vanillyl alcohol OH O H OCH3 NaBH4 H2O OH OCH3 OH NaOH H3BO4 Vanillin M.W. Reduction of vanillin to vanillyl alcohol. If the mixture does not dissolve after 5 minutes of continuous stirring add another 5 mL NaBH4 and cool the solution to just below 15°C. The Lucas reagent is an aqueous solution of strong acid... ...Alcohol Facts and statistics ( www.niaaa.nih.gov-2012 ) Global Burden of alcohol abuse, In 2012, 3.3 million deaths, or 5.9 percent of all global deaths (7.6 percent for men and 4 percent for women), were attributable to alcohol consumption.. Alcohol contributes to over 200 diseases and injury-related health conditions, most notably alcohol dependence, liver cirrhosis, cancers, and injuries. 11/16/11 Study Questions: β-Naphthol 5. 1. Introduction H O HO H 3CO1. It was added in three to four portions over a period of 3 minutes. Benzyl Alcohol 2. ...Lab 12: Reduction of an Aldehyde to a Primary Alcohol by Use of NaBH4Purpose(i)To select an appropriate solvent system. Add potassium dichromate solution to each of the test tube. C6H5OH + KMnO4 C6H4O2 + MnO2 + H2O + K+ An important class of alcohols are the simple acyclic alcohols, the general formula for which is CnH2n+1OH. Reduction describes the gain of electrons or decrease in oxidation state of an atom, ion or molecule. The Purpose of this experiment is for the students to learn how to use sodium borohydride to reduce benzil to its secondary alcohol product via reduction reaction. Record the weight directly into your notebook to the maximum accuracy of the balance. 3C10H7OH + FeCl3 Fe(C10H7O)3 + 3HCl In addition, underage drinking contributes to a range of acute consequences, including injuries, sexual assaults, and even deaths. Loading... Autoplay When autoplay is enabled, a suggested video will automatically play next. The second is the addition of hydrogen to a bond and thirdly, the replacement of a more electronegative atom with carbon or hydrogen. 3BrC6H5OH + FeCl3 Fe(BrC6H4O) 3 + 3HCl This lab report recaps the procedure and results of the lab. 1. Consequences of Underage Alcohol Use: Research indicates that alcohol use during the teenage years could interfere with normal adolescent brain development and increase the risk of developing an AUD. Used to determine the primary and... StudyMode - Premium and Free Essays, Term Papers & Book Notes, Internal and External Pursuasive Communication. Rank the alcohols based on the 1-fastest and 3-slowest/no reaction. Oxidation can be observed through the loss of electrons or an increase in oxidation state by an atom, ion or molecule. ...Acid Test/ Jones Oxidation The H- of the NaBH4 reduces one or both carbonyl groups in benzil and then the acidification processes results in a diol or two secondary alcohols as products. CHO OCH OH Vanillin CH20H OCH3 OH Vanillyl alcohol MW 152, mp 81 -83 (a, 4-dihydroxy-3-methoxytoluene) A. Lucas Test What is the purpose? Sodium Borohydride Reduction: Diphenylmethanol from Benzophenone Picric Acid C2H5OH + HCl + ZnCl2 C2H5Cl + H2O C2H5OH + KMnO4 CH3COOH + H2O + MnO2 +K+ Lab Section 13 p-Bromophenol If only one carbonyl group is reduced, the product results in a racemic mixture of benzoin. Equation Using the color-coded syringe provided in the hood, add 2 mL of 1 M NaOH to the vanillin in the conical vial. 3. C6H5CH2OH + KMnO4 C6H5COOH + H2O +MnO2 + K+ 3. Vanillin is an aromatic compound that can be isolated from the cured fruit of Vanilla planifolia. Hence, this reaction can be used to distinguish tertiary alcohols form primary and secondary alcohols. The suffix -ol appears in the IUPAC chemical name of all substances where the hydroxyl group is the functional group with the highest priority; in substances where a higher priority group is present the prefix hydroxy- will appear in the IUPAC name.
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