Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) Disregarding stereoisomers‚ how many different enols can the β-diketone CH3 COCH 2 COCH 2 CH3 form? A) 3 B) 1 C) 4 D) 0 E) 2 2) Methylamine reacts with acetophenone to yield the: A) imine. B) enamine. C) acetal. D) amide
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Organic Chemistry Experiment - Hydrocarbons Thursday‚ April 12‚ 2007 1:34 PM Purpose: To Identify an unknown Hydrocarbon Procedure: Procedure listed in handout "Organic Chemistry Experiment -- Hydrocarbons" Hazards: Open flame and hydrocarbons are flammable. Equations: 1. . 3. . 4. . 5. . Unknown #: 1B s-6 Hyd-3 (colorless liquid) Data/Observations: Test Bromine addition Alkane Mixture of hexane and dichloromethane was originally clear liquid. After adding 3 drops red color Br2/CH2Cl
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DIFFERENT REACTION WILL YIELDS TO A CONCLUSION OF WHAT IS/ARE THE FACTOR/S OF ELECTROPHILIC SUBSTITUTION ON AN ORGANIC COMPOUND – AROMATIC COMPOUNDS. There are three experiments in this chapter of the laboratory. First is the substitution by bromination. Second is the solvent effect which is dealing in the nature of the solvent. And third is the temperature test. Having this division in the experiment one‚ we can now conclude that substituent in substitution‚ the nature of the solvent polar or
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Experiment 1: Bromination of Acetanilide1 Precautions: Ethanol is flammable Sodium hypochlorite is an oxidizing agent and releases toxic fumes (handle in fume hood) Acetic acid is corrosive‚ harmful if inhaled‚ flammable and can cause burns (handle in fume hood) Gloves are recommended to avoid chemical contact with skin Reaction Scheme: Conversion of acetanilide to p-bromoacetanilide Procedure: To a 125 mL Erlenmeyer flask containing a mixture of 95% ethanol (6 mL) and acetic acid (5 mL)‚ dissolve
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Lab 1: Alkene Addition: Bromination of (E)-stilbene I. Introduction: 1. The purpose of the experiment was to perform an electrophilic addition reaction by using pyridinium tribromide to brominate (E)-stilbene and to identify whether it formed the meso- or racemic product through melting point analysis. 2. This is the mechanism for the bromination of (E)-stilbene. However‚ this is the mechanism for Br2 and in class we us Pyridinium Tribromide instead due to the difficulties associated
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Preparation and Characterization of Alkene Balacanao‚ Gladys A.1‚ Miranda‚ MarilynI2 1 Student (s)‚ Subject/Section‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology; 2 Professor‚ School of Chemical Engineering‚ Chemistry and Biotechnology‚ Mapua Institute of Technology [pic] ABSTRACT The purpose of this experiment is to prepare cyclohexene form cyclohexanol‚ and know the properties of alkene. The first part of this experiment is preparation of cyclohexene
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Electrophilic Aromatic Substitution: Bromination of Aromatic Compounds Introduction: The experiment focuses on finding out what kind of activating effects that four different substituents will have on an aromatic benzene ring. The substituents being tested are aniline‚ anisole‚ acetamide (acetanilide)‚ and phenol. All four of these groups are either para or ortho activating. Bromination is the reaction that will be carried out. The melting point ranges of the final products will be taken in order
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Procedure: 3 drops of phenol soln in test tube + 1 drop FeCl3 soln Aliphatic and Aromatic Hydrocarbons/ Alkenes Bromination in Light (Free Radical Bromination) (Reacts with alkanes) Reagent: Br2 in H2O Observation: decolorization‚ brown ( colorless Procedure: 2 drops of test compound in test tube+ 1 drop 0.05 M Br2 in H2O‚ shake well‚ record observations Bromination in Dark (Electrophilic Addition Halogenation) (Reacts with alkenes) Reagent: Br2 in H2O Observation: decolorization
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Organometallic preparation and addition to carbonyls‚ Wittig reagent preparation and Wittig rxn‚ Wolff‚ H-based nucleophile carbonyl reduction‚ imine formation‚ reductive amination (rxn only)‚ ketal/acetal formation‚ dithiane chemistry (rxn only)‚ alpha-bromination of ketones‚ -COOH properties (the trends on HW4)‚ Fischer‚ acidic/basic hydrolysis of esters/amides/nitriles‚ CH2N2‚ acid chloride formation (rxn only)‚ acid chloride rxns with esters and amides. 2 Rxn of carboxyllic acid derivatives w/organometallic
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or SN2). OH O H H Br H + :Br : SN2 :Br : O H H Br + H2O OH O H Br O + H2O + :Br : SN1 :Br : Br 7. Give the structure of the principal organic product formed by photochemical bromination of methylcyclopropane‚ draw the mechanism of the reaction. Br2‚ h h Br Br H . .Br Br Br Br 2Br . . + HBr Br + .Br
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