• Chem
    Lab #24- Preparation 4-Methylcyclohexene Introduction: The goals in this lab were to have a reaction occur with 4-methylcyclohexanol and an acid catalyst to form our product of 4-methylcyclohexene via an E1 reaction. This reaction is accomplished by removing the –OH group on 4-methylcyclohexanol...
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  • Dehydration of an Alcohol: Distillation and Gas Chromatography
    Experiment 2: Dehydration of an Alcohol: Distillation and Gas Chromatography Preparation of Methylcyclohexenes Purpose: The basic purpose of this experiment is to carry out the dehydration of an alcohol and isolate the reaction products by distillation. Gas Chromatography will be utilized to analyze...
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  • Random
    Preparation of 4-Methylcyclohexene Background Alcohol dehydration is an acid-catalyzed reaction performed by strong, concentrated mineral acids such as sulfuric and phosphoric acids. The acid protonates the alcoholic hydroxyl group, permitting it to dissociate as water. Loss of a proton from the intermediate...
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  • organic chemistry
    DEHYDRATION OF 4-METHYLCYCLOHEXANOL PURPOSE Perform an acid-catalyzed dehydration of 4-methylcyclohexanol to produce 4-methycyclohexene. TECHNIQUES • Dehydration of an alcohol • Preparation of an alkene • Distillation • Unsaturation tests THEORY An acid-catalyzed dehydration is a common way...
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  • Experiment on Isolating a Neutral Compound from a Mixture Containing an Acid Impurity
    extraction, crystallization and melting point determination, preparations of organic compound and separation of mixtures. The Techniques Students are REQUIRED to read and understand the various techniques that will be covered in the laboratory sessions from the textbook. | Techniques | Page | 1 | Laboratory...
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  • Dehydration Lab Report
    Dehydration of 2-Methylcyclohexanol February 10, 2013 Introduction This experiment was done to demonstrate the practical use of dehydration reactions and produce three different products. Dehydration reactions are reactions that involve the leaving of an “-OH” or “-H” group resulting in the formation...
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  • Dehydration of Methylcyclohexanol
    Compilation of “Dehydration of Methylcyclohexanol” Blog entries: A common Sophomore Organic Chemistry laboratory experiment that has great potential for further research is the acid catalyzed dehydration of simple alcohols. The classic dehydration of 2-methylcyclohexanol experiment that was introduced...
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  • Dehydration of an Alcohol lab report
    Experiment 9-Dehydration of 2-methylcyclohexanol Name______________________________________________________________________ Lab Partner_________________________________________________________________ Lab Day and Time____________________________________________________________ ...
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  • Protonating 4-Methylcyclohexene
    Experiment 41: 4-Methylcyclohexene Introduction: This experiment was a study of protonating a cyclo-alcohol to become a cyclo-ene. In this case 4-methylcyclohexanol was protonated using phosphoric acid to become 4-methylcyclohexene. This demonstrates the loss of an alcohol group by protonation, the...
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  • Decarboxylative Mechanism
    In this experiment, 2-methylcyclohexanol was mixed with phosphoric acid with heat, to produce 3 isomers in one solution. This solution was run through a GC to calculate the product distribution. One isomer was such a rarity that it did not register on the GC. 1-methylcyclohexene accounted for 82.9% of...
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  • Orgo Lab 5
    with an acid to produce alkenes as a product. The product formed is separated through distillation. Because more than one alkene product can result from the reaction, Gas Chromatography is used to analyze the composition of the product mixture. IR spectrometry is also carried out to confirm the product...
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  • Cyclohexanol
    Purpose: To carry out the dehydration of 2-methylcyclohexanol and study the orientation of C=C in the final alkene products. Saytzev°s rule will be tested. Introduction: Alcohols can be dehydrated by using an acid such as sulfuric or phosphoric acid. Water will be eliminated from the molecule and a C=C...
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  • Orgo
    the desk 1. Give the major products from each of the following reactions, clearly showing regiochemistry and stereochemistry whenever applicable a. b. c. d. e. f. 2. Draw structures corresponding to the following names: a) 2,3-Dimethyl-4-octyne b) 3Z,5Z-3,5-Heptadien-1-yne c)...
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  • Dehydration of Methalcyclohexanols
    Dehydration of Methylcyclohexanols Balie Zander Date Conducted: March 27, 2013 Date Submitted: April 3, 2013 Introduction: The purpose of this experiment was to demonstrate the application of Zaitzev’s rule, the Evelyn Effect and the occurrence of an E1 mechanism in an alcohol dehydration reaction...
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  • Alkynes, Alkene, Alkanes, Aromatic
    of alkanes Describe reactions of alkanes Propose a mechanism on free radicals substitution 4. 5. 6. Describe the preparation and reactions of alkenes. 7. Propose mechanism on preparation; dehydration of alcohol 8. Define carbocation, electrophile and Markovnikov’s Rule. 9. Propose mechanism...
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  • Dehydration of Alcohols
    Dehydration of Alchohols Alcohols may be dehydrated under acid_catalyzed conditions to form alkenes. In the presence of Bronsted acids, such as sulfuric and phosphoric acid, dehydrations involve the initial protonation of the hydroxyl group, converting it to an excellent leaving group. Loss of water...
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  • Organic Chemistry Practical Laboratory Manual
    the absence of light to form the corresponding dibromide compound. This reaction can be followed by the disappearance of the brown bromine colour from the reaction medium, as long as the alkene is in excess. 1 Alkanes on the other hand show no appreciable reaction under these conditions. If ...
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  • Dehydration and Gc Lab Report
    product of a β-elimination reaction is the most stable alkene [1].Acid-Catalyzed Dehydration is the elimination of a molecule of water from adjacent carbon atoms. An alcohol can be converted to an alkene by dehydration, which is often brought on by heating the alcohol with either 85% phosphoric acid...
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  • Paper
    ORGANIC CHEMISTRY LABORATORY EXPERIMENTS FOR ORGANIC CHEMISTRY LABORATORY 860-121-02 MW 1:00-4:00 WRITTEN, COMPILED AND EDITED BY LINDA PAAR JEFFREY ELBERT KIRK MANFREDI SPRING 2008 TABLE OF CONTENTS SYNTHESIS OF ASPIRIN 1 MELTING POINT AND CRYSTALLIZATION 2 DISTILLATION 8 EXTRACTION 11 ...
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  • Chemistry of Natural Products
    have also been obtained from other sources. Terpenoids are volatile substances which give plants and flowers their fragrance. They occur widely in the leaves and fruits of higher plants, conifers, citrus and eucalyptus. The term ‘terpene’ was given to the compounds isolated from terpentine, a volatile...
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