Alkene

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  • Experiment 5 : The Bomination Of An Alkene

    1020 Words  | 5 Pages

    Introduction Experiment 5 deals with the bromination of an alkene. It is considered an addition reaction in which bromine is added to an alkene. This breaks double bonds of alkene and forms an alkane. With the removal of the double bond, each bromine atom can now attach to a carbon. In the first part of this experiment, bromine is added to the π bond of trans-stilbene, which results in the formation of vicinal dibromide. Vicinal is a term used to describe two functional groups bonded to two neighboring

  • Methyl Tert-Butyl Alkene Experiment

    1164 Words  | 5 Pages

    In this experiment, the addition of Bromine to an alkene was done. In doing so the solution undergoes a halogen addition reaction, which is a simple reaction where a halogen molecule is added to a double bonded carbon0carbon alkene functional group. In this experiment cholesterol (the alkene used) is dissolved in 2 mL of methyl tert-butyl ether and Bromine (halogen) is added to the solution to create a reaction. To proceed in the reaction Bromine, reddish-brown, solution is added into a solution

  • Essay about Wittig Reaction: Synthesis of Trans-Stilbene

    969 Words  | 4 Pages

    The purpose of this experiment was to perform a wittig reaction, the horner-emmons wittig specifically, reacting an aldehyde with an ylide to make an alkene. This particular variation of the wittig reaction has several advantages: It gives only the trans product; it uses a much milder base that is easier to handle; and it gives a water soluble byproduct which is easy to separate from the product. The reason that these advantages occur is a change in the structure of the ylide. Instead of a tripheylphosphine

  • Part a: Dehydration of 1-Butanol & 2-Butanol/Part B: Dehydrobromination of 1-Bromobutane & 2-Bromobutane

    1581 Words  | 7 Pages

    1-bromobutane and 2-bromobutane to form the alkene products 1-butene, trans-2-butene, and cis-2-butene. The dehydration reactions react under and acid-catalysis which follows an E1 mechanism. It was found that dehydration of 1-butanol yielded 3.84% cis-2-butene, 81.83% trans-2-butene, and 14.33% 1-butene, while 2-butanol is unknown due to mechanical issues with the GC machine. For the dehydrobromination, with the addition of a

  • CHEMISTRY

    5345 Words  | 22 Pages

    Keghan Chapter 8 MULTIPLE CHOICE QUESTIONS Topic: Structure Elucidation 1. An alkene adds hydrogen in the presence of a catalyst to give 3,4-dimethylhexane. Ozonolysis of the alkene followed by treatment with zinc and acetic acid gives a single organic product. The structure of the alkene is: CH3 A) CH3CH=C-CHCH2CH3 (cis or trans) CH3 CH3 B) CH3CH2C=CCH3 (cis or trans) CH2CH3 C) CH3 CH2=CCH2CHCH2CH3 CH3 CH2 D) CH3CH2CCHCH2CH3 CH3 CH3 E) CH3CH2CHCHCH=CH2

  • Lab Report On The Dehydration Reaction Of 2 Methylcyclohexanol And Phosphoric Acid

    1252 Words  | 6 Pages

    of this lab was to carry out a dehydration reaction of 2-methylcyclohexanol by heating it in the presence of phosphoric acid and determining which alkene product would be the major product. Methylcyclohexanols were dehydrated in an 85% phosphoric acid mixture to yield the minor and major alkene product by elimination reaction, specifically E1. The alkenes were distilled to separate the major and minor products and gas chromatography was used to analyze the results and accuracy of the experiment. The

  • The Reaction Of The Alcohols

    1511 Words  | 7 Pages

    The alcohols 1-propanol and 2-pentanol were converted into alkyl halides through a certain series of steps. The first step was reflux, and the purpose of reflux is to add energy to the solution and not lose any solution to evaporation. This energy helps initiate the acid-catalyzed dehydration reaction and also promotes rearrangement. The next step was distillation, which functioned to separate liquids based on boiling points. The distillation utilizes boiling points to separate the alkyl halide products

  • Advantages Of Olefins

    701 Words  | 3 Pages

    Olefins are usually produced in large quantities in the petrochemical industry. The separation of olefins from paraffins is of primary importance to the chemical industry. Olefin/paraffin mixture is difficult to separate due to their similar physical and chemical properties such as molecular sizes and boiling point. The most common method for olefin/paraffin separation in the industry is the distillation process, commonly known as cryogenic distillation which is considered as one of the most energy-intensive

  • The Synthesis Of 13 Butadienes

    732 Words  | 3 Pages

    CHAPTER TWO RESULTS AND DISCUSSION 2.1 Synthesis of 1,3-butadienes Dienes can be synthesised from aldehydes and ketones using the Wittig reaction. The Wittig reaction facilitates the synthesis of new carbon-carbon double bonds at specific locations in aldehydes and ketones (Bernard & Ford, 1983). The overall reaction mechanism is shown in Figure 1. Protocols for synthesising 1,3-butadienes from aldehydes and ketones have been established in the literature. The synthesis protocol proposed by

  • Solid Phase Of Polymer Bound 2

    955 Words  | 4 Pages

    A 1,3,4-thiadiazole library was constructed by solid-phase organic synthesis. The key step of this solid-phase synthesis involves the preparation of polymer-bound 2-amido-5-amino-1,3,4-thiadiazole resin by the cyclization of thiosemicarbazide resin using p-TsCl as the desulfurative agent, followed by the functionalization of resin by alkylation, acylation, alkylation/acylation, and Suzuki coupling reaction. Both the alkylation and acylation reactions chemoselectively occurred at the 2-amide position

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