Carbocation

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  • Importance Of Substitution And Elimination Reactions

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    Substitution and Elimination Reactions Substitution reactions replace a functional group with a new group. These reactions compete with elimination reactions in which a group is eliminated and a π (pi) bond is formed. Substitution reactions occur when a nucleophile is added to an electrophile/substrate. Elimination reactions occur when a base is added to an electrophile/substrate. The electrophile must contain a leaving group to be considered a substrate. Alkyl Halides Alkyl Halides are the common

  • 2-Methylcyclohexanol Molecules

    1590 Words  | 7 Pages

    INTRODUCTION: The polymerization of sugar molecules, such as sucrose and fructose, involves the dehydration of two sugar monomers to produce a peptide C=O bond, and the release of water. This common biomolecular mechanism has been greatly studied within the science disciplines. For Biologists, they’ve studied how nature does it, and for Chemist, they’ve studied how we mimic, and manipulate it. Chemist refer to such chemical reactions, in which atoms or groups of atoms are removed from a molecule

  • Experiment 5 : The Bomination Of An Alkene

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    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

  • Sn1 Reaction Lab Report

    697 Words  | 3 Pages

    nucleophilic substitution mechanisms and are a first-order process. Meaning that the reaction forms a carbocation intermediate and that the concentration of the nucleophile does not play a role in the rate-determining step, which is the slowest step in the reaction. All of the SN1 reaction mechanisms in this procedure can react two different ways. The expected mechanism for these reactions would be that the carbocation would react with the weak nucleophile nitrate, attaching the nitrogen to the positively charged

  • Alkyl Chloride Lab Report

    546 Words  | 3 Pages

    insoluble second layer.The formation of alkyl chloride is indicated by the appearance of turbidity in the reaction mixture.The reaction that occurs in the Lucas test is an SN1 nucleophilic substitution which depends on carbocation stability. Only alcohols that can generate stable carbocation intermediates will undergo the reaction. As the reactivity of alcohols with halogen acids is in the order tertiary > secondary > primary, the time required for the appearance of turbidity will be different for primary

  • Taking a Look at Nucleophilic Reactions

    2127 Words  | 9 Pages

    electron pair donor and an electron pair acceptor (2). There are two types of ways that nucleophilic reactions occur. There is the SN1 reaction and the SN2 reaction. An SN1 is a two-step reaction that occurs when a molecule first forms a carbocation. Once the carbocation is formed, the nucleophile comes in and attaches to the molecule (2). Below is a general reaction scheme of an SN1 reaction: Below is the mechanistic scheme of SN1: In an SN2 reaction, it is a one-step reaction and occurs when a

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

    1581 Words  | 7 Pages

    Ashley Droddy CHM 235LL-Monday, 3/19/2012 & 3/26/2012 Part A: Dehydration of 1-butanol & 2-Butanol/Part B: Dehydrobromination of 1-Bromobutane & 2-Bromobutane Abstract The objective of this experiment is to successfully perform a dehydration of 1-butanol and 2-butanol, also dehydrobromination of 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

  • E1 Reaction

    1358 Words  | 6 Pages

    must be dehydrated with the help of an acid through a reaction known as an E1 mechanism.1 The first step of an E1 reaction is the formation of a carbocation intermediate. This carbocation is produced by the removal of a halogen or a substituted group.2 In this experiment, the hydroxy (OH ) group of the alcohol is removed and this produces the carbocation. The OH- group is removed due to the presence of phosphoric acid. The phosphoric acid is used in the process of adding an additional H+ to the OH-

  • The Effect Of Dehydration Of Cyclohexene

    903 Words  | 4 Pages

    E1 reaction is a two-step mechanism which includes the protonation of hydroxyl group and the formation of carbocation intermediate (rate-determining step). Questions: 1. Dehydration of cyclohexanol gives cyclohexene. Draw mechanism for the reaction. 2. What alkene(s) will be produced when each of the following alcohols is dehydrated? a) t-butyl alcohol

  • Lab Report On Methylcyclohexene

    1541 Words  | 7 Pages

    Methylcyclohexene Ashton Krstevski Lab Partner: Micheal O’Daniel Organic Chemistry 1 Laboratory, Indiana University Northwest, Gary, Indiana 46408 October 28, 2016 Abstract: The purpose of this experiment was to practice the functional group transformation procedure. The process of the experiment included the dehydration of 2-methylcyclohexanol in the presence of phosphoric acid and heat. The products that were formed from the reaction were 1-methylcyclohexene and 3-methylcyclohexene. The mass of

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