For each reaction, give the expected substitution product and predict whether the mechanism will be first order (SN1) or second order (SN2): a) 2-chloro-2-methylbutane + CH3COOH b) isobutyl bromide + NaOMe 1-iodo-1-methylcyclohexane + CH:CH,OH
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- 3. For each reaction, give the expected substitution product and predict whether the mechanism will be first order (Sy1) or second order (SN2): a) 2-chloro-2-methylbutane + CH;COOH b) isobutyl bromide + NaOMe c) 1-iodo-1-methylcyclohexane + CH;CH,OHQ1. For each reaction, give the expected substitution product and predict whether the mechanism will be first order (Syl) or second order (SN2): a) 2-chloro-2-methylbutane + CH3COOH b) isobutyl bromide + NaOMe c)l-iodo-l-methylcyclohexane + CH3CH,OHA mechanism for the reaction of bromine with 4,4-dimethylcyclopentene in water is shown below. Which of the following statements about this mechanism is correct? Step 1 Br Br Br + Br Br Step 2 Br ;OH OH2 Br Br XX .. Step 3 + Hо HO:) H. O In Step 1, bromine could add to the other face of the alkene, giving a bromonium ion that is the enantiomer of the one shown. O In Step 2, water could attack the other carbon atom of the bromonium ion, leading to the enantiomer of the product shown. O This mechanism is complete and correct. O In Step 2, water could attack the bromonium ion from the other side, leading to the cis product.
- for each reaction give the expected substitution product and predict wether the mechanism will be first order (SN1) or second order (SN2) a) 2-chloro-2-methylbutane + CH3COOH b) isobutyl bromide + NaOMe c) 1-iodo-methylcyclohexane + CH3CH2OHQ2. What are the products of the following reactions? CH3 (a) CH3CH2-C–CI + OCH,- CH3 ÇH3 (b) CH-C-O + CH-X CH3Q1. For each reaction, give the expected substitution product and predict whether the mechanism will be first order (SNl) or second order (Sy2): a) 2-chloro-2-methylbutane + CH3COOH b) isobutyl bromide + NaOMe c) l-iodo-l-methylcyclohexane + CH3;CH;OH
- Br Brz CH3 CH3 H3C CH2CI2 H3C Br Electrophilic addition of bromine, Br2; to alkenes yields a 1,2-dibromoalkane. The reaction proceeds through a cyclic intermediate known as a bromonium ion. The reaction occurs in an anhydrous solvent such as CH,Cl). In the second step of the reaction, bromide is the nucleophile and attacks at one of the carbons of the bromonium ion to yield the product. Due to steric clashes, the bromide ion always attacks the carbon from the opposite face of the bromonium ion so that a product with anti stereochemistry is formed. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions Br: :Br: .CH3 H3C H3C CH3 Br:The reaction of methylpropene with HBr, under radical conditions, gives two intermediates. Propose a mechanism for the formation of the two products. Propose a mechanism for the following reaction and use electronic factors to account for the formation of a major product: CH2 CH2Br N-Bromosuccinimide (NBS) ho, CCI4 Draw the structure of an antioxidant, Vitamin E free radical and use resonance structures o account for its stability.For each reaction, give the expected substitution product and predict whether the mechanism will be first order (SN1) or second order (SN2): a) 2-chloro-2-methylbutane + CH3COOH b) isobutyl bromide + NaOMe c) 1-iodo-1-methylcyclohexane + CH3CH2OH Q3. 2-Bromopentane, when treated with alcoholic KOH yields a mixture of three alkenes A, B and C. Identify A, B and C. Which is predominant?
- methanol + CH3OH Suppose you were told that the above reaction was a substitution reaction but you were not told the mechanism. Evaluate the following categories to determine the reaction mechanism and then draw the structure of the major organic product. Type of alkyl halide: Type of nucleophile: Solvent: Is the product racemic?How many alkenes are formed by eliminating HCI from 3-chloro-3,4- dimethylheptane in methanol, assuming the mechanism of the reaction is E1? 03 05 04 02Write out the mechanism (intermediate/transition state) for this reaction; Br CH3 NaOCH₂ E₂