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- In an E2 mediated elimination reaction of an alkyl halide (H-X) using NaOCH3 as base, which of the following statement is not true? O The reactivity order for alkyl halides (RX) is tertiary secondary> primary. O The rate of reaction = k2 (alkyl halide] [NaOCH₂] O The reaction occurs in a single step. O The rate is independent of the leaving group.Please explain the steps of this synthesis. Identify SN1, SN2, E2 or E1. Identify the nucleophile and electrophilesGive one example of elimination reaction (E2) type. Show the reactants materials and the product. Draw the reaction mechanism?
- 9. Draw the structure of product, substrate or condition in the following reactions (should clearly show the stereochemistry). Ме 12, KI, NaHCO3 OH a) Ме C3H13021 Ме BH3 "Me b) then H2O2, NaOH OH Ме Br2, H20 c)Provide the synthetic route for the following reaction? (CH3)2CHCH2Br ----> (CH3)2CHCH2CH2CH2NH24. Complete the phrases with one or more of the following terms: SNI, SN2, E1, E2. a) The reaction takes place in two or more steps. b) The reaction goes through a carbocation. c) The rate determining step has two reactants. d) The rate is independent of the concentration of nucleophile or base. e) Zaitsev's rule is often applicable to the products..
- ?Which of the following is not a nucleophile اخترأحد الخیارات а. NH3 -b. Br c. FeBr3 d. CH30CH3Use the reaction given below to answer the following questions. A CH₂OH B H₂O+ C + CH3NH3* D a) What are the approximate pKas of compounds A and B? b) The reaction given above is irreversible. Give a detailed explanation of the reaction and reaction mechanism. Your explanation should indicate your knowledge of the reactivity of carboxylic acid derivatives.Consider reaction 1 and reaction 2 shown below. Reaction 1 Reaction 2 CH,CH AICI, CH₂COCI AlCl3, H₂O dimethylated benzenes and other products a) Both reaction 1 and reaction 2 proceed via a similar mechanism. Name the type of mechanism undergone b) Suggest why substituted benzene from reaction 1 gives a mixture of organic products while substituted benzene from reaction 2 gives only one mono-substituted product. c) The organic product in reaction 2, acetophenone, produce the corresponding cyanohydrin under certain experimental conditions. (i) State the reagents and conditions involved. (ii) Name the type of mechanism undergone. (iii) Predict and draw the product of corresponding cyanohydrin. d) State the importance of cyanohydrin.
- Q10. For each of the following reactions (a-b), predict whether the substitution is more likely to occur following an Sn1 or Sn2 mechanism; explain your reasoning. Draw the products of each nucleophilic substitution paying particular attention to the stereochemistry of carbon 1. a) Br, CH3 MeOH H3C b) Br NaOH 1 DMF* H3C *N,N-dimethylformamideConsider the attached E2 reaction What happens to the reaction rate with each of the following changes?[1] The solvent is changed to DMF. [2] The concentration of −OC(CH3)3 is decreased. [3] The base is changed to −OH. [4] The halide is changed to CH3CH2CH2CH2CH(Br)CH3. [5] The leaving group is changed to I−.Answer the question below the reaction. ta The reaction above proceeds through which type of mechanism? SN2 SN1 E1 E2 OH + Excess NH4C1 H₂SO4 + H₂O