a. What reagent(s) are needed to synthesize the enamine below. Also, draw the resonance structure(s) for the enamine. b. Predict the product of the reaction between the enamine from part a and ethyl iodide. Also explain why it forms, including any selectivities. Hint: Consider the type of reaction alkyl halides take part in and the resonance structure(s) in part a. Etl
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- In Chapter 18, we will learn about the hydrolysis of acetals to aldehydes and ketones. Four of the seven steps in the mechanism for this process are shown in the conversion of acetal A to hemiacetal E. a.Add curved arrows for each step. b.Draw another resonance structure for C. c.Identify the nucleophile and electrophile in Step [3]. d.Which steps are Brønsted–Lowry acid–base reactions?Please explain the chosen letter. Benzoic acid reacts with conc. HNO3 and conc.H2SO, to give a. o-nitrobenzoic acid b. p-nitrobenzoic acid c. m-nitrobenzoic acid d. p-dinitrobenzoic acid19) Halohydrin formation from an alkene involves: a. Temporary induction of the dipole moment of a halogen gas.b. Electrophilic attack of pi electrons from the double bond.c. Formation of bromium anion.d. Formation of base as a final product.e. Attack of water molecule as a weak acid.
- ) Drow the structure of salicylic acid 2 2) Name aned drow the structure of all possible Chemical (Electrophilic aromatic substitution) reaction of Salicylicacicl namely: a. Halogenation (chlorination or Bromination). b. Nitration. Sulphonation. Friedal caraft Alkylation. e. Frieclal craft Acylation.A. What is scum? Why would it form in in hard water but not soft water? B. (Synthetic) detergents are very similar to soap. In the structures shown below, circle the major difference between a soap and a detergent molecule. Soap OONae Detergent (LAS or linear alkyl sulfonate)17) Which of the following compounds is Aromatic он I II III IV A. I and III В. П and III C. II and IV D. I and IV 18) Which of the following is the least reactive for the electrophilic substitution? A. Toluene B. Fluorobenzene C. Aniline D. Benzene 19) Follow the reaction path and identify the Products X and Y. Benzene + Acetyl chloride AICI:, H2/Pd, Y A. X: Acetophenone B. X: Chlorobenzene C. X: Acetophenone D. X: Acetophenone Y: Acetylhexane Y: Chlorohexane Y: Ethylbenzene Y: Benzoic acid 20) Identify the product (D) in the following reaction B A C NO2 FeBrs + Br, D A. o-Chloronitrobenzene C. A and B B. p-Chloronitrobenzene D. m-Chloronitrobenzene 21) Identify the missing reagents Br `NO2 А. 1: Brz, FeBrs B. 1: HNO3, H2SO4 2: Br2, FeBr3 D. 1: HNO2, H2SO4 2: HBr 2: HNO2, H2SO4 C..1: NBS 2: HNO2, H2SO4
- QUESTION 2 The preparation of a Wittig salt from an alky halide and triphenylphosphine proceeds by a(n) O A. E2 O B. Sn2 OC. E1 O D. free radical O E. Sn1 mechanism. QUESTION 3 Which resonance structure is more reactive as a nucleophile? Ph Ph O A. 1 O B. 2 OC. both are equally reactive Click Save and Submit to save and submit. Click Save All Answers to save all answers. o search F10 F1 F2 F3 F4 F5 F6 23 2 3 4. 7 8 W Y UIWhich or which of the statements given below is correct. I) Maleic anhydride is a carboxylic acid derivative and its reaction with water is a reduction reaction. II) Fumaric acid and maleic acid are stereoisomers of each other III) Since fumaric acid has a more stable structure than maleic acid, its boiling point is higher. A. Solo I B. I and III C. II and III D. I, II, III E. Solo IIIRank the following active methylene compounds in order of decreasing acid strength. H₂C O CEN H3C. O most acidic least acidic Answer Bank CH3 H3C NO₂ H3C O₂N NO₂ CH3
- Why does the solubility of carboxylic acids decreases with the increase in size of alkyl groups? a.)This is because of the equal polarity and hinderance provided by the large alkyl groups to the COOH group from involving in the hydrogen bonding with solvent molecules. b.)This is because of the reduced polarity and hinderance provided by the large alkyl groups to the COOH group from involving in the hydrogen bonding with solvent molecules. c.)This is because of the increased polarity and hinderance provided by the large alkyl groups to the COOH group from involving in the hydrogen bonding with solvent molecules. d.)This is because of the hinderance provided by the large alkyl groups to the COOH group from involving in the hydrogen bonding with solvent molecules.1. Name and draw structures of the alkyl halides and nucleophiles/bases used below.Name and Draw the structures of all possible chemical (Electrophilic aromatic substitution) reactions of p- toludine;a. Halogenation (Chlorination or Bromination)b. Nitrationc. Sulphonationd. Friedal Craft Alkylatione. Friedal Craft Acylation