2.5 Draw the curved arrows to complete the reaction mechanism of the following reaction. Start with the intramolecular reaction of chloroethylamine and then react the cyclic product with the primary amine. CL + R'-NH₂ R
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- ethylamine NABH,CN One problem with reductive amination as a method of amine synthesis, is that by-products are sometimes obtained. For example, reductive zmination of benzaldehyde with ethylamine leads to the expected product, N-ethylbenzylamine However, significant amounts of N-methyldibenzylamine are also recovered. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism leading to the by-product. Arrow-pushing Instructions H-A OH `H NH2 :A CH3 `CH3C) a nitrile D) an amine nitrite salt DIRECTIONS: Each of the following questions or incomplete statements below is followed by four suggested answers lettered A - D. Select or choose the letters of the best answer to the question or incomplete statement. 7. An organic nitrogen compound, X, gives ammonia on warming with dilute aqueous sodium hydroxide, X could be A) ethanamide B) ethylamine C) phenylamine D) amino ethanoic acid Which one of the following reagents reacts 1. in a similar fashion with both phenylamine (C H,NH,) and ethylamine. A) Br,(aq) C) conc. HNO, D) cold HNO (aq) 2. Phenylamine (aniline) can be prepared by reducing nitrobenzene with tin and concerntrated hydrochloric acid followed by the addition of alkali and finally steam distillation. The alkali is added to; A) prevent oxidation of phenylamine. B) liberate free phenylamine from solution C) dissolve excess nitro benzene D) dissolve the phenylamine 8. Arrange the following molecules in their increasing order of base…2) Use compound C (shown below) to answer the following questions. H2N H CH3 compound C H" H3C Br a) Classify compound C as a primary, secondary or tertiary amine. b) Give the IUPAC name for compound C, omitting absolute configuration (R or S) designations. c) In the indicated spaces below, draw the enantiomer, a diastereomer and a Fischer projection of compound C. enantiomer of compound C diastereomer of compound C Fischer projection of compound C
- Draw the struetre of the following three isomeic amides with chemical feruula CHNO. Amide #1: (E)-N,N-dimethyl-2-butenamide Amide #2: (7)-N-methyl-3-pentenamide Amide #3: (7)-3-hexenamide C'onsider Z sterenchemistry of alkenes. • Draw one structure per sketcher. Add additional sketchers asing the drop-down memu in the hottom right comer. Sepamte structares with - signs from the drop-down mena. O00. IF ChemDoodle ChemDoodie ChemDoodle just the first one is what I could really use help on Amide #1: (E)-N,N-dimethyl-2-butenamide5) Imidazole is more basic than pyridine, but more acidic than pyrrole, why? N.The –NHCOR group of an amide is an activating group, but it is not as strongly activating as NH2. (a) Explain why it is an activating group. (b) Explain why it is less activating than NH2.
- Please complete the following question. There is no need to provide an explaination. 1Write the mechanism for the following reactions: 1. the acid-catalyzed hydrolysis of an imine to a carbonyl compound and a primary amine 2. the acid-catalyzed hydrolysis of an enamine to a carbonyl compound and a secondary amine a. How do the two mechanisms differ?2.) Draw the products of the following reactions. Provide an arrow-pushing mechanism for each reaction. Label the acid, base, conjugate base, and conjugate acid. Finally, indicate the direction of equilibrium. 요요 + NaH
- Why is there a need to add two (2) equivalents of amine in the reaction of an acid chloride and an amine ? A) The extra amine will deprotonate the amine or alcohol, making it a better nucleophile. B) The extra amine will neutralize the acid by-product of the reaction. C) The extra amine will protonate the carbonyl of the acid chloride, making it more reactive. D) The extra amine will absorb the heat of the reaction.Picture 1 )Provide the functional group contained in each lettered compound: Choices:acid halidealcoholalcohol and ketoneamideanhydridecarboxylic acidesterketone Question 2 Indicate whether an acid–base reaction takes place under each of the conditions given. Choices yesno A: phenol + waterB: phenol + NaOH C: diethyl ether + NaOHD: ethanoic acid + NaHCO3E: ethanoic acid + NaOHF: Ethanoic acid + waterQ6:- Arrange the compounds of each set in order of basicity ? Explain your choice. ethylamine, 2-aminoethanol, 3-amino-l-propanol Q7:- Which compound has the highest boiling point Acetic acid or Propan-1-ol ? Why?