Which alkyl halide CANNOT be used effectively in a Gabriel synthesis of amines? Select one: a. Bromomethane b. Bromoethane c. 1-Bromo-2-methylpropane d. 2-Bromo-2-methylpropane
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- Which of the following reaction or reagent does not produce an amine molecule? A. Curtius rearrangementB. Reaction of oximes with metallic sodium in ethanolC. Reaction of N-alkylphthalimide with hydrazineD. Hofmann transformationE. Wolff transformationWhich amines cannot be prepared by a Gabriel synthesis? Explain your choices. NH2 NH2 NH2 а. b. C. d.a. Write the mechanism for the following reactions:1. the acid-catalyzed hydrolysis of an imine to a carbonyl compound and a primary amine2. the acid-catalyzed hydrolysis of an enamine to a carbonyl compound and a secondary amine b. How do the two mechanisms differ?
- 1. Rank the following nitrogens or amines in order of decreasing basicity (strongest to weakest, strongest = 1) a) N 'NH2 compare the basicity of three nitrogen in 1-methylhistamine b) F. 'NH2 'NH2 'NH2By means of a suitable reaction, show how each of the compounds can be prepared from propionic acid. More than one step may be required. a. methyl propylamine (CH3NHCH2CH2CH3)b. propionyl chloridec. ethyl propionated. propionic anhydridee. N-methyl propionamidePrimary amines can also be prepared by the reaction of an alkyl halide with azide ion, followed by catalytic hydrogenation. What advantage do this method and the Gabriel synthesis have over the synthesis of a primaryamine using an alkyl halide and ammonia?
- 1. Which are the starting materials used to synthesize the given compound through reductive amination? a. propan-1-amine and acetone b. acetone and dimethylamine c. propanal and dimethylmine d. propan-1-amine and acetaldehyde 2. Arrange the following in increasing order of acidity. I. 2,3-Dichlorobutanoic acid II. 2,2-Dichlorobutanoic acid III. 2-Chlorobutanoic acid IV. Butanoic acid a. IlBasicity of Amines Table 9.6 Observations on the basicity of each test sample. Sample Observations +/- Test tube 1: NaOH Test tube 2: Ethylamine Test tube 3: Aniline Arrange the test samples in order of increasing basicity? Explain briefly. Ferric Chloride Test Table 9.7 Observations on the reaction of each test sample with ferric chloride. Sample Observations +/- Test tube 1: NaOH logy Environment Scienc Test tube Ethylamine Test tube 3: Aniline Based on the test result, what is the structural requirement for a substance to react with the ferric chloride?1. What is the merchanism of synthesis of salicylamide? 2. Does the boiling temperature too high affect the performance synthesis of salicylamide? 3. Comparison of likelihood of an amide reaction between salicylic acids, methyl salicylate and ethyl salicylate?1. Show the products of the reductive amination reactions below; a) Acetone + NH3, followed by H2/Ni2 b) Acetone + CH3NH2, followed by LIBH3CN c) Acetone + (CH3)2NH, followed by LIBH3CN 2. Write the reaction and the names of the products formed in the reaction of aniline and N-methylaniline with: a) NaNO3+HCI followed by CuClI b) NaNO3+HCI followed by Cu20, Cu2*, H203. For the following amines, propose a stepwise synthesis for each compound. NH2 a) b)The reaction of a nitrile with an alcohol in the presence of a strong acid forms an N-substituted amide. This reaction, known as the Ritter reaction, doesnot work with primary alcohols. a. Why does the Ritter reaction not work with primary alcohols? b. Provide an explanation for why an amide is less susceptible to nucleophilic attack than its corresponding ester.SEE MORE QUESTIONS