33. Starting with aniline (given below), show the reactions you would use to prepare 4- bromoaniline almost exclusively. NH CÁCH, NH2 Ас О, всес Bry glacial acetic acid NHOCH тю Hydrolysis
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- Which of the following structures and IUPAC names are incorrectly matched? * oe (A) Methyleyclohexanoate (В) `NH2 Br 4-Bromo-3-chlorohexanamide 2-Ethoxypentane (D) HOOC HOOC 3,5-Nonanedioic acid В A Dhow to synthesize 2-phenylclohexanone from cyclohexanone?Propose a synthesis of the topical anesthetic cyclomethycaine from 4-hydroxybenzoic acid, 2-methylpiperidine, and any other necessary reagents. HN' + HO. НО Cyclomethycaine 4-Hydroxybenzoic acid 2-Methylpiperidine
- Complete the reaction scheme below. Show all reagents and intermediates. No reaction is a possible answer. 1) CH3CH2M9B CH3OH H+ (ехcess) но 2) H30*, H2O B A OCH3CH₂CNHCH₂ CH-₁ C d OH CHCHNECH, CH₂ Ephedrine can be synthesized via reductive amination plus other necessary reactions. Predict the necessary reactants and reagents that will give the intermediate and final products shown.Which of these would be best to convert pentanal into 2-hexanol? O CH3MgBr then H3O+ NaBH4 CH3OH, H+ CH3CI, AICI3 O (CH3)2CuLi then H3O+
- H₂C ཏཱཏི 1 ནི OH 1. Br2, PBг3 2. H₂O H3C OH Br The a-bromination of carbonyl compounds by Br2 in acetic acid is limited to aldehydes and ketones because acids, esters, and amides don't enolize to a sufficient extent. Carboxylic acids, however, can be a-brominated by first converting the carboxylic acid to an acid bromide by treatment with PBr3. Following enolization of the acid bromide, Br2 reacts in an a-substitution reaction. Hydrolysis of the acid bromide completes the reaction. Draw curved arrows to show the movement of electrons in this step of the mechanism. Arrow-pushing Instructions :0: H3C Br Br + :::OH2 Br H₂O H3C Br за4) Propose a synthetic pathway to prepare 2-methyl-propan-2-ol from propane. You're allowed to use any reagents you like but all the carbon atoms in your product should come from the propane. он It must be propanone otherwise the conversion would be too long.a OH CH2CNHCH3 T CH3 d OH CHCHNHCH3 CH3 Ephedrine can be synthesized via reductive amination plus other necessary reactions. Predict the necessary reactants and reagents that will give the intermediate and final products shown.
- 1. Rank the following substances in order of increasing reactivity towards nucleophilic acyl substitution (the least reactive is 1 and the most reactive is 5). 요 OPh HOIf anhydrides react like acid chlorides with the nucleophiles, draw the products formed when each of the following nucleophiles reacts with benzoic anhydride [(C6H5CO)2O]: (a) CH3MgBr (2 equiv), then H2O; (b) LiAlH4, then H2O; (c) LiAlH[OC(CH3)3]3, then H2O.Please choose every correct one for the reaction below: Benzophenone + 1) LIAIH4, 2) acidic water → O benzoic acid O benzyl alcohol O diphenylmethanol no reaction O benzhydrol