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- d) Synthesize the following compound starting from benzene. NO₂A problem often encountered in the oxidation of primary alcohols to acids is that esters are sometimes produced as by-products. For example, oxidation of ethanol yields acetic acid and ethyl acetate: Propose a mechanism to account for the formation of ethyl acetate. Take into account the reversible reaction between aldehydes and alcohols:3) Provide the major product(s) produced from each of the following reactions. a) 1) LİAIH4 2) H2O
- Q17. Compound 1 can undergo an intramolecular reaction to give cyclic product 2. Using curly arrows, show the mechanism of this reaction – note that the mechanism involves more than one elemental step - and draw the structure of 2; chemical formula is provided as guidance. H2N. C5H9NO CH;OH 2a) Draw the major product(s) of the following reactions. i) ii) OSO4 NaHSO4, H₂O BH3-THF H₂O₂, NaOH b) Methylcyclohexene reacts with chlorine both in CCl4 and water. i) Draw the structural formula for both the products. > ( )(b) Consider the reaction of 1-bromobutane with a large excess of ammonia (NH3). Draw the reactants, the transition state, andthe products. Note that the initial product is the salt of an amine (RNH3+ Br - ), which is deprotonated by the excess ammonia to give the amine.
- The pictured reaction shows an alkyl bromide being converted into an alkene. Choose all reagents that would produce the pictured alkene as the major product. A) NaOH/H2O B) H2O C) tBuOK/tBuOH D) EtONa/EtOH6) Give the products of each of the following reactions. a) b) d) H Li, NH3 CH3CH₂OH xo Na₂Cr₂O7 H₂O, H₂SO4, A H₂O LI, NH3 CH₂CH₂OHb) Listed below are several hypothetical nucleophilic substitution reactions. None is synthetically useful because the product indicated is not formed at an appreciable rate. In each case provide an explanation for the failure of the reaction to take place as indicated. OMe HO + OMe + OH HO + CH; OH
- Provide the structure(s) of the expected major organic product of the reaction shown. 1) Disiamylborane 2) H₂O₂, NaOH OI O II ||| O IV OV CH3CH₂C(CH3)2C=CH OH OH xx xo IVPredict the product when cyclohexanone reacts with aqueous sodium hydroxide at 100°C. IV II II I O 1) I O 2) || 3) II 4) IV 5) none of these7. Ozonolysis of compound A yields pentane-2,4-dione. What is the structure of compound A? a OH OH H Compound A C10H16 H₂SO4 1.03 2) (CH3)2S Draw the structures of the two possible cyclization products. pentane-2,4-dione