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- Q12. (1bremeetblbenzene 1 ydergOesan elimination following an E1 mechanism. Fill in the following synthetic scheme by drawing the structure of intermediate 2 and product 3. The chemical formula of product 3 is provided as guidance.Chemistry Complete the synthesis of (R)-4-methyl-2-((R)-1-(phenylthio)ethyl)pentane-1,2-diol from thestarting material given ((Z)-2-isopropylbut-2-enal). You must list out all reagents/solvents usedand draw the intermediate structures. You do NOT have to draw the mechanisms. Hint: thestereochemistry is very importantWhich is the major substitution product of the reaction shown? (A) OEt (C) (E) no reaction Br NaOEt © 2019 ProtonGuru.com (B) (D) OEt (F) a mixture of more than one
- 3) Determine the major products (A-F) of the following substitution reactions. Draw full arrow-pushing mechanisms for each reaction, stating whether it is likely to proceed via an Sy1 or Sy2 substitution. ELOH Br PhSNa A (a) MsO (d) acetone Br Br. Ph H20 (b) B (e) Meo OMe Br NaNg (c) (1) MsO KCN H20 DMF H,C-So- = MsO- Mso- MachWhat would be the major product of the following reaction? O CH3 || C6H5C-CHCH3 + D20 A) B) C) D) E) O CD3 C6H5C-CHCH3 O CH3 1-1 C6H5C-CDCH3 O CH3 C6D5C-CDCH3 O CD3 | | C6H5C-CDCD3 OD - C6H5CDCHCH3 CH3 OD room temp. ?3) Show how you would synthesize the following Compounds, storting with benzene or toluene ond ASSume any necessory pro duct (ond seperoble from ortho) in ortho, pora reogents, poro is the mogor mixture c)o- chlorobenzoic ocid d) m- chloronitro benzene
- 3. Propose a plausible mechanism for the following transformation: & Q & CF3 H₂N CN 'N CF HOHShow the following mechanisms, and include any pertinent intermediates and relevant stereochemistry. H₂C 0 CH3 1) iPrOK 2) H₂OPropose an efficient synthesis for each of the following transformations он OMe O;N.