Below is an incomplete reaction scheme. Complete the structures of compounds B and C, and write in the missing reagents in Steps 1, 2 and 4. BnO, ..OTBS .OTBS HO- "HO. ỐCH3 ÕCH3 Bu4N*F", THF -CH3 `CH3 B.
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- Consider the reaction scheme shown below. HCI [1] ОН (a) Provide a detailed mechanism for reaction [1].OM on 2-mehoxybymethod.pentan 3omethylpentane,-2,B diudl Synthesize the ether product, 2-ethoxy-4-methyl pentane by two different methods out of various methods (nucleophilic substitutions, alkoxy mercuration/demercuration, industrial method (dehydration of alcohol), and Williamson method).Q3. Please provide a curved arrow mechanism that can explain the reaction shown below. i) LDA ii) aq. workup Me Me TBSO CI Q4. a) Identify the main products of the following cycloaddition reactions. In each case, provide a curved arrow mechanism that accounts for their formation. Me OH H Me b) Provide a clear drawing that explains the stereochemistry of the product.
- Predict the major organic product of the given reaction. Select Draw Rings More 1. NaOEt/ETOH 2. CH3CH2CH2Br 3. dilute NaOH/heat 4. H3O* 5. Нeat d orrow mechanism for the scheme by adding any missing atoms, bonds, charges,1. .CI HC C: Li HC CH LICI 2. -CH3 OH Aqueous HO-S- -CH3 acetone g = SN1 Nucleophilic substitution Electrophilic a = Proton transfer addition h = SN2 Nucleophilic substitution b = Lewis acid/base e = El Elimination c = Radical chain f= E2 Elimination substitution Identify the mechanism by which each of the reactions above proceeds from the mechanisms listed. Use the letters a - i for your answers. among 1. 2.Provide mechanism with arrows and charges H3CO. NaOH H2O
- 3. Propose a mechanism and predict the product. Include any relevant stereochemistry. a) HCI b) CH,N2 CH,N2 = H2C-NEN HO,Draw the organic product formed in the following reaction. H-N Job OEt OEt [1] NaOEt [2] CI [3] H₂O+, A NHAC HO "CH₂ edit structure ...H. H ÔMe Ph;P LIAIH4 compound a compound b HO. Bombykol C16H300 The above reaction scheme presents one possible synthesis of the compound. Work out the synthesis on a separate sheet of paper, and then draw the structure of compound b. Consider E/Z stereochemistry of alkenes. Do not show stereochemistry in other cases.
- N(CH2CH3)3 + HNO3 --------> a.) rewrite the reaction using bond-line structure of reagents and products of the reaction b.) supply the curved arrows explaining the mechanism of the reactionSynthesis - Drawing Saved Synthesize the following compound from cyclohexanol, ethanol, and any other needed reagents. он Part 1 out of 2 plnts Preparation of organometallic reagent: еВook Print References A B CH3CH2OH CH3 CH2MGB. draw structure ... Draw the intermediate product above and select the correct reagent for A. O Br, O NaBr O HBr O Select the correct reagent for B. O Mg O MgBr2 O MgI, O MgO Hin Soluti raw 11 e here to searchDetermine the mechanism of nucleophilic substitution of each reaction and draw the products, including stereochemistr CH₂CH3 CI Br + CN d. + CH3COOH a. acetone + -OCH3 e. DMF f. b. C. ||||| a ||||| Br H Br CH2CH2CH3 + CH3OH DMSO H CH3 CI Br + OCH₂CH3 + CH3CH₂OH