Tre 2.) Given the final product and reagents for each step in the forward synthesis of this cyclohexane-containing internal alkyne, please propose the structures for the synthetic intermediates A-E below.
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- Draw a structural formula for the major organic product of the reaction shown below. & CH₂ (oran CH3CH₂O -CuLi 2 ether You do not have to consider stereochemistry. Sn [F ? ChemDoodle H3O +For each compound, give the product(s) expected from (1) HgSO4>H2SO4@catalyzedhydration and (2) hydroboration–oxidation.(a) hex-1-yneV. @Given the following mechanism fer me Y OCHS NaOH reaction show the detailed conversion of A to B •OCN3 CH3OH. OH (A) (B) c Ⓒ using the same detailed mechanism instead of cyclonexare ring as shown in product. B, propose and fer a product wil a cyclopentane ning instead of a cyclohexane viny. Ⓒ Exploumpand I with why campand (B) is preferred over the campanay campand with a cyclopentake ring..
- 10) What is the major product of the following reactions? CH3 + HCI H₂O H* ? CH3CO3 H HBr 11) Which is more highly regioselective the addition of HCl to methylenecyclohexane or to 1- methylcyclohexene? Explain. What product(s) is/are formed when the following compound react with ozone and then with dimethyl sulfide (i.e. ozonolysis)? a) b)Q12. (1-bromoethyl)benzene 1 udergoes an 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. CH; RDS Br C3Hg E1 2 3N(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 reaction
- :) Predict the NAME, STRUCTURE and STEREOCHEMISTRY of the BEST ORGANIC REACTANT or the MAJOR ORGANIC product for the following reactions: CH2 МСРВА, НзО* meso 3,4-hexane diol FoH H+OH CHCH a) (name, str, stereochem) ? HCI b) 3-methyl 1-pentene - ? (name, str, stereochem) c) methylcyclohexane ----Br2, hv------? (name, str, stereochem) 40H d) ? (name, str., stereochem) Os04, water----meso cyclohexane 1,2-diol ----Explainwhythefollowingdeuterated1-bromo-2-methylcyclohexaneundergoes dehydrohalogenation by the E2 mechanism, to give only the indicated product. Two other alkenes are not observed.3. Propose a mechanism and predict the product. Include any relevant stereochemistry. a) HCI b) CH,N2 CH,N2 = H2C-NEN HO,
- (i) OEt OEt 1) NaOEt 2) H3O* workup W 1) NaOEt 2) Br V Compound W can be synthesised in an excellent yield via an intramolecular Claisen reaction of 1,6-diester V. Draw the structure of product W and provide detailed reactions mechanisms to account for its formation. (ii) Draw the product X which would form upon the alkylation reaction of W with the reagents shown.The carbocation electrophile in a Friede1-Crafts reaction can be generated by an alternate means than reaction of an alkyl chloride with AlCl3. For example, reaction of benzene with 2-methylpropene in the presence of H3PO4 yields tert-butylbenzene. Propose a mechanism for this reaction.5. a) When the molecule below is treated with HCI, the product distribution shown is obtained. Use curved arrow formalism to draw a mechanism for this process. Account for the product distribution and draw resonance structures for the intermediate that leads to the major product. The m HCI CI + s 1o(29nil no awa eib ys leldwsio (2tniog 01).E (15 % CI2 tw ledsl< 1% lad olualom 85 %