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- Othesis. teps neceossary to synthesize this compound by yl halide; after that you can add any organic or Dound. →1-hexanol )Consider the following compounds: B = HOCH2CH2CH2CH3 CH3 HC C = CH3CH2CH2OCH2CH2CH3 D = a) Which one(s) could be reduced with NaBH4? b) Which one(s) would give a positive Tollens silver mirror test? c) Which one(s) could be oxidized with CrO3? d) Which one(s) would react with 1 or 2 equivalents CH3M9B to make a npound butyl ethyl ether larger alcohol?(b) How would you carry out the following synthesis to prepare the target molecule? + CH3 ??? HO Target molecule3) Complete the following: Stereochemistry and regiochemistry may be important. b) d) type type MeO Br type type type OH H Br E1 Reaction Borohydride Reduction H NaOAc DMF Асон HO PCC CH₂Cl2 H CO₂Et f) g) h) i) j) type type type type type OH OH Hydride Reduction MeHN Reductive Amination HO Br OH
- Propose a mechanism for the followingreaction.Select the appropriate sequence of reactions to accomplish the following synthesis. O [1] NaOEt; [2] BrCH2CH2CH2CH2Br; [3] LDA O [1] Br2, CH3CO2H; [2] L¡2CO3, LiBr, DMF; [3] CH3CH2CH2CH2B1 O [1] LDA; [2] BrCH2CH2CH2CH2Br; [3] NaOEt O [1] Br2, CH3CO2H; [2] Mg, Et2O; [3] CH3CH2CH2CH2B1Provide the complete mechanism using curved arrow formalism for the reaction of p-isopropxlbenzoic acid undergoing nitration. Tell how many peaks in the 'H and 13C NMR spectrum that would be observed for the final product.
- Use the reaction given below to answer the following questions. A CH₂OH B H₂O+ C + CH3NH3* D a) What are the approximate pKas of compounds A and B? b) The reaction given above is irreversible. Give a detailed explanation of the reaction and reaction mechanism. Your explanation should indicate your knowledge of the reactivity of carboxylic acid derivatives..S. CHз cO2 но Со2 но coz intermediate thioester 1-isopropylmalate Biosynthesis of leucine involves conversion of an intermediate thioester to 1-isopropyl malate (see above). This proceeds in in two steps followed by a proton transfer. Write a detailed mechanism for this conversion. Then, draw the intermediate (or compound) produced in step 1. • You do not have to consider stereochemistry. • Draw uninvolved carboxyl groups in the anionic state, and enolates as carbanions. • When needed, abbreviate CoenzymeA-S- as CH,S- in your drawing.Why do you suppose ketone halogenations in acidic media are referred to as being acid-catalyzed, whereas halogenations in basic media are base-promoted? In other words, why is a full equivalent of base required for halogenation?
- What reagents are necessary to carry out the conversion shown? OH CH₂CH3 CH₂CH3 O Na₂Cr₂O7/H2SO4/H₂O; CH3CH₂CH₂CH₂MgBr; H₂O O Na2Cr₂O7/H2SO4/H2O; SOCI2; excess CH3CH₂CH₂CuLi; H₂O O Na₂Cr₂O7/H₂SO4; excess CH3CH₂MgBr; H3O+ O Na₂Cr₂O7/H₂SO4/H₂O; SOCI₂; excess CH3CH₂MgBr; H₂O O Na₂Cr₂O7; SOCI2; CH3CH₂MgBr; H₂OPresent a synthesis for the transformation depicted3) Please draw the structures that correspond to omitted structure for each of the following synthetic sequences. HO Cro3 Cro3 (a) Product `OH Product H,0 HO PCC Cl РСС (b) Product (e) Product OH HO РСС NABHA (f) Starting Material (c) Product OH ELOH