Predict the major product(s) for each of the following reactions. Show both enantiomers if a racemic mixture is formed: ? ? 1) RCO₂H 2) H3O+ HBr 1) BH3⚫ THF 2) H2O2, NaOH ? ? H2, Pt Br2 ?
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- Predict the major product(s) for each of the following reactions. Show both enantiomers if a racemic mixture is formed: ? 1) RCO₂H 2) H₂O+ HBr H₂, Pt • 1) BH3 THF 2) H2O2, NaOH Br2 ? ? ?Show how you would synthesize each compound using methylenecyclohexane asyour starting material. If a chiral product is shown, assume that it is part of a racemicmixture.Complete the following reaction scheme. Give all product(s) and indicate major or minor and any relevant stereochemistry (g) 1) BH3. THF 2) H202, OH (h) 1) Hg(OАC), H,о 2) NABH4
- Draw the products formed when both cis- and trans-but-2-ene are treated with a peroxyacid followed by −OH (in H2O). Explain how these reactions illustrate that anti dihydroxylation is stereospecific.Acid-catalyzed bromination of pentan-2-one (CH3COCH2CH2CH3) forms two products: BrCH2COCH2CH2CH3 (A)and CH3COCH(Br)CH2CH3 (B). Explain why the major product is B, with the Br atom on the more substituted side of the carbonyl group.When 2-bromo-3-phenylbutane is treated with sodium methoxide, two alkenes result (by E2 elimination). The Zaitsevproduct predominates.(a) Draw the reaction, showing the major and minor products.(b) When one pure stereoisomer of 2-bromo-3-phenylbutane reacts, one pure stereoisomer of the major product results.For example, when (2R,3R)-2-bromo-3-phenylbutane reacts, the product is the stereoisomer with the methyl groups cis.Use your models to draw a Newman projection of the transition state to show why this stereospecificity is observed.(c) Use a Newman projection of the transition state to predict the major product of elimination of (2S,3R)-2-bromo-3-phenylbutane
- When 2-bromo-3-phenylbutane is treated with sodium methoxide, two alkenes result (by E2 elimination). The Zaitsevproduct predominates.(a) Draw the reaction, showing the major and minor products.(b) When one pure stereoisomer of 2-bromo-3-phenylbutane reacts, one pure stereoisomer of the major product results.For example, when (2R,3R)-2-bromo-3-phenylbutane reacts, the product is the stereoisomer with the methyl groups cis.Use your models to draw a Newman projection of the transition state to show why this stereospecificity is observedWhat product(s) is(are) formed in the following reaction Br/CH-Clz Br plus enantiomer H3C Et Br Br H and H3C Br H3C Et Et Br он ...Et plus enantiomer H3C BrDraw a reactant with formula CzH,CI that would give the following product mixture of the reaction shown. NH? H3C NH2 H3C. C7H;CI + NH3 NH2
- K app.101edu.co Lepadiformine is a cytotoxic marine alkaloid that has cardiovascular biological activity. Draw the product of this key SN2 reaction (shown below) used in the synthesis of lepadiformine. Use wedge and dash bonds to indicate stereochemistry where appropriate. Ignore inorganic byproducts. Br Si e H Draw SN2 product THFConsider the series of the trans effect: CO, CN-, C2H4 > PR3, H-, CH3- > C6H5- > NO2-, SCN-, I- > Br- >Cl- > py > NH3 > H20 What would be the major product of the following reaction? Select one:Which of the following corresponds to the expected major product of the reaction sequence shown? 1. Na, NH3, -33°C 2. Br2, CH2CI2 Br Br Br NH2 Br Br Br Br Br