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- Predict the major products formed when 2- methyl-1-butene reacts with: H2, Pt/25°C. Show the reaction mechanism the given alkene reactions(a) Why does p-dichlorobenzene have a higher m.p. than its o- and m-isomers?(b) Why is (±)-Butan-2-ol optically inactive?Draw all of the substitution and elimination products formed from the given alkyl halide with each reagent: (a) CH3OH; (b) KOH. Indicate the stereochemistry around the stereogenic centers present in the products, as well as the mechanism by which each product is formed.
- Account for the regioselectivity and stereoselectivity observed when 1-methylcyclopentene is treated with reagent Q.Hg(OAc)2 in H2OWhat alkene is needed to synthesize each 1,2-diol using [1] OsO4 followed by NaHSO3 in H2O; or [2] CH3CO3H followed by −OH in H2O?Draw the products formed when both cis- and trans-but-2-ene are treated with OsO4, followed by hydrolysis with NaHSO3 + H2O. Explain how these reactions illustrate that syn dihydroxylation is stereospecic.
- Draw the products formed when 1-chloro-1-methylcyclopentane is treated with NaOMe in MeOH.Account for the regioselectivity and stereoselectivity observed when 1-methylcyclopentene is treated with reagent. Q) BH3Reaction of hbr with 2-methylpropene yields 2 bromo 2 methylpropane. What is the structure of the carbocation formed during the reaction? Show the mechanism of reaction.
- What is the major product formed when 3-methyl-1-butene is treated with Hg(C2H3O2)2 in a THF/ethanol mixture followed by NaBH4 in base?Name (including E/Z stereochemistry) the five alkenes that can produce 3-bromo-3-methylhexane on reaction with HBr. Draw the skeletal structure of each molecule.Nitromethane is reacted with ethyl prop-2-enoate with EtO-Na+, EtOH 3 equivalents to give the product X(C16). X then reacts with H2/Raney Ni to give the product Y(C14), which in turn reacts with Na to give Z (C12). Indicate which products X, Y and Z are.