.Which one of the following bromoalkanes reacts the fastest with sodium cyanide, NaCN, in acetonitrile? O 2-bromo-3-methylbutane O 1-bromobutane O 2-bromo-2-methylbutane O bromocyclohexane
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- Which of these alkyl chlorides undergoes dehydrohalogenation in the presence of a strong base to give pent-2-ene (shown below) as the only alkene product? O l-chloro-2-methylbutane O 2-chloropentane O 3-chloropentane O 1-chloropentane O l-chloro-3-methylbutaneZaitsev's rule can be used to predict the major alkene product in a dehydration reaction. What is the name of the major product of the dehydration reaction shown below? CH3 CH3CHCH₂CHCH3 ОН 4-methyl-1-pentanol 4-methyl-4-pentene O2-methyl-2-pentanol 4-methyl-2-pentene H heatWhich of the following compounds would not be a product of the reaction of 2-bromo-3-methylpentane in ethanol? (Ethoxy = -OCH2CH3) 3-methylpent-1-ene 2-ethoxy-3-methylpentane 1-ethoxy-3-methylpentane 3-methylpent-2-ene 2-ethylbut-1-ene
- Which alkene when hydrochlorinated (hydrohalogenation reaction) will give this alkyl halide as product H3C CH3 CI CH3 2-methyl-1-pentene 2,3-dimethyl-1-pentene 2-methyl-2-butene 3-methyl-2-pentene6. From what alkyl halides are the following alkenes have been made? CH3 CH3 CH3CHCH2CH2ĊHCH=CH2 7. Which of the two isomers would you expect to undergo E2 elimination faster? trans-1-bromo- 4-tert-butylcyclohexane or cis-1-bromo-4-tert-butylcyclohexane? Draw each molecule in its more stable chair conformation. Provide an explanation to your answer. 8. Classify each reaction as SN1, Sn2, E1 or E2. NaN3 (a) CH3CH2CH2CH2B CH3CH2CH2CH2N=N=N THE (b) CI КОН CH3CH2CHCH2CH3 CH3CH2CH=CHCH3 Ethanol (c) CI OČCH3 -CH3 CH3CO2H -CH3Which of the following in the elimination reaction of aqueous 1-chloro-1-cyclopentyl-2-methylhexane is the Zaitsev product? 1-Cyclopentyl-2-methyl-hexan-1-ol 1-Cyclopentyl-2-methyl-hexan-3-ol 1-Cyclopentyl-2-methyl-hexan-2-ol 1-Cyclopentyl-2-methyl-hex-1-ene 1-Cyclopentyl-2-methyl-hex-3-ene
- Treating 2-methyl-2-pentene with Br2 is expected to produce which of the following as the major product? 2,2-dibromo-2-methylpentane 2,3-dibromo-2-methylpentane 3-dibromo-2-methylpentane 3,3-dibromo-2-methylpentane 2-bromo-2-methylpentaneAlcohols are important for organic synthesis, especially in situations involving alkenes. The alcohol might be the desired product, or the OH group might be transformed into another functional group via halogenation, oxidation, or perhaps conversion to a sulfonic ester derivative. Formation of an alcohol from an alkene is particularly powerful because conditions can be chosen to produce either the Markovnikov or non-Markovnikov product from an unsymmetrical alkene. Using your reaction roadmap as a guide, show how to convert 4-methyl-1-pentene into 5-methylhexanenitrile. You must use 4-methyl-1-pentene and sodium cyanide as the source of all carbon atoms in the target molecule. Show all reagents needed and all molecules synthesized along the way..Which one of the following molecules can react as electrophile in reactions with alkenes? CH3OH NaCI HCI KCN NaCI O HCI O KCN O CH3OH
- What reagents in what order would you use to convert 1,2-dimethylcyclohexane to trans-1,2-dimethyl-1,2-dihydroxycyclohexane?1. Illustrate details mechanism of reactions for bromination of the following alkane. State each of the steps involves. CH3 Br2 CH `CH3 hv, 25°C H3C 2. Draw the two chair conformations of cis-1-chloro-4-methylcyclohexane. Which of the conformers is more stable?Arrange the following alkenes in their correct order of stability. 1=Most stable and 4=least stable.