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PROBLEM 7-25 For each reaction, decide whether substitution or elimination (or both) is possible, and predict...
15. Draw all possible elimination products (including cis/trans isomers). Decide which will be the major elimination product and briefly explain why. NaOC(CH3)3 a. Ci KOCH NaOH Кос(CH3 NaOCH,CH3 stions decide which will be a faster E2 reaction. Explain.
PROBLEM 7-24 1. Predict the elimination products of the following reactions. When two alkenes are possible, predict which one will be the major product. Explain your answers, showing the degree of substitution of each double bond in the products. 2. Which of these reactions are likely to produce both elimination and substitution products? (a) 2-bromopentane + NaOCHz (b) 3-bromo-3-methylpentane + NaOMe (Me = methyl, CH3) (C) 2-bromo-3-ethylpentane + NaOH
PROBLEM 7-24 1. Predict the elimination products of the following reactions. When two alkenes are possible, predict which one will be the major product. Explain your answers showing the degree of substitution of each double bond in the products. 2. Which of these reactions are likely to produce both elimination and substitution products? (a) 2-bromopentane + NaOCH3 (b) 3-bromo-3-methylpentane NaO (c) 2-bromo-3-ethylpentane NaOH Me (Me= methyl, CH3)
2. When (1R, 2R)-1-bromo-2-methylcyclohexane reacts with lithium methoxide in methanol, both substitution and elimination reactions occur to produce three unique products. What are the structures of the three products produced by this reaction? sepenbare CHOLE сно CH3 3. When (R)-3-mesyl-3-ethyloctane reacts with potassium hydroxide in aqueous THF elimination occurs to produce three unique alkene products. What are the structures of the three products produced by this reaction? MsOCH.CH HOK THF/H20 4. When (S)-2-fluoro-2-iodobutane reacts with hydroxide ion in aqueous THF,...
Predict the major product for the following reaction. Label whether the reaction will proceed through an SN2, Sn1, E2, or E1 mechanism. SN2 / S1/E2/E1 сн. Br NaCN (1 mol) (1 mol) Predict the major product for the following reaction. Label whether the reaction will proceed through an SN2, SN1, E2, or E1 mechanism. SN27 SN1/E2/E1 NaOCH; Сн,он Draw the line structures of the reactants below and predict the product of their reaction. Label the reaction as SN1, SN2, E1,...
Substitution and Elimination practice problems Analyze the reactant(s) and reaction conditions, then predict the structure of the major organic product and indicate the predominant mechanism (S1, S2, E1, or E2) of each reaction KOC(CH) CH:CH-CH:CH BY (CH3),COH, 82°C 9 CH CH CH CH Br Na SCH CH,OH,0°C Nå SCH.CH DMF, 0°C 4 CHI - NaNO, sc CH CH3-Cors HO 22°C CH CH CH,OH 22°C K®SC(CH3) (CH3),COH, 82°C CHẠI • CH,SH 43°C масH,CH, CH,CHOH, 78°C CH H20 22°C Nясн, CH,OH, 0°C
7. Predict the product(s) of each of the following reactions include stereochemistry where important and indicate the mechanism (S, S,2, El, E2). 80°C a 2-chloro-2-methylbutane NaOH Н.о b. (R)-2-chloropentane Nac c-H DMSO с1 (снс. Cн, CH,ОН d. trans-1-chloro-3-methylcyclohexane+ NaOC(CH) e. 2-chloro-3-phenylbutane Н.о f. trans-1-bromo-3-methyleyclopentane Nal acetone NaOCH THон g 2-chloro-2-methylbutane EIOH h R-3-bromo-2-methylpentane . trans-1-bromo-2-isopropyleyclohexane CHCOK NaSH Н,о j. 1-bromopropaе NaOCH снон CH коссH). I-bromobutane m. cis-1-chloro-3-methyleyclobutane Nal DMSO сHсH,он n. (R)-2-iodo-2-phenylethane NaOH o. 1-iodobutane p. 2-bromo-3-methylbutane KOC(CH). но (S)-3-chlorocyclopentene...
PROBLEM 7-20 Give the substitution and elimination products you would expect from the following reactions. (a) 3-bromo-3-ethylpentane heated in methanol (b) 1-iodo-1-phenylcyclopentane heated in ethanol (c) 1-bromo-2-methylcyclohexane + silver nitrate in water (AgNO3 forces ionization)
1. What substitution mechanism will the following reaction likely proceed through? (1pt) CH3 HU. : N=C: +3C-Br - NC-C WH + Br HT 2. Label the componetns of the above reation as: Nucleophile, electrophile, leaving group (3pt) 3. Assign R and S configuration to the following reactant and products (2pt) NaOH HO + HO-COCH3 H.COwc-OH + HO-6 H2COCCI H H 4. What ratio should the two above products be formed in and what is their stereochemical relationship? (2pt) 5. Predict...
3 & 4 please Draw all possible El elimination products and indicate which alkene is the major product: CH3OH CH3 a) HC-C-ci CH3 CH3CH2OH CH3C430H CH3CH2OH Br CH3CH2OH I X ORSOGON CH3OH Br brow all possible E2 elimination products and indicate which okene is the major product CH, ON CH, OH CHÚCHONa CH,CH OH CHÚCH ONa CH,CH, OH CH3CH2ONa d YoX CH₂CH₂OH CH,CH OH (CH3),COH TONE CH,(CH)CH,OH CHCH,ONa CH,CH,OH CH,CH, CH,CH,ONa CH,CH, OH CH,