PROBLEM 7-24 1. Predict the elimination products of the following reactions. When two alkenes are possible,...
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)
Draw the major alkene elimination products from each of the reactions.2-bromopentane + NaOCH3NaOCH33-bromo-3-methylpentane + NaOMeNaOMe (MeMe = methyl, CH3CH3)2-bromo-3-ethylpentane + NaOH
PROBLEM 7-25 For each reaction, decide whether substitution or elimination (or both) is possible, and predict the products you expect. Label the major products. (a) 1-bromo-1-methylcyclohexane + NaOH in acetone (b) 1-bromo-1-methylcyclohexane + triethylamine (EtN:) (c) chlorocyclohexane + NaOCH, in CH, OH (d) chlorocyclohexane + NaOC(CH3)3 in (CH3)3 COH
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)
5. (a) Write seven (7) possible ozonolysis reactions with different alkenes and alkynes? (10 points (b) Among Bromopentane, 2-bromopentane, 2-methyl-2-bromopentane and 1-Bromo-1- methylcyclohexane, in which compound SNI and El reactions with aq KOH and alc.KOH will be faster, and what will be the resulting products? Write the reactions involved. (10 points)
For letters h & i : For each of the following reactions, predict the major mechanistic pathway (SN1/SN2/E1/E2) and the major organic products 1. (cont.) (h) НСОН CHB -CHBr HCOH - (0) CH,CH,CH,CH,Br- NH 2. For each of the following indicate which reaction will occur faster. Explain your reasoning. (No credit will be given for guesses) (a) The reaction of (CH),CBr with 0.001M aqueous NaOH or 0.10M aqueous NaOH (b) The reaction of 2-bromobutane with NaOH in DMSO or NaSH...
1. ELIMINATION CONVERGENCE REACTIONS: Provide the major products for the following elimination products under the unique prescribed conditions: A NaOH DMSO (CH3)3COK DME > o B NaOH H20
1. Describe properties about alkenes and alkynes. 2. The two stereoisomers of l-bromo-1,2-dichloroethene cannot be designated as cis and trans in the normal way because the double bond is trisubstituted. They can, however, he given (E) and (Z) designations. Write a structural formula for each isomer and give each the proper designation 3. Studies of numerous alkenes reveal a pattern of stabilities that is related to the number of alkyl groups attached to the carbon atoms of the double bond....
ted in ethanol Give the substitution and elimination products 1-iodo-1-phenylcyclopentane hea 3. Student Learning Objective: Predict the products of dehydrohalogenation and use Zaitsev's rule to predict the major and minor products 7.11: Positional Orientation of Elimination: Zaitsev's Rule Problem-Solving Hint: 1. Zaitsev is transliterated from the Russian name, and may also be spelled Saytzeff Whenever a carbocation has the positive charge on a carbon atom next to a more highiy substituted carbon, consider whether a rearrangement might occur. 2. When...
Predict the major product for the following reactions considering competing substitution and elimination pathways. CI NaOEt NaSH NaOH Explain why a completely nonpolar bond will not give a stretching signal in the IR spectra. Would you expect to see a signal for C-H stretching for a nonpolar molecule? Why or why not?