In the addition of cyanide ion to substituted benzaldehyde, which value of σ for substituents would be used if attached at the para position to obtain the susceptibility constant. A. σ B. σ+ C. σ- D. None of the given choices
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In the addition of cyanide ion to substituted benzaldehyde, which value of σ for substituents would be used if attached at the para position to obtain the susceptibility constant.
A. σ
B. σ+
C. σ-
D. None of the given choices
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- 5. In a 13C NMR spectrum of methyl fluoride where you are observing the 1H-13C coupling the methyl carbon would appear as A. A quartet B. doublet of quartets C. A pentet D. doublet 6. In 1H NMR spectroscopy the observed signal for CH3F is A. A quartet B. doublet of quartets C A pentet D. doublet 7. The number of nonequivalent carbon in cyclohexanol is? Please provide only typed answer solution no handwritten solution allowedAlcohols 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.Write out the mechanism for this hydration of an alkene adding curved arrows to show how electrons reorient to make or break bonds or form new lone pairs
- I. Using Markovnikov's rule, predict the predominant product in each of the following addition reaction а. CНз—СH—CH-—СH—СH, + HBr —> b. + HCl → с. СН;—СН—CH—СH,—СН, + HBr —> CH—CH—СН,—СH; + HCI -> D. + HBr → E.The two reactants shown below are combined to bring about a nucleophilic substitution reaction. CH₂C=CNa + CH3CH₂CH₂Br f. HBr g. CH₂=CH₂ h. CH3C=C i. Br j. Na+ k. CH3C=CH I. none Which letter designates the electrophilic carbon at which substitution occurs? (If no reaction occurs enter the letter corresponding to "none.") Which letter corresponds to the leaving group? Which letter designates the nucleophile?please Includ rxn coordinate diagram
- 10. What is the major organic product obtained from the following reaction? b. 1 b. 2 k. 13 -CEN 1. NaOH. H₂O 2 H₂O* 3 NOH "NH₂ OH NH₂ 11. Which of the following substituents is ortho/para directing and deactivating in electrophilic aromatic substitution reactions? COCH, |b.NH, c. Br d. CH₂CHAnswer #1 and #2. Prioritize answering #2.Estimate the pK, values for the functional group classes represented by the given molecules. EC H HO. HO, NH3 25 15 10 50 35 Answer Bank PO 7:11
- Chemistry Part 5 out of 6 Choose the most appropriate reagent(s) for the conversion of 1-phenylethyl bromide to methyl 1-phenylethyl sulfide. A H₂S C CH₂SH NBS, ROOR CCI4 heat E CH₂SO₂H Br BSg, NaOH reagent(s) DNaSCH3, DMF SCH3Visualize the 3D model of 1,2-dibromoethane, CH;BrCH;Br. Which of the followinginteractions will be the greatest? a. hydrogen-hydrogen interactions b. hydrogen-bromine interactions c. bromine-bromine interactions[Review Topics] [References] HO pyridine 1. SOCIl, + sO2 + H. Aqueous acetone H3C H20 H3C HBr 2. Br H OH optically active racemic f = SN1 Nucleophilic substitution g = SN2 Nucleophilic substitution a = Proton transfer d = E1 Elimination b = Lewis acid/base e = E2 Elimination c = Electrophilic addition The rections above involve synthesis or reactions of alcohols and ethers. Identify the mechanism by which they proceed from among the mechanisms listed. Use the letters a - g for your answers. 1. 2.