1.2.OH+ conc. HBrSubmit AnswerNa SH₂Oa = Proton transferd = Electrophilic additionb = Lewis acid/basee E1 Eliminationc = Radical chain substitutionf = E2 EliminationIdentify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answers.1.g2.NaBriRetry Entire Group 2 more group attempts remaininggSN1 Nucleophilic substitutionh = SN2 Nucleophilic substitution 1.2.2.Br₂Submit Answerhvtaa Proton transferd = Electrophilic additionb = Lewis acid/basee = E1 Eliminationc = Radical chain substitutionf = E2 EliminationIdentify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a -i for your answers.1.NaOCH3Major productMethanol+HBrHOCH 3Retry Entire Group 2 more group attempts remaining+NaClgSN1 Nucleophilic substitutionh = SN2 Nucleophilic substitution

The first reaction is with 3,3-dimethyl-2-butanol and hydrobromic acid. The alcohol group will be protonated and leaves the molecule because it is a good leaving group. The carbocation undergoes methyl shift to obtain most stable carbocation i.e., tertiary carbocation, bromine ion will act as nuclophile and attacks the carbocation to form 2,3-dimethyl-2-bromo butane.The reaction is SN1 substitution reaction.The second reaction is a primary alkyl halide i.e., bromobutane and the reagent is a strong nucleophile. The primary carbon attached to leaving group undergoes SN2 reaction.The bromine atom is a good leaving group and sulphur ion attacks electrophilic carbon.The reaction is SN2 nucleophilic substitution.The first reaction is between 2-methyl propane and bromine molecule in the presence of light. It forms a stable radical carbocation which is tertiary carbon radical Then the bromine radical atom attacks the carbon to form 2-methyl-2-bromo propane.The reaction undergoes radical chain substitution.The second reaction is between 2-methyl-2-chloro propane and sodium methoxide. Chlorine is a good leaving group and methoxide ion is a strong base which absorbs the hydrogen from the methyl group which forms 2-methyl propene.The reaction undergoes E2 elimination due to strong base.The first two reactions are g and h.The second two reactions are c and f

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1. 2. Br₂ 2. hv ta a = Proton transfer d = Electrophilic addition b = Lewis acid/base e E1 Elimination c = Radical chain substitution f = E2 Elimination Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a -i for your answers. 1. NaOCH3 Br Major product HBr Methanol + HOCH 3 + NaCl gSN1 Nucleophilic substitution h = SN2 Nucleophilic substitution

1. 2. Br₂ 2. hv ta a = Proton transfer d = Electrophilic addition b = Lewis acid/base e E1 Elimination c = Radical chain substitution f = E2 Elimination Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a -i for your answers. 1. NaOCH3 Br Major product HBr Methanol + HOCH 3 + NaCl gSN1 Nucleophilic substitution h = SN2 Nucleophilic substitution

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question 6
(10) The following can undergo 1,2- or 1,4-addition reactions. Predict the major organic product from each reaction. 1. LiAlH4 2. H+ 1. CH3S- +Na 2. H+ 1. KCN 2. H+ 1. (CH3CH₂)2CuLi 2. H 1. CH3CH₂MgCl 2. H+
1. 2. CH3 a 1. www 2. CH3 + Br a = Proton transfer b = Lewis acid/base c = Radical chain substitution HCI مار Na benzene, reflux CH₂ d CI d Radical chain addition e = Electrophilic addition f = E1 Elimination 4 HO-CH + NaBr Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answers. g = E2 Elimination h = SN1 Nucleophilic substitution i = SN2 Nucleophilic substitution
1. 2. H₂C 1. MeO 2. -CH3 H₂O a = Proton transfer b = Lewis acid/base c = Radical chain substitution H3PO4 80° MeO CH3 H₂COM₂ CH3 d = Radical chain addition e = Electrophilic addition f = E1 Elimination H₂O Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answers. g = E2 Elimination h = SN1 Nucleophilic substitution i = SN2 Nucleophilic substitution
Choose the correct answer from the ff. choices
Suppose you are given the starting molecule shown below. For each of the cases listed below, list the reaction conditions and reagents that would give that product, and give a brief explanation of why ONLY the specified product would be formed under the conditions you chose. Make product alcohol with OH group at carbon 1. Make product alcohol with OH group at carbon 2. Make product alcohol with OH group at carbon 3. а. b. 3 2 C.
H₂C CH₂ 2 c CH₂ 1. Reaction A is a radical process. The part of the mechanism that is represented above is called [blank1] would immediately follow [blank2] A. a. nucleophilic attack; hydrogen abstraction b. homolytic attack; hydrogen abstraction c. hydrogen abstraction; homolytic cleavage d. nucleophilic attack; homolytic cleavage 2. Radical mechanisms begins by which of the following events: a) homolytic cleavage b) heterolytic cleavage c) extreme heating or exposure to light irradiation. d) nucleophilic attack 3. Rank the following radicals from most stable to least stable: CH H₂C A CH₂ a) D > C>A>B b) B>D>A>C c) D> B>A>C d) C>A>B>D H₂C B CH₂ H₂C" CH₂ C CH3 H₂C CH D CH₂
1. 2. Ph 1. Ph OH a Proton transfer b = Lewis acid/base c = Electrophilic addition 2. + Na CN NMe₂ DMF H₂SO4 Ph Ph H3C H CH3 H CN OH NM²₂ Tamoxifen anti (brest) cancer drug Ph d E1 Elimination = e = E2 Elimination Ph NMe₂ 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. f = SN1 Nucleophilic substitution gSN2 Nucleophilic substitution
Criteria for satisfactory score Reactants, products, and reagents that complete a reaction scheme must specific compounds, not generic categories. Reagents and structures must be valid Lewis structures. Tasks Complete the synthetic sequences by drawing products/substrates/reagents in empty spaces in reactions below. 1. t-BUOK, heat 2. Br2 (1 equiv) methanol (solvent) Br 1. O3 2. Me2S 1. Hg(OAc)2, H2O 2. NABH4
to to 1. N(CH3)3 HN(CH3)3 CI :0: Na 2. + NaCl Proton transfer = Electrophilic addition g = SN1 Nucleophilic substitution a = b = Lewis acid/base e = E1 Elimination h = SN2 Nucleophilic substitution c = Radical chain substitution f= E2 Elimination Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answWers. 1. 2.
H,SO4 1. H20 n-Bu Na NH2 2. -CN CN 2 Br NaBr NH3 toluene, reflux n-Bu a = Proton transfer d = Radical chain addition g= E2 Elimination b = Lewis acid/base e = Electrophilic addition h = Sy1 Nucleophilic substitution c = Radical chain substitution f=El Elimination i = SN2 Nucleophilic substitution Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answers. 1. 2.
Identify the mechanism by which each of the reactions above proceeds from among the mechanisms listed. Use the letters a - i for your answers.