Complete each reaction sequence below by filling in the boxes for reagents and intermediate structures. For each reaction, provide the class of pericyclic reaction (electrocyclic, cycloaddition, sigmatropic), classify the type (ring opening, ring closing, or a numerical class), and give any relevant information such as con- or disrotatory. OCH3 OCH, OCH3 Classify: Classify:

Complete each reaction sequence below by filling in the boxes for reagents and intermediate structures. For each reaction, provide the class of pericyclic reaction (electrocyclic, cycloaddition, sigmatropic), classify the type (ring opening, ring closing, or a numerical class), and give any relevant information such as con- or disrotatory. OCH3 OCH, OCH3 Classify: Classify:

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...

See similar textbooks

Similar questions

N(CH2CH3)3 + HNO3 --------> a.) rewrite the reaction using bond-line structure of reagents and products of the reaction b.) supply the curved arrows explaining the mechanism of the reaction
Q2- Which one of the following reaction is unreasonabl? A) NaOH(aq)+HCl(aq)-NaCla+H₂O B) H2(g)+1/202)→ H₂Op AHneutralization=-851.5kJ/mol =-283.5kJ/mol AHormation C) CH3COOH + H₂O-CH:COO(g) + H AHassociation = +213.5kJ/mol D) Mg(+2HCl → MgCha) + H₂ - AHformation =+315.5kJ/mol Q3- If A 25.0 mL of diluted bleach solution has required 30 mL of 0.30 M Na S,O; to reach the endpoint of the titration. Calculate the mass percent of NaCIO in the original sample (Molar mass NaCIO = 74.5 g/mol). Assume the density of bleach solution is 1.084g/mL and the dilution factor is 10. B) 9.96% C) 0.996% D) 12.4% A) 19.92% and the colo
Consider the reaction scheme below. (i) H3COCHN CO₂Et A H₂N OH EtO OEt B C6H₁1 NO2 base Ha Identify the reagent(s) and conditions A and the intermediate B in this reaction scheme.
The accepted mechanism for a rearrangement reaction is shown below. "Q Ph (1) (ii) Ph Ph HO™ fast Ph Ph HO O™ slow Ph aufae .Ar² LOH HO™ fast Draw a curly arrow mechanism for this transformation. Sketch an energy profile for this reaction, showing approximate relative energies for the reactants, intermediates, transition states, and products. HQ Ph (iii) When DO™ was used as the reagent, the rate of product formation was same as for HO™. Explain why this result shows that the third step is fast and cannot be rate-determining. Ph (iv) Write the predicted rate equation for this mechanism, and show how it was derived. (v) The starting diketone may have two different aryl groups, as shown below. Propose a ¹³℃ labelling experiment that would allow you to distinguish which of the two aryl groups had migrated in this situation. OH AR²0- Ar¹ C C
What is the Potential energy diagram for this reaction. Pls draw with as much detail as possible. labels and scale) 2-methylpropan-2-ol ---> 2-methylpropene +H2O Draw the potential energy diagram for the reaction of 2-methylpropan-2-ol ---> 2-methylpropene + H20 (1) Label the structures of the (a) reactants, (b) intermediates, (c) transition states, (d) products, and (e) activation energies (E.) for each step. (2) Which step is the rate-determining step? (3) Identify the electrophile and nucleophile in each step when applicable.
6. Complete reaction scheme below indicating reagents, catalysts and conditions, and side product trigil bezinslog si6101fon 290b 1l (b Senines levirba 6 gaubong nasamots gniwollot ads to doinW 01 sniowl (6 CH3 40 CH3 Scansgowi (d Ege nodie) ( nsgyxo (b NO₂ 19m02 2i gniwollet sits to mainW II HO
Consider the reaction and answer the questions that follow. CH-CH2- CH2-I • CH,S° CH3- CH2- CH2-S– CH; + CH3-CH= CH2 Product A Product B O Explain which type or types of mechanisms (Sw1, SN2, E1, and E2) are applicable to this reaction. [") How can you increase the percentage of Product A? [ui) How can you obtain Product B as almost the only product? A. [i] SN2 & E2 [ii] Use better nucleophile [iii Use a non-nucleophilic base B. [i] SN2 & E2 [ii] Use higher Temperature [iii] Use a non- nucleophilic base C. [i] SN2 & E2 [ii] Use lower Temperature [iii] Use a non-nucleophilic base D. [i] SN1 & E1 [ii] Use lower Temperature [iii] Use a non-nucleophilic base
In each reaction box, place the best reagent and conditions from the list provided. 1) Br 2) 3) 4) DEET (the active ingredient in over the counter insect repellant) 5) Answer Bank Mg, Et,0 HN(CH, CH, ), (1 equiv.) H,O* CH,COOH CH,CH,NH, CH,CH, Br NH(CH,CH,),(2 cquiv.) НСООСH, H,CO НСООН CH, CH, OH NaCN NaNH, Br,, FeBr, SOCI, CO,
122. For the following three step conversion of A to B, the appropriate sequence of reactions is A OH CAREER ENDEAVOUR B CHO (a) MnO₂; (CH₂OH),/p-TSA; PCC (b) PCC; MnO₂; (CH₂OH)₂/p-TSA; (c) PCC; (CH₂OH)₂/p-TSA; Jones' reagent (d) Jones' reagent; (CH₂OH)₂/p-TSA; MnO₂.
Consider the reaction scheme below. (a) Name the reagent and conditions necessary for steps I to VI above. (b) Write balanced equations for step I to VI above. elow. 4. Consider the reaction scheme below. CH, CH CH₂CI III --------ပုံ CH₂OH CHÍNH, VI CH₂NHCOCH,CH, (a) Name the reagent and conditions necessary for steps I to VI above. (b) Write balanced equations for step I to VI above.
2. Provide the mechanism for the reaction illustrated below. Show the relevant intermediate/transition state. Br N2OH
H3C a. (6 points) Provide the curved-arrow mechanism for the first halogenation reaction; reaction intermediates are provided. H H e.. : OH Na H₂C H :|-| H3C