A Horner-Emmons reaction is depicted below. Draw the major product and answer the following multiple-choice questions. Select Rings Draw More Era
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- 7. Which of (a)-(d) is least likely as an intermediate or product in the following reaction? CH cat. H* + HONH2 А. В. С. D. HO NHOH Ht OH N. но ONH2 HO N `H `H. H.OH H 1. CH3MgBr 2. H30* 'CH3 Epoxides react with Grignard reagents to yield alcohols. Draw curved arrows to show the movement of electrons in this step of the reaction mechanism. Arrow-pushing Instructions H H ö: .. Hi CH3 CH3 :O: IlThe major product that would form from the presented reaction scheme is .?
- 1. Which of the following energy diagrams shows a step-wise endergonic reaction? a. reaction coordinate b. reaction coordinate C. reaction coordinate d. none of these 2. What term most accurately describes the process below? Br Br b. coupling 3. For the following reaction step, indicate which pattern of arrow pushing it represents. a. hydrogen abstraction cc. initiation d. halogen abstraction a. proton transfer b. rearrangement c. loss of leaving group d. nucleophilic attack kJlmol free energy, KmolIdentify the nucleophile in the reaction given I II III IV VWhich of the following represent the reagents in the correct order for the synthesis of the target molecule? 1. CH3COCI, AlCl3; 2. HNO3, A 2SO4 1. HNO3, H2SO4; 2. CH3COCI, AlCl3 В 1. CH;CO2H, AlICl3; 2. HNO3, H C 2SO4 1. HNO3, H2SO4; 2. CH3CO2H, AlCl3 D NO2 1) CH3 2)
- Which rearrangement would the two example of carbocation below most likely undergo? a. Methyl shiftb. Hydride shiftc. Paradigm shiftd. Equilibrium shift3. Two reactions are given below. One reaction leads to product and the other does not and the starting material remains unreacted. i) CI NaOCH3 HOCH 3 ii) NaCl OCH 3 HOCH3 a. Draw a complete reaction scheme clearly showing all intermediate products in the space below for the reaction that proceeds to product. b. Draw a reaction coordinate diagram for the forward reaction above from the starting material given to your product showing all intermediates produced along the reaction coordinate. Be sure to label your axes and to think about how the potential energy changes along the reaction coordinate.For Nos. 63-70 Choose: A -if the indicated property/behavior in item I is greater than in item II B-if the indicated property/behavior in item I is less than in item II. C- if the indicated property/behavior is equal in item I and item II. D- if the indicated data is insufficient to make a comparison. 63. Reactivity toward Nucleophilic Addition Reaction I. FCH₂CHO II. CH3CHO
- II. Draw the MAJOR product(s) of the following reaction. 1) O3 2) DMS 3) excess LАН 4) H20 1. 1) NaBH4, MeOН 2) TSCI, pyridine 3) NaSH H 1) Hg(OAc)2, H2O 2) NaBH4 3) Na2Cr207, H2SO4, H20 1) BH3•THF 2) НаОг, NaOH 3) РСС, СH2CI2 4. 2. 3.A -if the indicated property/behavior in item I is greater than in item II B-if the indicated property/behavior in item I is less than in item II. C- if the indicated property/behavior is equal in item I and item II. D- if the indicated data is insufficient to make a comparison.Help with organic chem 1