Es. -4,5-dimethyloct-4-ene + HBr and H2O2 Use mechanism arrows to illustrate the reaction that occurs. applicable, use stabilization resources to deal with the carbocation, carbon radical, or n that starts to develop during the reaction, and draw the structure of any resonance- H intermediate. ntinue labelling and diagramming the reaction until you find the major stable s).
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- Label the reactive features of the following reactants, select the most reactive feature, thenwrite and highlight what it needs. Also, state if a carbocation, carbon radical, or carbanion willstart to develop, and/or if aromatic character will be lost as a result of a reaction between thesemolecules.(E)-4,5-dimethyloct-4-ene + HBr and H2O29) Suppose I want to perform a simple substitution reaction, replacing the OH with a Cl in the following compound. Which of the following reagents works best? Explain (and that means explain why the wrong answers are wrong as well as why the right answer is right). Option A: Addition of HBr Option B: Addition of SOC12/pyridine Option C: Addition of SOCl2 only OH ? J1a. Label the reactive features of the following reactants, select the most reactive feature, then write and highlight what it needs. Also, state if a carbocation, carbon radical, or carbanion will start to develop, and/or if aromatic character will be lost as a result of a reaction between these molecules. 3,3-dimethylhept-1-ene + BH; followed by H,O, OH, and H,O b. Use mechanism arrows to illustrate the reaction that occurs. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance- stabilized intermediate. Continue labelling and diagramming the reaction until you find the major stable product(s). Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.
- Emarks here on the bookmarks bar. Import bookmarks now... Draw a structural formula for the major product of the reaction shown. H3C ● H3C ● C=CH₂ ctivity.do?locator= assignment-take Br₂ H₂O Show product stereochemistry IF the reactant alkene has both carbons of the double bond within a ring. Do not show stereochemistry in other cases. • If the reaction produces a racemic mixture, just draw one stereoisomer. // [References] O- [F11. a. Label the reactive features of the following reactants, select the most reactive feature, then write and highlight what it needs. Also, state if a carbocation, carbon radical, or carbanion will start to develop, and/or if aromatic character will be lost as a result of a reaction between these molecules. -CH3 + H,SO, b. Use mechanism arrows to illustrate the reaction that occurs. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance- stabilized intermediate. Continue labelling and diagramming the reaction until you find the major stable product(s). Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.4. Synthesis Using the carbon-containing starting material(s), propose a synthesis by drawing structures for all intermediates. The carbon atoms in the product must originate from the starting material(s) (or a carbene/carbenoid or CO₂), but you may use as many equivalents of each starting material as you would like, and any reagent/reaction you know. (note: no mechanisms are required). (a) || محمد b
- 19. a. Label the reactive features, highlight the most reactive one, then highlight what it needs. Also, state if the reaction will start to create a carbocation, carbon radical, or carbanion, or will cause loss of aromatic character. If a carbocation, carbon radical, or carbanion starts to develop, label where that will occur. (2R,3S)-2-bromo-3-methylhexane with sodium ethoxide in DMSO b. Use mechanism arrows to illustrate the reaction that occurs. c. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance-stabilized intermediate. d. Continue labeling and diagramming the reaction until you find the major stable product(s). e. Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.1. What is the function of CH»Ch in the bromination reactions? Why can it fulfil this role? 2. In not more than three (3) sentences, explain why terminal alkynes are acidic. 3. What impurities are removed when acetylene gas is made to pass through an acidified solution of CuSO:? 4. Explain the difference in the rate of free radical bromination reactions of toluene and cyclohexane. 5. Give the reagent er chemical cempounde, Previde only Ehe reasents nu Would differentiate tefel17. a. Label the reactive features, highlight the most reactive one, then highlight what it needs. Also, state if the reaction will start to create a carbocation, carbon radical, or carbanion, or will cause loss of aromatic character. If a carbocation, carbon radical, or carbanion starts to develop, label where that will occur. CH3 with Cl, and FeCl, CH2 CH3 b. Use mechanism arrows to illustrate the reaction that occurs. c. If applicable, use stabilization resources to deal with the carbocation, carbon radical, or carbanion that starts to develop during the reaction, and draw the structure of any resonance-stabilized intermediate. d. Continue labeling and diagramming the reaction until you find the major stable product(s). e. Finally, state the stereochemistry of the major product(s) and use either Fisher projection or perspective formula representations to illustrate that stereochemistry.
- МЕСНANISMS 1,2-epoxy-1-methylcyclopentane undergoes both acid-catalyzed and base-catalyzed opening of the epoxide ring to form two different products. > Using ethanol as the solvent and an appropriate acid, show the steps in the acid catalyzed mechanism, writing structures for all products of the steps. Circle the major product(s). > Using ethanol as the solvent and an appropriate base, show the steps in the base- catalyzed mechanism, writing structures for all products of the steps. Circle the major product(s). 1,2-epoxy-1-methylcyclopentane CH3Be sure to answer all parts. Identify the lettered compounds in the following reaction scheme. This reaction was used in the synthesis of a natural product. HC=CCH,OR' HO CH, Li+ PB13 A LOCOR Draw the structures of compounds A, B, and C. Use R for both R and R' in the structures. Only 1 equivalent of alkyne is being used in the reaction. A draw structure ... в draw structure . draw structure .CH=CHNO₂ (2-nitrovinyl)benzene Electrophilic substitution on (2-nitrovinyl)benzene occurs at the meta position. Draw resonance structures to show how the ring is electron-poor at the ortho and para positions. You do not have to consider stereochemistry. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate resonance structures using the symbol from the drop-down menu. 0 78 00-F k