S Cinle ALL of the following which would ahsorb in the UV region Now indicate which...
8. Which of the following compounds will absorb energy in the region UV-Vis of the magnetic spectrum? B O E None of the above 9. What will be the product of the following reaction sequence? Nanti a Ho.h B C OH D E none of the above
Draw all resonance structures (using lewis structure), indicate which would be the major contributing. CH3N2
1. For the following compounds, label each substituent as electron donating or electron withdrawing, and indicate whether this effect is achieved via induction or resonance. ŅO2 H2N SO3H 2. Predict the TH NMR of the above benzene derivatives. For chemical shift, indicate whether the peak would likely be downfield or upfield of benzene (7.2 ppm). (Hint: think about the resonance structures that can be drawn based on your responses from above) A B # of peaks chemical shift indicate: >7.2,...
Name: Assuming each compound is planar, state which of the following compounds are aromatic for each say why (8 points) b) Using curved arrows show how two more resonance structure can be derived for the following (show the derived structure). (2 points) 2. Considering the effect of the substituent on the benzene ring below. Identify the major product of the following reaction. (20 points) a. (5 points) Br2 FeBrg b. What is the active Electrophile for this reaction? (3 points)...
Name: 3 1. Assuming each compound is planar, state which of the following compounds are aromatic and for each say why (8 points). a. b. d. C. HON b) Using curved arrows show how two more resonance structure can be derived for the following (show the derived structure). (2 points) d 2. Considering the effect of the substituent on the benzene ring below. Identify the major product of the following reaction. (20 points) a. (5 points) Hat Аневи Br2 FeBr3...
1. For each of the following provide the structure of the final product(s) expected and state whether the reaction would proceed faster or slower versus benzene standard. Explain your reasoning. (15) HO-NO HO-SO-OH Bra FeBry C. CHÚCH,CH, , AICI, Choose one of the reactions above and provide a complete mechanism leading to your product. If more than one product is expected, the mechanism leading to only one of the products is sufficient. Use all pertinent resonance structures. (10) 2. Below...
Draw the complete mechanism of the following Diels Alder reaction. Include all intermediates and determine which product is formed (Endothermic or Exothermic). or H H endo mp 165-167 °C exo mp 140-145 °C
30. Which of the following is not true about the electromagnetic spectrum? a. ultraviolent light (UV) has a shorter wavelength than does visible light b. the energy of a wave is continuous c. the energy of a wave is proportional to the frequency d. The energy of a wave in inversely proportional to the wavelength True/false 31 The shape of a molecule influences the amount of radiation that can be absorbed 32_ __Carbon atom always forms four bonds 33___Water vapor...
Propose a feasible mechanism for reaction which is occuring under BASIC conditions. Please include all steps and mechanistic intermediates. Use arrows and clearly indicate which atom holds charge. Draw only ONE resonance structure for any charge intermediates! QUESTION 11 Propose a feasible MECHANISM for the reaction shown below, which is occurring under basic conditions. NEATLY & CLEARLY draw all mechanistic intermediates; use arrows correctly to indicate bond making and bond breaking and clearly indicate which atoms(s), if any bear a...
3. Draw the arrow-pushing mechanism of the reaction, including all proton transfer steps. 4. Below is the structure of your product, benzocaine, with protons labelled A-E. The 'H NMR spectrum is provided on the next page. Describe the multiplicity (with J values) and integration you would expect to observe for each of the protons. Which peak would you expect to have a higher chemical shift, C or D? Draw resonance OSO structures of benzocaine to explain your reasoning. NH2E