For the nitration of methyl benzoate, draw the sigma complex (the reactive intermediate) which results from...
Draw the reaction mechanism for the nitration of methyl benzoate to methyl nitrobenzoate, please show all resonance structures for each possible substitution position to explain why methyl m-nitrobenzoate was the favored isomer.
Table 1: AM1 Energies of the carbocations formed from nitration of the named compound (kcal/mol) ortho meta para Toluene (S = CH3) 221.74 224.49 219.04 Phenol (S = OH) 179.10 193.32 177.44 Trifluorotoluene (S = CF3) 95.17 90.06 93.56 Methyl benzoate (S = CO2CH3) 160.00 159.34 159.34 Using the table answer the following questions. 1 a. The carbocation intermediates are good models of the transition states for the corresponding aromatic reactions. When looking at the transition state energy of two...
draw a mechanism for methyl 3 benzoate 2. For the nitration of methyl benzoate: Which product did you get? What evidence doyou have for this? Wasyourproduct pure? Whatevidence do you have for this? Explain your a. b. evidence. c. Draw the mechanism for the product you got. d. Calculate percent yield. Show your work
5. When benzamide (the reactant shown) is treated with the acylium cation electrophile shown (generated by combining concentrated acetyl chloride and aluminum trichloride), the first step of the reaction involves the benzene ring attacking the carbocation to form a sigma complex intermediate. (This curved arrows have been included in the reaction below.) Draw the sigma complex intermediate (including all resonance structures) resulting from meta attack (acyl group adds to meta carbon) and para attack (acyl group adds to para carbon)...
1. Draw all the resonance forms of the sigma complex formed by nitration of p-xylene.
Please answer questions completely and clearly. Will leave a LIKE when done so. Thank you. 2. Compound A undergoes electrophilic aromatic substitution. a. A reacts with E' at the ortho and meta positions. Draw the other resonance structures of the ortho and meta intermediates Et+ b. Is Compound A an ortho, para director or meta director? Give reasons c. You used salicylic acid in a nitration reaction in Lab 4c. Describe a synthesis of salicylic acid from phenol. State the...
DRAW the four major resonance structures of the sigma complex intermediate in the reaction of anisole with HNO3/H2SO4 to yield p-nitroanisole.
DRAW ALL THE RESONANACE STRUCTURES THAT WOULD RESULT FROM ELECTROPHILIC AROMATIC SUBSTITUTION OF THE ORTHO, META, AND PARA POSITIONS OF THE AROMATIC COMPOUND SHOWN BELOW. IDENTIFY ANY PARTICULAR STABLE OR UNSTABLE INTERMEDIATES AND DETERMINE IF THE SUBSTITUTION IS ORTHO, PARA, OR META DIRECTING BASED ON THE RELATIVE STABILITY OF THE INTERMEDIATES. -t Br meta.
4 (6 pts) For each of the following compounds, indicate which statement (A-E) best describes the reactivity of the benzene ring in electrophilic aromatic substitution reactions (e.g., nitration). A. The ortbo and para positions are activated and the meta position is deactivated. C. The ortho and para positions are deactivated and the meta position is activated. A. All positions are activated -ortho and para are more activated than meta. D. All positions are deactivated -ortbo and para are more deactivated...
5. Toluene undergoes nitration at the Ortho position to produce a nonaromatic, resonance-stabilized, carbocation intermediate, which loses a proton to form a neutral substituted product. Complete the reaction mechanism below showing movement of electrons and all possible resonance structures for the carbocation intermediate. (4 points) 5. Toluene undergoes nitration at the Ortho position to produce a nonaromatic, resonance- stabilized, carbocation intermediate, which loses a proton to form a neutral substituted product. Complete the reaction mechanism below showing movement of electrons...