(9 points) 1. In each case, draw all reasonable resonance forms. Circle the most stable (plus...
(9 points) 1. In each case, draw all reasonable resonance forms. Circle the most stable (plus any ties). (a) (b) (1 pt) 2. For the following Diels-Alder reaction, label the Endo and Exo products. Circle the major product.
CHEM 2535 Problem Set #8 Group 2 10 points Due: Nov 8, 2019 Name Open book, open notes. Collaboration encouraged but not copying. Write responses on this sheet (9 pts) 1. In each caso, draw all reasonable resonance forms. Circle the most stable (plus any ties). 0: CH3 -C :O-CH₂ ( 11) 2. For the following Diels-Alder reaction, label the Endo and Exo products. Circle the major product D. Coche Sims come
3. For a) [CH3CH2C(-O)CH2l b) [CH3NHCHCHCH21 1) Draw their possible resonance forms as the Line-Angular structure. 2) Predict the product of the acid-base reaction between more stable resonance forms. Use the curved arrow to show the movement of electrons 3) Predict the product of the acid-base reaction between less stable resonance forms. 4) After comparing the reaction mechanisms and its products of 2) and 3). describe your opinion on the difference of stability of product.
3. For a) [CH3CH2C(-O)CH2l b)...
Critical Thinking Questions 1. Draw the structure for the product from the reaction of 1,3-cyclohexadiene and maleic acid (cis-2-butenedioic acid). 2. What is the product expected from the reaction of 1,3-butadiene and 3-sulfolene? Why is this not a major concern as a by-product? Part B, the dimer dicyclopentadiene is a possible contaminant of cyclopentadi- ene. It is also a diene. Can dicyclopentadiene undergo reaction with cyclopentadi- ene? Can dicyclopentadiene act as a diene and undergo reaction with the anhydride 3....
1. Draw the product(s) of the following reactions. Include stereochemistry when relevant. If stereoisomers are formed then draw out and label the relationship between your structures. Ph-N3 40°C HN-NH2 SACOMe 150 °C d. CO2CH3 210 °C нсОСН3 In hv ZI 160 °C OBn 85 °C OBn OBno= o 1 equiv. CI K2CO3 heat PhCH N= H 1. LDA (1 equiv.) P 2. Ph Ph 3. aqueous work-up heat EtOH NaOEt 2. Draw the mechanism for the following transformations. I Н...
ch 22
Draw the most stable resonance form for the intermediate in the following electrophilic substitution reaction. In progress OCH OCH3 CH3CI / AICI: HC • You do not have to consider stereochemistry • Include all valence lone pairs in your answer . In cases where there is more than one answer, just draw one С P he (1 (Review Topics (References Draw the most stable resonance form for the intermediate in the following electrophilic substitution reaction. CHE -CH₂ CH,CI...
1. For the following: Draw at least the MAJOR (most stable) resonance structure of each compound. Fill in nonbonding electrons and make sure you can perfectly draw the bond-line structure of each functional group shown (nitro, aldehyde, etc) CO2Me C0 Meo CN NCCO2Me
1. (4 pts) Rank each of the following carbocations in order of stability (1 most stable and 4 least stable). н н сH н Н,с Н,с" H сH; CH3 Hас- H 2. (6 pts total; 2 pts each) Complete the following transformations by indicating the reactant structure or the major organic product(s). Place your answer(s) in the space provided. Be certain to indicate stereochemistry where applicable. Cl2 Он cat. H2SO H-о Br Br conc. HBra) сн сна 3. (10 pts...
1. For each molecule below, draw the most stable enolate that forms upon reaction with NaOH. ¢ i al do
[Review Topics References Draw both resonance structures of the most stable carbocation intermediate in the reaction shown. + HBO • You do not have to consider stereochemistry, . Do not include anionic counter-ions, e.g., I, in your answer. • 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. . CO /.000- Draw the two major products obtained in the reaction shown....