Draw the curved arrow mechanism for this Diels-Alder reaction. ✓ 1 pt Draw the Diels-Alderproduct Including the relativestereochemistry H N: Diene Dienophile
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- Draw the structure of the product of the Diels-Alder reaction below. H3C CH3 O || O || + CH3OC-CEC-COCH3Compounds P and Q can undergo a Diels-Alder reaction to form two regioisomeric products R and S as shown in Figure 5. OMe O C8H12O2 R C8H12O2 S Figure 5 Draw the chemical structures of regioisomeric compounds R and S. Using possible resonance contributors of P and Q predict which of the two regioisomers will be favoured in the reaction. Using curly arrows, draw the mechanism for the reaction of P and Q to form the dominant regioisomer you have predicted in your answer to part (ii) above.10. The following compound was produced in a Diels-Alder reaction. COOH a) How many sp³ hybridized carbons are in this molecule? b) Is this molecule chiral? c) Are the carboxylic acid substituents electron donating group or electron withdrawing group? d) Draw the diene and dienophile which would react together to give this product.
- Predict the regiochemical outcome (major product) for the following Diels-Alder reaction: anddich? [ Draw Your Solution2) A Diels-Alder reaction yields the following compound. Please write the structure of diene and dienophile, and synthesize the dienophile from a starting material with no more than four carbon. "CO₂Et4) Identify the reagents to prepare the following compound via Diels-Alder reaction Coalf DI Caotl a) X + .wolt •Looft b) x + you to c) of + Xco coot الاك d) None
- How do you draw the diels-alder product for this with stereochemistry? How do you know they are cis?in a diels-alder reaction involving 2,3-dimethyl-1,3-butadiene and maleic anhydride, which is the diene and which is the dienophile?Alec wanted to prepare to diene B to use in a subsequent Diels-Alder reaction. He thought he could prepare it via the reaction shown below. However, treatment of the diol (A) with acid yield either ketone (C) as the major product. H,SO, HO IPh Нeat Ph Ph OH B C a. Give a detail account of how you would determine whether product of the reaction was B or C. Assume that the only method available to you is FT-IR. You must give values for all features of all spectra. b. Provide a detail mechanism as to how compound B and C are formed under the reaction conditions. ..
- Cyclopentadiene is unusually acidic for a hydrocarbon. Which of the following explains why that is? The carbon atoms of cyclopentadiene are all sp hybridized. A В Cyclopentadiene is aromatic. Removal of a proton from cyclopentadiene yields an C aromatic anion. Removal of a hydrogen atom from cyclopentadiene yields a highly stable free radical. D Removal of a hydride ion from cyclopentadiene produces an E aromatic cation. H H. cyclopentadieneFuran and maleimide undergo a Diels–Alder reaction at 25 °C to give the endo isomer of the product. When the reactiontakes place at 90 °C, however, the major product is the exo isomer. Further study shows that the endo isomer of theproduct isomerizes to the exo isomer at 90 °C.furan: O maleimide:OON H(a) Draw and label the endo and exo isomers of the Diels–Alder adduct of furan and maleimide.(b) Which isomer of the product would you usually expect from this reaction? Explain why this isomer is usually favored.(c) Examine your answer to (b) and determine whether this answer applies to a reaction that is kinetically controlled orone that is thermodynamically controlled, or both.(d) Explain why the endo isomer predominates when the reaction takes place at 25 °C and why the exo isomer predominates at 90 °C2) Predict the major product for each Diels-Alder reaction. Include stereochemistry where appropriate. H. C=N (a) H H. CH3 CH;O, (b) Ph (c) Ph