We mentioned in the chapter opener (p. 1198) that tetrodotoxin has been synthesized using a Diels-Alder reaction. The one incorporated in the synthesis by M. Isobe involved the following diene and dienophile. Draw the curved arrow notation for this reaction. Br Br
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- Which of the following compounds cannot react as a diene in a Diels-Alder reaction ( question to the E3 image)Draw the diene and dienophile that are needed to prepare the following Diels-Alder product. Diene: draw structure. Dienophile: draw structure ..Intramolecular Diels-Alder reactions are possible when a substrate contains both a 1,3-diene and a dienophile, as shown in the following general reaction. , two new rings With this in mind, draw the product of the following intramolecular Diels-Alder reaction. draw structure .
- Which of the following compounds can arise directly from a Diels-Alder reaction? Circle any structures that can. Then, identify the appropriate diene(s) and dienophile(s) that would lead to the compound. Pay attention to E-/Z- stereochemistry in all of the reactants. For those that cannot undergo a Diels-Alder reaction, please explain why.For the following structure, propose the starting materials necessary to form it through a Diels- Alder reaction. Hint: You may need to pay attention to the configuration of the dene and or dienophileI know the product and the arrow pushing for both reactions, but I need assistance with the FMO energy diagrams. I know the first one is a normal Diels alder reaction and the second one is Inverse electron demand Diels–Alder reaction. But, I am confused about how to draw them out.
- Click the "draw structure" button to launch the drawing utility. Draw the diene and dienophile that are needed to prepare the following Diels-Alder product. Diene: Dienophile: draw structure ... draw structure ...Consider a traditional Diels Alder reaction noting it's methodology and synthetic tactical. Then propose an alternative, greener synthetic route to make the same product with near or same enantioselectivity.The A ring of cortisone (a steroid) is formed by a Diels–Alder reaction using the two reactants shown here. What is the product of this reaction?
- 1. Circle the aromatic molecules NOTE: bicyclic compounds with just one aromatic ring are still considered aromatic molecules 2. Provide the major organic product of the following Diels-Alder Reaction. NCWith this in mind, draw the product of each intramolecular Diels-Alder reaction. ÇOOCH, a. b.2. Please rank the following dienophiles in their rate of reaction with the same diene in a Diels-Alder reaction (i.e. 1= fastest or most reactive dienophile, 4 = slowest or least reactive dienophile). Put your answer on the line below each structure. 3. Please rank the following dienes in their rate of reaction with the same dienophile in a Diels-Alder reaction (i.e. 1= fastest or most reactive diene, 4 = slowest or least reactive diene). Put your answer on the line below each structure. OMe OMe OMe |