Provide a product for the following reaction taking into account the stereochemical implications of the Diels- Alder reaction. A show work. don't give Ai generated solution
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- The following Diels-Alder reaction product is an intermediate in the synthesis of cholesterol. Provide the structure of the major product. Show stereochemistry when applicable. Hint: there are two possible dienophiles, which one is the better dienophile? Provide a brief explanation of your choice. CH,O.The following triene undergoes an intramolecular Diels-Alder reaction to give a bicyclic product. Propose a structural formula for the product. Account for the observation that the Diels-Alder reaction given in this problem takes place under milder conditions (at lower temperature) than the analogous Diels-Alder reaction 0"C Diels-Alder adductFollowing is an example of a type of reaction known as a Diels-Alder reaction 1,3-Pentadiene Ethylene 3-Methylcyclohexene (a racemic mixture) The Diels-Alder reaction between a diene and an alkene is quite remarkable in that it is one of the few ways that chemists have to form two new carbon-carbon bonds in a single reaction. Given what you know about the relative strengths of carbon-carbon sigma and pi bonds, would you predict the Diels-Alder reaction to be exothermic or endothermic? Explain your reasoning.
- A) Write the mechanism and predict the products for the following reaction. Label each product as the thermodynamic product or the kinetic product. Write a few sentences explaining which product would predominate at low temperature and which would predominate at high temperature and explain the reason for this result. HBr ABd B) Choose reagents that would give the following product in a Diels-Alder reaction: C) Predict the major and minor product for the following Diels-Alder reaction:3) Predict the major product for each Diels-Alder reaction. Include stereochemistry where appropriate. ÇOOCH, (а) + CH;O H OCH, (b) CH,O. СНО (c)A very large number of Diels-Alder reactions are recorded in the chemical literature, many of which involve relatively complicated dienes, dienophiles, or both. Predict the constitution of the Diels-Alder adduct that is expected to form from the combination of diene and dienophile below. Draw the structure of the predicted product, including relevant stereochemistry when applicable. If applicable, use the Bicyclic Stamp tool and guide points to draw each structure. Click and drag to start drawing a structure.
- A very large number of Diels-Alder reactions are recorded in the chemical literature, many of which involve relatively complicated dienes, dienophiles, or both. Predict the constitution of the Diels-Alder adduct that is expected to form from the combination of diene and dienophile below. Draw the structure of the predicted product, including relevant stereochemistry when applicable. If applicable, use the Bicyclic Stamp tool and guide points to draw each structure. NH + NC CN X NC CN Click and drag to start drawing a structure.Step 6: Now that you have determined the substrates and mechanism of a Diels-Alder reaction, you will learn how to recognize when you should use the Diels-Alder reaction. In a synthesis reaction, if you are given a cyclohexene product with no other obvious functional group transformations and an electron-withdrawing group two carbons away from the alkene, it is likely made via the Diels-Alder reaction. Deduce the structures of the starting materials to form the Diels-Alder adduct shown. ..... CN CN Diene + DienophileIdentify the expected major product of the following Diels-Alder reaction. (Showmechanism and stereochemistry) please mention proper stereochemistry,
- Draw and discuss the mechanism (with arrows to show electron movements) of the Diels-Alder reaction between anthracene and maleic anhydride. Draw the orientation and phases of the reacting p-orbitals showing how they overlap in a “suprafacial” geometry to form productpart a and b please3. Using the carbon sources provided and any other necessary reagents needed, propose a viable synthesis for the product shown. Your synthesis must include a Diels-Alder reaction. For each step in your synthesis be sure to show the reagents/conditions necessary for that step and also draw the major product expected for each step leading to the product. You will also need to use reactions discussed in previous chapters as well. Carbon Sources Available H₂C=CH2 CH3Br steps wirt or oy holted and Doubiquiti o toubong pimaryborman
