Predict the product in each of the following Diels-Alder reactions. Predict the product in each of...
Questions 1. Why does the trans conformation of a diene, in reaction with a dienophile, not lead to a Diels-Alder reaction product? 2. Complete the following Diels-Alder reactions. Provide the major endo-product(s). Dienophile Product(s) 3. How many i electrons are there in a molecule of 1,3-butadiene?
Draw the correct product for the following Diels�Alder reaction: Draw the correct product for the following Diels- Aider reaction: The Diels- Alder reaction reacts a diene and a dienophile to form a cyclohexene with two new sigma bonds and a new pi bond. Identify the new bonds in the product.
For the following diels-alder reaction, identify the diene, the dienophile, and the diels-alder adduct For the following diels-alder reaction, identify the diene, the dienophile, and the diels-alder adductFor the following Diels?Alder reaction, identity the diene, the dienophile, end the Diels?Alder adduct.
provide the required diene and dienophile for each of the following Diels-Alder reactions (12 pts) Provide the required diene and dienophile for each of the following Diels-Alder reactions HNO2 a) -OMe H Me NMe2 Me b) OMe Me NC Me Me Me OMe c) NC Me
(2) Diels-Alder reactions of a diene with a dienophile are known to undergo a concerted reaction. However, 2,3-Di- tert-1,3-butadene does not undergo Diels-Aider reactions. Explain 2,3-di-tert-1,3-butadiene (4) Propose mechanisms for the following steps 1 and 2. Slep 1 Step 2 Bry Br NaBH CH acetic acid (I) Using> as a symbol, rank the following alkyl bromides in order of decreasing reactivity. (6 pts) Br Cн,Br -Br (a) For hydrolysis by an Sy1 mechanism (b) For hydrolysis by an S,2 mechanism...
29. Predict the product for the following reaction. CH,CH SNa 30. Predict the major product for the following reaction O+ HCI 31. Predict the major product for the following reaction. HBr 32. Which diene and dienophile would react to give the following Diels-Alder product? 33. Provide the structure of the major products) for the following reaction Br2 29. Predict the product for the following reaction. CH,CH SNa 30. Predict the major product for the following reaction O+ HCI 31. Predict...
Post- Laboratory Questions: 1. Draw the product of the following Diels-Alder reactions 2. What starting materials would be used to prepare the following compound by the Diels- Alder reaction? 3. Cyclopentadiene dimerizes easily. Before using cyclopentadiene in a reaction, it is necessary to crack the diene. Draw the Diels-Alder reaction for the dimerization of cyclopentadiene. 4. What are the products of the following Diels-Alder reactions? Show the stereochemistry where applicable
Diels-Alder Reaction: Provide the requirements for a diene and a dienophile for an optimal Diels-Alder reaction. Can naphthalene be used as a diene for a Diels-Alder reaction? Explain your answer.
1) Predict the major product of each of the following Diels-Alder Reactions 2) What compound could be used to make the product below in an intramolecular Diels-Alder Reaction? O,
I. Conjugated dienes undergo Diels-Alder reaction and form 6-membered rings. In order for this reaction to occur, the diene must be in the S-cis conformation and an alkene (dienophile) preferably with an electron-withdrawing group. EWEW EW Diene S-cis conformation Dienophile racemic product Indicate which of the following compounds can function as the diene in Diels- Alder reaction and why: doo coa 10) The rates of Diels-Alder reaction of the compounds below are compare with that of 1,3butadiene. Please explain the...