To determine the molecules that underwent a Diels - Alder reaction , first location a six membered
ring with an alkene. Next disconnect the sigma bond that are between two and three carbons away from alkene.
The part of the molecule with the alkene in the cyclohexane ring will be the diene. The other part will be the dienophile
this compound is made by the Self- Diels - Alder of 2-methyl - 1,3 butadiene.
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5. What starting materials would be used to prepare the following compound by the Diels-Alder reaction?...
4. What starting materials would you use to prepare the following vial a Diels-Alder reaction?
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
5. Provide the starting materials that could be used in a Diels-Alder reaction to produce the following products. HC a) H0 cal b)
3). Provide products of the following Diels-Alder reactions (include stereochemistry) 4). What starting material would be necessary to prepare the following compound by Diels-Alder reaction?
2) Predict the starting materials for the following Diels-Alder product: ० H क 3) Some highly fused ring systems can be made through an intramolecular Diels-Alder reaction. Suggest a mechanism for the following reaction:
5 Fage 5 Which of the following dienes react faster in a Diels-Al explanation. in a Diels-Alder reaction? Give a BRIEF [3 marks) b. A number of highly conjugated organic compounds have the more widely used is 4-methylbenzylidene cam shown below. Suggest a simple synthesis of this compound condensation. Clearly indicate the starting materials and unds have found use as sunscreens. One of benzylidene camphor (4-MBC), whose structure this compound using a crossed aldol materials and reagents and conditions. Hz...
Choose the correct starting materials for the following Diels-Alder product: -CN CN
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,
What is Diels-Alder and retro Diels-Alder reaction? Write the mechanism of Diels-Alder reaction with an energy diagram.
Choose the correct starting materials for the following Diels-Alder product: X CHO CHO O CHO Y CHO CHO