Interpretation:
Major product has to be predicted for the given reaction.
Concept Introduction:
Diels-Alder reaction is the 4+2 addition reaction. Here a total of six pi bonds are involved resulting in formation of one pi bond and two single bonds. Diels-Alder reaction occurs via a single concerted step and not by involvement of ions. If a monosubstituted ethylene is used, the product obtained contains a stereocenter. This can be represented as,
If a cyclic diene is considered, then the product obtained will be a bicyclic compound. Diels-Alder reaction that involves cyclopentadiene results in a bicyclic structure. If the dienophile has a cis configuration, then the two groups have to be in cis configuration to each other. The product obtained will have the groups in endo position. It is a meso compound.
If the dienophile has a trans configuration, then the two groups have to be in trans configuration to each other. The product obtained will have the groups as shown below,
The above two structures are enantiomers.
Want to see the full answer?
Check out a sample textbook solutionChapter 10 Solutions
Organic Chemistry As a Second Language: Second Semester Topics
- Predict the product(s) and provide the mechanism for each reaction below.arrow_forwardpredict the major product(s) for each of the following reactions (do not include stereochemistry in your answer).arrow_forwardpredict the major product for the following reaction include stereochemistry as appropriatearrow_forward
- Identify the major product for the following reaction:arrow_forwardPredict the major products of the following reactions, including stereochemistry where appropriate. (a) potassium tert-butoxide + methyl iodide (b) sodium methoxide + tert-butyl iodidearrow_forwardPredict the major products of the following reactions. the tosylate of cyclohexylmethanol + excess NHarrow_forward
- Predict the expected products of the following reactions, include the appropriate stereochemistry in the structure where necessary.arrow_forwardPredict the major products of the following reactions, including stereochemistry where appropriate. ) cyclopentylmethanol + Na2Cr2O7>H2SO4arrow_forwardPredict the major product of the following reactions. The formulae of the products are given in bold.arrow_forward