1) synthesis
2) Circle any of the follwoing dienes that can react in a Diels-Alder reaction and explain why?
1) synthesis 2) Circle any of the follwoing dienes that can react in a Diels-Alder reaction...
Mapt sapling learning Which dienes will react with ethene in a Diels-Alder reaction? Will react Will not react A B C D E There is a hint available! View the hint by clicking on the divider bar again to hide the hint. Close Previous ⓧ Give Up & View Solution O Check Answer Next Exit Hint Mapt sapling learning Which dienes will react with ethene in a Diels-Alder reaction? Will react Will not react A B C D E There...
Which of the following conjugated dienes would NOT react with a dienophile in a Diels-Alder reaction? B A D с A a
4. What dienes and dienophiles would react to give the following Diels-Alder products 18 pts) 5. Predict the products of the following Diels-Alder reactions. (10 pts) 6. Explain why each compound or ion should be aromatic, antiaromatic, or nonaromatic. (10 pts)
Which of the following dienes can undergo the Diels-Alder reaction? IV TIL = -
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...
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...
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. EW EW U +U Diene S-cis conformation Dienophile racemic product Indicate which of the following compounds can function as the diene in Diels- Alder reaction and why: Cli) The rates of Diels-Alder reaction of the compounds below are compare with that of 1,3butadiene. Please explain the...
7. The following molecule can be made by the Diels-Alder reaction. Show two different methods for making it. In other words, identify 2 different dienes and dienophiles that will react together to give the molecule.
Question 21 (2 points) Which of the following dienes can undergo the Diels-Alder reaction? III IV Oa) III ob) 11 Oc) od) IV Question 22 (2 points) Predict the product(s) of the following reaction. нег ROOR Oa) HBr addition at the alkene position following Markonikov's rule Ob) HBr addition at the alkene position following Anti-Markonikov's rule Oc) H20 addition at the alkene position following Anti-Markonikov's rule od) H20 addition at the alkene position following Markonikov's rule
21. Rank the following dienes in order of increasing reactivity in a Diels-Alder reaction, listing the least reactive first. A. I II III B. III <I<II C. II <I<III D. I<III <II