4. What dienes and dienophiles would react to give the following Diels-Alder products 18 pts) 5....
19. [04 pts.] What diene and dienophile would react to give the following Diels-Alder product? dienophile diene 20. [06 pts.] Label each compound as aromatic, antiarobave planar rings. at atic or not aromatic. Assume that those compounds that are completely conjugated a. в-н 21. [04 pts.] Give the systematic name for each of the following compounds. 22. [04 pts.] Draw all possible resonance structures for the following molecule.
1) synthesis 2) Circle any of the follwoing dienes that can react in a Diels-Alder reaction and explain why? Circle any of the following dienes that react in a Diels-Alder reaction and explain why?
Which of the following conjugated dienes would NOT react with a dienophile in a Diels-Alder reaction? B A D с A a
Can you please write the structure of the Diels-Alder products you would expect to isolate from each of the following reactions and explain it step by step so that I can solve problems similar to these. Thank you so much. -- If there are arrows and/or tricks to remember when solving this type of problem, please include. Practice problems: Cyclobutadiene is an extremely unstable compound whose isolation is impossible even at the lowest temperatures routinely accessible in the organic laboratory....
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...
Question 18 1 pts Rank the following dienes in order of increasing reactivity in a Diels-Alder reaction, listing the least reactive first. O III<I<11 O II< < III |< || < III o T< III < 11
18, 22, 23 16) What diene and dienophile would react to give the product below? diere 17) Which of the following compounds is the most reactive dienophile in a Diels-Alder reaction with 1,3-butadiene? A) CH-CHOCH B) CH2-CHCHO C) CH3CHCHCH3 D) (CH3CH2 5) C .CH 18) Using resonance structures, explain the regiochemistry observed in this reaction OCH H.CO heat 19) Provide the major organic product of the following reaction H.CO ÇOCH H.COM 20) Provide the major organic product of the following...
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?
Predict the product in each of the following Diels-Alder reactions. Predict the product in each of the following Diels-Alder reactions. Cyclopentadience reacts as a diene in the Diels-Alder reaction a great deal faster than does 1,3-butadience. Explain. Predict the diene and dienophile that would lead to each of the following products.
Question 10 Which diene and dienophile would react to give the following Diels-Alder product? Edit