In Deils- alder reaction, usually the diene is electron rich (the donor) and the dienophile is electron poor (the acceptor). So electron donating substituents decreases the reactivity while electron withdrawing substituents increases the reactivity.
Ch3 grp is electron donating wheres CN and CHO are withdrawing.
So top to bottom order:
1: b
2: a
3: d
4: c
Rand these dienophiles in decreasing order of reactivity in the Diels-Alder reaction. Most reactive = 1,...
Which one of the following dienophiles is most reactive in the Diels-Alder reaction? Group of answer choices: trans-1-methoxy propene propyne 1,4-cyclohexadiene trans-2-butene maleic anhydride
Sort the dienophiles shown below by increasing reactivity in a Diels-Alder reaction with cyclohexa-1,3-diene. No - CN Bro. с в Cyclohexa-1,3-diene 01.0,A,C,B O 2.B,A,C,D O 3.C,B,D,A 4. B, A, D, C
Rank the following dienophile in order of increasing reactivity in a Diels-Alder reaction, listing the least reactive first HH H COOH HOOC COOH Select one: a. III < < b.1 < < o.cl < 11 <1 O d. ll<< III
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
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
Question 29 (2 points) Which one of the following dienophiles is least reactive in the Diels-Alder reaction? NO OCH H3CO TI IV O a) IV Oы) і OI d) III Question 30 (2 points) Which of the following are possible products of the reaction shown? hv NBS Br Br III IV a) I, II, III and IV Ob) I, III and IV O I, II and III O d) I and II
Question 21 (2 points) Which one of the following dienophiles is least reactive in the Diels-Alder reaction? OCH ОСН, Нco. IV a) b) III Oc)!! d) IV Question 22 (2 points) Which of the molecules below would be the expected product for the hydrogenation of the following alkene with Na and liq. NH3? Na NH v III IV a) Ob) II Oc) d) v Question 23 (2 points) Identify the final product for the following reaction. 1. BH3, THE 2....
QUESTION 3 Do you expect this diels-alder reaction to require fairly low temperature, high temperature, or something else? a. temperature will not matter b. high temperature c. very low temperature, below OC to prevent side reactions d. low temperature QUESTION 4 Which is the correct order of reactivity (most reactive to least reactive) toward electrophilic aromatic substitution? QUESTIONS QUESTION 3 Do you expect this diels-alder reaction to require fairly low temperature, high temperature, or something else a temperature will not...
Choose the correct increasing order of the following dienes in terms of reactivity in Diels-Alder reactions: Reactivity in Diels-Alder reactions Reactivity in Diels-Alder reactions 0 Reactivity in Diels-Alder reactions Reactivity in Diels-Alder reactions
Circle the most reactive and square the least reactive. - Circle the most reactive and square the least reactive dienophile in a Diels-Alder Reaction (4 points). لا کر = م ه م - Circle the most reactive and square the least reactive diene in a Diels-Alder Reaction (4 points).