21. Rank the following dienes in order of increasing reactivity in a Diels-Alder reaction, listing the...
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
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
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
20,23,24. Explain why you chose that answer. D. 2-BImobut-1-ene 20. Which of the following is not a feature of the Diels-Alder reaction? They form a new six-membered rings. BO They are initiated by peroxides. C. Three T-bonds break. D. They are concerted. 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 E. II <I<III I<III <II 23. What is the major organic product...
Rand these dienophiles in decreasing order of reactivity in the Diels-Alder reaction. Most reactive = 1, least reactive = 4.
Rank the reactivity order of the following dienes with maleic anhydride, starting with the fastest. II IV 01>IV> III > II II > III >I>IV O III>I>IV> II III > IV>I> II
Rank the reactivity order of the following dienes with maleic anhydride, starting with the fastest. 22 II MIT IV OIV > II >I>II 0 11>IV>I> III OIV > II > III > I 01>IV> II > II
Question 32 (4 points) Rank the reactivity order of the following dienes with maleic anhydride, starting with the fastest. Y II IV IV > II > I > III OIV>II>II>1 O I > IV>I>II OI>IV > II > III
Rank the reactivity order of the following dienes with maleic anhydride, starting with the fastest. saat 11 IT TV Ov> III >I> OII > IV>1>11 Oiv>II>II>I II > III > IV>I Which of the following produces no reaction? OH NaOH CH-HAC CHL* CH3CO, Na+ + FzCCO,H CH3CH2 Lit H-0 Which one of these compounds is soluble in water and turns red litmus paper blue? 1-propanol ethylamine p-methylbenzoic acid aniline
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...