Consider the two resonance forms of an enolate, and the curved arrow notation showing movement of electrons. Predict the approximate contribution of each resonance structure to the overall resonance hybrid as a ratio of I:lI. A) 75:25 B) 50:50 CH2 CH2 C) 25:75
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- (30) Take a look at the two multi-substituted benzene compounds below. Trinitrotoluene (TNT) has its NO, groups on carbons 2, 4, and 6. Which of the two fits this numerical scheme? Hint: Toluene is a special name for benzene whose primary functional group is a methyl group substituted in place of one of its hydrogens. CH3 CH3 O,N. ZON O,N NO2 NO2 NO2For our Diels-Alder Reaction lab, they asked to provide heat to the structures and I'm a little unsure of what the products will look like, if you can help, please?13) Give the missing products. он ??? 1) он 2) SO/H¿SO, 3) HNO:/H,SO,, 4) H/H,0 ?? b) BryFeBr, ?? Toluene Heat NaNH, ???
- Compounds P and Q can undergo a Diels-Alder reaction to form two regioisomeric products R and S as shown in Figure 5. OMe P H C8H1202 R C8H1202 S Figure 5 Draw the chemical structures of regioisomeric compounds R and S. (ii) Using possible resonance contributors of P and Q predict which of the two regioisomers will be favoured in the reaction. (iii) Using curly arrows, draw the mechanism for the reaction of P and Q to form the dominant regioisomer you have predicted in your answer to part (ii) above.This is not graded. Please, answer no. 22 & no. 23. Thank you.9. Compound X, C40H67Br2F, reacts with excess H₂/Pd to give a C40H73Br2F compound. How many rings are in X? How many double bonds are in X? Show your work. following use ONL Powerpoint slides for? ate/ransition stater for this reaction. We have eck your crea
- Explanation for part C and D.1. The energy of a photon is. proportional to its wavelength and proportional to its frequency. (directly or indirectly) 2. Which of the following has a lower characteristic stretching frequency, the C O bond or the C-O bond? Explain briefly. C=0 3. Ethyne HCECH does not show IR absorption in the region 2000-2500 em-! because. 4. Which statement best explains why a carbonyl absorbs infrared radiation at a higher frequency than an alkene absorption?Please identify the MAJOR contributing resonance structure (MOST significant) in this case: Note: Here MAJOR contributor = the MOST significant contributor. MINOR contributor = the LEAST significant. The INSIGNIFICANT contributors and all other INTERMEDIATE contributors are not considered. Review Chapter 2.8. A E :O: :0: B :0: F G D :0: H