5. Tropone (A) is much stronger base (conjugate acid more stabilized) than the open chain, conjugated ketone (B), both shown below. Please explain briefly why this observation makes sense. H2C: CH2 A
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- For the following groups of molecules (labeled A-C), rank the acidity of the molecules in order from least acidic (3) to most acidic (1). Explain your reasoning.1.Explain why pyridine ( Kb=2.3x10-9) is a much stronger base than pyrrole (Kb=2.5x10-14), 2.Explain and illustrate, why it is difficult to perfom Friedel-Craft reactions on unactivated pyridine.Please answer this NEATLY, COMPLETELY, and CORRECTLY for an UPVOTE. Arrange the intermediates below in order of increasing basicity:
- Why is the chlorine in the ortho position less acidic than the one in the para position? Please explain in detail.Rank the following compounds in order of increasing acidity (1 = least acidic, 3 = most acidic) and in the space provided use resonance (of the conjugate base) to explain why the compound you have labelled “3” is the most acidic.The pKa of our product is ~ 2-3 units lower than the pKa of phenol. Draw all possible resonance structures of the conjugate base of the product, and use these to explain why our product is so much more acidic than phenol.
- Amides are weak nucleophiles but their conjugate bases are string nucleophiles. The amide drawn below can be deprotonated in four possible locations, labeled A-D but two are considerably more acidic than the others. Draw the two different Bronsted Lowery acid/base reactions (using HO- as the BL base) showing the deprotonation at these two locations. Draw all RS with arrows for both conjugate bases but no hybrids. Based on your resonance analysis which location is the most acidic in the molecule? Why is it most acidic? Amides can also be protonated by a strong acid in two different locations. Draw two different conjugate acids for the amide above as well as RS with arrows for each. Based on your resonance analysis which atom is the most basic in an amide?Can you choose the right answer in each bracket? Inside the box (final step), [ester / ketone / amine / amide] functionality acts as a [ electrophile / nucleophile / acid / base] to attack [ester / ketone / amine / amide] functionality, which serves as a [ electrophile / nucleophile / acid / base]. These will react [intramolecularly / intermoleculary] to afford the [imine/ enamine/ amine / amide] functionality in the target compound.put in increasing basicity order1) (CH3)3NH+2) CH3CH2OH3) CH3CH2NH2
- Rank the following compounds in terms of increasing acidity (least acidic first). Explain your ranking. Making sure to say which hydrogen in each molecule is the most acidic, and discuss the relative stability of the conjugate bases.Which is a stronger acid and has the most stable conjugate base? Estimate the pKA values for both compounds.Molecule 4 was prepared via molecule 3. Provide a complete curved arrow mechanism for the most straightforward conversion to 4. You can use HB+ as your acid and B: as your base