3.) For the following intermediates, please draw as many resonance contributors that you can come up with. Then circle the highest contributor and draw a hybrid resonance illustration for each molecule.
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- Give a complete curved arrow. pushing mechanism for this reaction, and... 1) Add non-bonding electrons and C-H bonds to the line-angle structures as required. 2) Indicate the Lewis acid/Lewis base (LA, LB) at each step as appropriate, and whether they are also Brønsted acids/bases (LA/BA, LB,BB) 3) GIVE THE NUMBER OF STEPS IN YOUR MECHANISM To preview the image click here J :0: H OMe 1- H-Al-H H Excess LiAlH4 :0: Li -H H + Li+ :OMeThe structure shown below is has a very high pKa because the conjugate base is very unstable. Using the provided resonance structures, draw the curved electron-pushing arrows to show the deprotonation step. Then, draw the curved electron-pushing arrows to show the interconversion between resonance hybrid contributors. Be sure to account for all bond-breaking and bond-making steps. H Select to Add Arrows CH3CH2CH2CH2Li H Select to Edit Arrows H H LIⒸAnswer the following problem.
- Give a complete curved arrow pushing mechanism for this reaction, and... 1) Add non-bonding electrons and C-H bonds to the line-angle structures as required. 2) Indicate the Lewis acid/Lewis base (LA, LB) at each step as appropriate, and whether they are also Brønsted acids/bases (LA/BA, LB,BB) 3) GIVE THE NUMBER OF STEPS IN YOUR MECHANISM To preview the image click here :0: H OMe 1- H-AI-H H Excess LiAlH4 :0: Li Lit :OMePhenols generally have lower pk, values than aliphatic alcohols owing to phenoxide ion stabilization by resonance that delocalizes charge into the aromatic ring. a Draw all the resonance contributors for the phenoxide ion below. Draw only one of the two equivalent “Kekule benzene" structures. NEC Include all valence lone pairs in your answer. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner.3. For the following set of compounds, box the most basic and circle the least basic.
- 3. Draw the major product in the following reaction and reaction mechanism. Remember when drawing a reaction mechanism, you need to show all nonbonding electron pairs, formal charges, electron flow arrows, and all resonance structures. What is the name of this mechanism? Determine and circle whether the substituent is an activator or deactivator. Explain what is meant by being an activator or deactivator and circle the single resonance structure that supports your decision regarding the substituent in the starting material. OH CH₂CH₂CH₂Br FeBr(That "the" should be an "a")2) For compound 1 shown: a. Draw all the resonance contributors, if any, including proper electron pushing arrows and resonance arrows. A 7-membered ring template is included to get you started." b. Within the box given, clearly draw the resonance hybrid, if any, including partial charges where appropriate. Any ambiguity will be marked wrong. resonance hybrid
- 2) For the following groups of molecules (labeled A-C), rank the basicity of the molecules in order from least basic (3) to most basic (1). Explain your reasoning.This question has multiple parts. Work all the parts to get the most points. The following reaction occurs in two steps. HI Predict the organic intermediate(s) and product(s), and provide the mechanism for the reaction. a.1 Draw the organic intermediate formed after the first step of this reaction. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • You do not have to consider stereochemistry. Do not include counter-ions, e.g., Na+, I-, in your answer. • Do not include lone pairs in your answer. They will not be considered in the grading. Ө ? ChemDoodle >Draw both resonance structures of the most stable carbocation intermediate in the reaction shown. HCI • You do not have to consider stereochemistry. • Do not include anionic counter-ions, e.g., I', in your answer. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Separate resonance structures using the + symbol from the drop-down menu.