Provide the missing curved arrows and structures to complete the mechanism of the Fischer esterification. Your structures should include all nonzero formal charges and lone pairs of electrons. The reagents you need for each mechanistic step are provided in each box. 1st attempt H -H + 1 1017 H H See Periodic Table See Hint H :0 H H
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- reaction conditions and follow the curved arrows and draw the intermediate and product in this reaction sequence or mechanistic step(s). Include all lone pairs and charges as appropriate. Ignore any inorganic byproducts. Select to Draw PhCH2Br C:O Br ☑Show Transcribed Text H₂, Pd/C, EtOH MeMgBr (excès) puis H3O+ Me₂CuLi, Et₂O puis H₂O+ Please draw the mechanism step by step ? ? ?Predict the product of the reaction shown and complete the curved-arrow mechanism for its formation. (Hint: Friedal- Crafts alkylations can be used to form rings.) AICI, → a compound C,H2 + HCI PHCH,CH,CH,CH,CI- Step 1: Draw one curved arrow. Step 2: Complete the structure, then draw curved arrows for the EAS reaction. Select Draw Rings More Erase Select DrawRings More Erase H Al Cl H Al Cl : C : Al : d :
- This reaction is an example of conjugate addition of a nucleophile to an a,ẞ-unsaturated carbonyl. O CH3CH2CH2CH=CHCSCOA H₂O OH CH3CH2CH2CHCH2CSCOA Draw the two resonance structures of the enolate anion intermediate for this reaction. • Draw an R1 group in place of COA. The R group tool is located in the charges and lone pairs drop-down menu. • 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. ->> 90-87 O + ? ChemDoodle >A student proposes the following reaction mechanism for the reaction in Model 6. Which step inthis mechanism is least favorable? Explain your reasoning.Curved arrows are used to illustrate the flow of electrons. Use the reaction conditions provided and follow the curved arrows to draw the product of this elementary step in an E1 mechanism. Include all lone pairs and charges as appropriate. Ignore stereochemistry. Ignore byproducts. H₂ 0.01 M NaOH heat H Drawing Na OH Q
- 3. Provide the mechanism for the following reversible nucleophilic addition. Show all curved arrows and intermediates. cat. H+ H₂O HO OH H H 1) protonate to activate 2) nucl adds 3) deprotonate what staysCurved arrows are used to illustrate the flow of electrons. Using the provided starting and product structures, draw the curved electron-pushing arrows for the following reaction or mechanistic steps. Be sure to account for all bond-breaking and bond-making steps. H H y H H ✪ I CH3OH heat CH3OH heat HH H : Br: O CH3OH heat Drawing Arrowson 6 of 20 Complete the mechanism for the keto-enol tautomerization shown using bonds, charges, nonbonding electron pairs, and curved arrows (forward reaction only). Do not delete any pre-drawn bonds, charges, or lone pairs. If you accidentally delete a vital part of the structure, click the undo button in the lower left. Step 2: complete the structure, then add curved arrows. Step 1: keto form. Draw curved arrows. Select Draw Rings More Erase Select Draw Rings More Erase C -H :0 : :o : 1L