Draw the structure(s) of the major organic product(s) of the following reaction.+THF-78°56If no reaction occurs, draw the organic starting material.• Draw enolates in their carbanion form.• Include counter-ions, e.g., Na*, I, in your submission, but draw them in their own separate sketcher.• For multi-step processes, draw the product(s) of the last step.

Step 1: Step 2: Step 3: Step 4:

Answered: Draw the structure(s) of the major…

Organic Chemistry: A Guided Inquiry

2nd Edition

ISBN:9780618974122

Author:Andrei Straumanis

Publisher:Andrei Straumanis

Chapter26: Aldol And Claisen Reactions

Section: Chapter Questions

Problem 26E

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Alcohols react with sulfonyl chlorides to form sulfonate esters. Only the O-H bond of the alcohol is broken in the reaction, and so no inversion of configuration occurs. The resulting sulfonate esters are reactive in SN1 and SN2 reactions since the sulfonate group is a very weak base and is therefore a good leaving group.Draw curved arrows to show the movement of electrons in this step of the mechanism.
Write the products for (A-I). Label products with the mechanism (Sn2, Sn1, E1, E2) that produced it and write out and label major vs minor elimination products.
1. what is the Nature of the leaving group (LG)? 2. what is the relative size of activation energy (Ea) for each reaction? 3. what is the Hammond's postulate? 4. what are the Relative thermodynamic stability of the reactive intermediates? 5. what is Influence of the solvent (if given) on the reactions and intermediates?
Draw all possible alkenes that could be generated from an E2 elimination reaction of 3-bromo-3-methylhexane. Suggest conditions that can be used to make just one of the alkenes in a controlled manner (i.e., conditions that would lead to formation of just one alkene as the major product).
Show the SN2 mechanism in the reaction between (S) 2-bromobutane and iodide ion. Label the product and draw a enery diagram for this reaction.
1. If (CH3)3CO– is used as the base to form the enolate of the pictured ketone that is provided, there are 2 possible enolates that can form.a. From the three sentences, which parts are true regarding the enolate? Does the enolate form under irreversible or reversible conditions? Is the favored enolate is the more stable or less stable enolate? Is the favored enolate the kinetic or thermodynamic enolate? b. Draw the structure of the major enolate (include both resonance contributors)
Between E1 and E2, which reaction mechanism is most efficient to synthesize the (E) stereoisomer of this product on an industrial scale?
Draw the products of the two step reaction sequence shown below. Use wedge and dash bonds to indicate stereochemistry where appropriate. Ignore inorganic byproducts.
Which is the better retrosynthesis for the given target molecule? Explain, and provide a one-step synthesis of the target molecule. A A is the better starting material because B can form both E and Z alkenes. B A is the better starting material because it will produce only the desired target molecule. C B is the better starting material because only B has β protons in the trans position. D B is the better starting material because A can form both E and Z alkenes. E B is the better starting material because it will produce only the desired target molecule. F A is the better starting material because only A has β protons in the trans position.
Please give the mechanism of all the reaction. Thanks in advance!
Draw the products and necessary reagents of the three step retrosynthetic reaction sequence shown below. Use wedge and dash bonds to indicate stereochemistry where appropriate. Ignore inorganic byproducts. Please choose from the following options for each of the reagents. (top reagents options) A. HNO3, cat. H2SO4 B. SO3, cat. H2SO4 C. CH3C(=O)Cl, AlCl3 D. Cl2, FeCl3 E. H2O, HCl (reagents option to the right) (top reagents options) A. HNO3, cat. H2SO4 B. SO3, cat. H2SO4 C. CH3C(=O)Cl, AlCl3 D. Cl2, FeCl3 E. H2O, HCl
Please help with the following ochem mechanisms.... 1. Provide the stepwise mechanisms for the following reactions (see attached picture)

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