Each of these aldol products comes from an enolate donor and a carbonyl acceptor. DONOR АССЕРТOR 1. CHO 2. 3. 4. 5. Write the donor and acceptor from a choice below. e.g if you thought for #2 the Donor was A and the acceptor was B, you would write A, B CHO cote
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- Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol or enone below. You do not have to consider stereochemistry. Draw the enolate ion in its carbanion form. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu.(b) Why is the Claisen-Schmidt reaction a special type of aldol condensation? one of the reactants does not have a β hydrogen one of the reactants is acetone the reaction is base-catalyzed one of the reactants does not have an α hydrogen (b) Aside from having a carboxylic acid functional group, salicylic acid also has which of the following functionality? aldehyde alcohol ester phenolSelf-condensation of acetone is a possible side reaction for the aldol condensation(Reaction 1). Draw the structure of this side product. How is this side reaction minimizedin our procedure written below? Reaction 1 - Experimental Procedure: In a clean, small Erlenmeyer flask, combine your unknownaromatic aldehyde (350 μL (400 mg if it is a solid)), 95% ethanol (2.0 mL), and 5 N aqueoussodium hydroxide (0.6 mL). Swirl to mix, and then add acetone (100 μL). Stir/swirl vigorously for30 minutes, until precipitation is complete. If no precipitate forms after 15 minutes, heat theErlenmeyer flask gently in on the sand bath in the hood for 15 minutes, and then allow it to coolto room temperature. Whether heated or not, cool your Erlenmeyer flask in an ice bath for 10minutes to ensure complete crystallization. Collect the product by vacuum filtration. (If you donot have any solid at this point, evaporate all solvent in the sand bath. Recrystallize if solidresidue is obtained; otherwise stop…
- 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?Would any other aldol condensation products form? Also, if the acid was replaced with sodium ethoxide what else would we need to change about the reaction conditions to ensure that the same product forms?Write structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol below. You do not have to consider stereochemistry. Draw the enolate nucleophile in its carbanion form. Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Separate multiple reactants using the + sign from the drop-down menu.
- Chemistry In a well-designed synthesis the Aldol reaction can produce only one product. However, if a chemist is not thoughtful while planning their experiments the Aldol reaction can produce MANY possible products. Explain two ways side products were avoided in the synthesis of dibenzylacetone. Hint: think steps in the procedure as well as the choice of starting materials.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)Hello, Part 2 of exp. (sodium borohydride reduction of Benzoin); not sure how to write out the mechanism. I've attached step 2 from a question already in the database that uses H+, PTSA & acetone. what I do understand is some how there should be a nuc attack, to allow for the binding of acetone and diol, but do not know how to make that happen in a drawn-out mechanism. Could someone write out this mechanism? Thank you
- In your investigations into the synthesis of condensation product B (aldol reaction), did temperature play any role in the outcome? Give a few words of explanation for why this might be. Aldehydes : Benzaldehyde, 2,2-Dimethyl-pentan-3-one Bases: KOH or LDA Solvents: Ethanol, Ether Reactions: Benzaldehyde + 2,2-Dimethyl-pentan-3-one + Ethanol + KOH or LDA Benzaldehyde 2,2-Dimethyl-pentan-3-one + Ether + KOH or LDAFor each pair, predict the stronger nucleophile in the SN2 reaction (using an alcohol asthe solvent). Explain your prediction.(a) (CH3CH2)3N or (CH3CH2)2NHA)There are two plausible enolates that can arise when LDA is used as the base for the ketone shown. In each statement circle what best describes the enolate? The enolate is formed under either a) irreversible or b) reversible conditions The favored is either the a) more stable or b) less stable enolate The favored enolate is either the a) kinetic or the b) thermodynamic enolate B) What is the major enolate? (structure)