Draw structures for the carbonyl electrophile and enolate nucleophile that react to give the aldol or enone below.(One of many steps in a synthesis of ẞ-carotene)• Consider E/Z stereochemistry of alkenes.• 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.

Step 1: Step 2: Explanation: Reaction of carbanion with aldehyde produces beta-hydroxy carbonyl…

Answered: Draw structures for the carbonyl…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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For each reaction, decide whether the reaction is a redox reaction, acid-base reaction, electrophile- nucleophile, or something else. One can begin to identify the type of reaction by looking to see if oxidation numbers of atoms that take part in the reaction change during the reaction. You will need to draw out the structures. a. If the reaction is considered an acid- base reaction, draw out the full mechanism for the reaction. Be sure to indicate which compound is the acid, base, and conjugate acid and base (where possible). b. If the reaction is considered a redox reaction, be sure to indicate which species are oxidized and which are reduced. c. For every reaction you will need to justify your identification of the type of reaction.
[Review Topics] [References] Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in a Grignard synthesis of the alcohol shown. • You do not have to consider stereochemistry. If there is more than one combination, draw only one. • 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. . CH3 CH3CHCH₂-OH + H... 9 ChemDoodle
This experiment is aldol condensation reaction. Complete the table
In a mixed aldol condensation with unknown aldehydes and ketones experiment, some aldol condensation reactions need to be heated for the dehydration step to occur. Explain why that was not necessary for the reactions carried out in this experiment? [Hint: what makes the product especially stable?]. This experiment used ethanol, acetic acid, sodium hydroxide, cyclohexanone and 4- methoxybenzaldehyde.
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Explain why a Lewis acid is necessary in this aldol reaction. Include a structure formed by the Lewis Acid and one of the reactants that is key to your discussion. R group is p-methoxyphenyl to make p-methoxybenzaldehyde (reactant). R' is phenyl.
This reaction is an example of conjugate addition of a nucleophile to an a,ẞ-unsaturated carbonyl. H3C LOCH3 H₂O H3C OCH3 OCH3 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. • O H CH3 ? [F
4) Vocabulary: words are given circle the correct one. a. A Robinson Annulation can occur with acetoacetate / malonic ester / both / neither Fill in the blanks with the appropriate vocabulary word. If two as the nucleophile, and with conjugated ester / conjugated ketone / epoxide / all/ none as the electrophile. The Robinson Annulation is a reaction followed by a reaction and always / sometimes / never gives a 6-member ring. b. It is always / sometimes / never possible to use base to form an acyl anion directly from an aldehyde. c. True / False.Aliphatic heterocycles typically react like linear versions of the functional group. d. Claisen condensations require catalytic / 1 equivalent / large excess base, at least 2 alpha hydrogens on the nucleophile, always / sometimes / never use an ester as an electrophile, and always / sometimes / never use an ester as a nucleophile. e. Reaction of a beta-ketoester with water, acid, and heat gives first a reaction, then and lastly This reaction…
Draw the structure(s) of the major product(s) of the following reaction after workup to neutralize acid. NH₂ excess Br • You do not have to consider stereochemistry. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. • Include the counterion when the product is a quaternary ammonium salt. Draw the counterion in its own sketcher. • Separate multiple products using the + sign from the drop-down menu. • If no reaction occurs, draw all starting materials.
1. Which of these will undergo a rearrangement during the reaction 2. For reaction D- is HBr the nucleophile or electrophile? 3. For each of the reactions : Complete the reaction, showing the mechanism by using b. Draw the intermediate – showing the carbocation and an Draw and write the name of the final product. To name a compound with a halide attach – treat the halide as a substitue showing it's placement. Bromine = bromo, Chlorine = chlare, etc.….. HCI b) d) HBr
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. ChemDoodle Submit Answer Retry Entire Group 7 more group attampts remalning
[Review Topics] [References] Acyl transfer (nucleophilic substitution at carbonyl) reactions proceed in two stages via a "tetrahedral intermediate." Draw the tetrahedral intermediate as it is first formed in the following reaction. H3C CH3 H2O NaOH • You do not have to consider stereochemistry. • Include all valence lone pairs in your answer. • Do not include counter-ions, e.g., Nat, I', in your answer. • In cases where there is more than one answer, just draw one. C opy aste C. Previous Next Email Instructor Save and Ex Cengage Learning | Cengage Technical Support 5:48 PI 82°F 3/28/20

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