1. For simple Aldol reactions we use a small amount of base to catalyze the reaction. Whatwould happen to the reaction if we used 1.1 eq of base in the reaction mixture? Illustrateyour answer with a reaction diagram. 2. For intramolecular Aldol reactions 5 and 6membered rings are formed readily whilst 3 and 4 memebered rings are now, explainusing illustrations

The objective of the first part of the question is to understand the effect of using more than one…

Answered: 1. For simple Aldol reactions we use a…

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter23: Carbonyl Condensation Reactions

Section23.SE: Something Extra

Problem 51AP

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The reaction of 2,7-octanedione with sodium hydroxide the reaction would be an example of Intramolecular Aldol Condensation Intermolecular Aldol Condensation Acid Catalyzed reaction Limiting reagent problem give both answer asap thanks O O a. NaCl b. NaOH c. LiAlH4 d. EtOH Intermolecular Aldol Condensation Intramolecular Aldol Condensation Robinsol Annulation Claisen Condensation
Он О Он о он о Он О H. H. II II IV V Which of the following molecules is not a possible product when a cross-linked aldol II reaction is carried out with ethanal and II butanal as reactants? IV V
) Cinnamaldehyde is used in artificial cinnamon flavoring. Show how cinnamaldehydeis synthesized by a crossed aldol condensation followed by dehydration.H CHcinnamaldehyde C COH(b) Adding acetophenone slowly to a cold solution of LDA produces the enolate of acetophenone; but adding LDA slowly to a cold solution of acetophenone produces acondensation product. Show the reactions happening in each case, and explain why weobserve such different results
a) Show the reaction mechanism for the following multistep transformations. Show all reagents and the intermediate structures. Br OH from and b) Propose a correct retrosynthetic analysis of (E)-1,3-di(furan-2-yl)prop-2-en-1-one following an aldol condensation reaction.
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What is the mechanism for this Aldol reaction?
The Stork reaction is a condensation reaction between an enamine donor and an a,ẞ-unsaturated carbonyl acceptor. The overall reaction consists of a three-step sequence of 1. formation of an enamine from a ketone. 2. Michael addition to an α,ß-unsaturated carbonyl compound, and 3. hydrolysis of the enamine in dilute acid to regenerate the ketone. Consider the Stork reaction between cyclohexanone and propenal. Draw the structure of the product of the enamine formed between cyclohexanone and dimethylamine. ચર્ચ F Correct HC, CH3 ChemDoodle 2 Draw the structure of the Michael addition product. ChemDoodle Jn (F 106 Correct
What is the product if this compound underwent aldol condesation with a base (NaOH), and how?
Draw the structures A, B and C for the reaction sequence below. Dehydration via an E1cb mechanism Michael Reaction Intramolecular Aldol Reaction A В КОН /ETOH / heat C КОН /ETOH КОН /ETOH
1. Discuss the role of the Aldol condensation reaction in the synthesis below. What specific reaction was used in the synthesis? What is the importance of the aldol reaction in the entire synthetic approach? 2. Show the detailed reaction mechanism involved in their corresponding specific parts in this syntheses.
2. When the following pair of reactants are combined in the presence of a basic catalyst, a number of aldol addition products are possible). NaOH/H₂O A CH3 a. b. C. H₂C Draw the structure for the enolate ion (show both of the relevant resonance structures). Draw the structures for all possible aldol addition products (also show the enolate ion and electrophilic carbonyl compound responsible for each product). For each of the aldol addition products predicted in part b, draw the structures for all of the corresponding aldol condensation products after loss of water (if E/Z isomers are possible, show both isomers)
D) 2) What two organic starting materials are required to produce cinnamaldehyde (PHCH=CHCHO) via a crossed aldol condensation followed by dehydration? A) PHCH3 and CH3CHO B) PHCHO and CH3CH2CHO C) PHCHO and CH3CH2OH D) PHCHO and CH3CHO uart "nolizable ketone to its enolate

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