Homework Answers
This is a self aldol reaction and the product is shown below
Option A is the answer
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23.1 Predict the aldol reaction product. The new C-C bond is formed between the a-carbon of...
23.4 What are the precursors for the mixed aldol product? 23.1 Predict the aldol reaction product....
23.4 What are the precursors for the mixed aldol product? 23.1 Predict the aldol reaction product. The new C-C bond is formed between the a-carbon of one molecule and carbonyl of the other. 23.6 Give the product of the Claisen reaction shown below. اعمال 1. NaOEt OEt 2. H20+ connectivity = C-carbon of one to carbonyl of the other (with loss of the leaving group). 23.7 Identify the Claisen precursor. NaOEt OEt ale new bond was formed between a-carbon of...
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using...
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) он Но, но Н,0 НО. ОН НО. он H, H НО. НО.
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using...
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) MeO- MeOH ale nie ma lonky Eto- Et0 EtOH MeO- MeOH Eto- EtOH MeO- walay Meo OMe bose MeOH
5) Why is the Aldol reaction often called an Aldol condensation? A) The initially formed b-hydroxy...
5) Why is the Aldol reaction often called an Aldol condensation? A) The initially formed b-hydroxy carbonyl compound loses water B) The initially formed b-hydroxy carbonvl compound loses an oxygen atom. C) The initially formed b-hydroxy carbonyl compound loses a hydrogen atom D) The initially formed b-hydroxy carbonyl compound loses a hydroxyl group. 6) When is a crossed Aldol reaction said to be synthetically useful? A) When both carbonyl compounds have a hydrogens B) When one carbonyl compound has no...
Which of the following statements about the Aldol reaction is correct. Select all that apply. The...
Which of the following statements about the Aldol reaction is correct. Select all that apply. The aldol condensation reaction requires only a catalytic amount of base to form the a, -unsaturated carbonyl product In an Aldol reaction, the enolate is the electrophile that reacts with a neutral carbonyl nucleophile. Reacting 1 equivalent of LDA (lithium diisopropylamide) with 3-pentanone, the enolate will be formed quantitatively. Two equivalents of a ketone can be reacted with NaOH to form a B-hydroxycarbonyl product. Aldol...
Predict (i.e. draw and label) the major aldol product that would be formed if D-proline was...
Predict (i.e. draw and label) the major aldol product that would be formed if D-proline was used as a catalyst instead of L-proline Reaction: Isobutyraldehyde + acetone ------(L-proline)----> (R)-aldol product + (S)-aldol product
3. Give the major organic aldol product for each reaction, along with the dehydration product (if...
3. Give the major organic aldol product for each reaction, along with the dehydration product (if possible) formed after heating. NaOH HO NaOH HO NaOH heat H2O 4. In the following reaction the aldol product C is difficult to isolate, and even without heating the dehydration product D is formed instead. Explain. ОН Ін 10-4 NaOH HO 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH HO
Experimental Outline In its simplest form, the aldol condensation is a self-addition involving tw...
Organic Chemistry 2
Experimental Outline In its simplest form, the aldol condensation is a self-addition involving two molecules of the same aldehyde or ketone, in the presence of a base, and results in the formation of a new carbon-carbon bond joining the carbonyl carbon of one molecule to the a-position of the second. In many cases - if the reaction conditions aren't sufficiently mild - the initially formed aldol product reacts further in an elimination reaction to give what is...
Product was formed successfully based on the exp. below (about 85% yield), please interpret/discuss HNMR/IR in...
Product was formed successfully based on the exp. below (about
85% yield), please interpret/discuss HNMR/IR in as much detail as
possible and assign peaks on HNMR (which peak represents which
protons of which group, etc). Note: I already know how you
determine the formation of the product so you can skip that part of
part b).
Based on this exp:
Discuss the IR spectrum and what is the peak in IR that you can see for a specific functional group...
Grignard reagents are used to make C-C new bonds. Their reaction with carbonyl compound leads to...
Grignard reagents are used to make C-C new bonds. Their reaction with carbonyl compound leads to alcohols. However, when reacted with carboxylic acids carbonyl compounds are formed. Predict what should be the product of the reaction between 4-nitrobenzoic acid and phenyl magnesium bromide and explain in few chosen words why a carbonyl compound instead of an alcohol.
23.4 What are the precursors for the mixed aldol product? 23.1 Predict the aldol reaction product. The new C-C bond is formed between the a-carbon of one molecule and carbonyl of the other. 23.6 Give the product of the Claisen reaction shown below. اعمال 1. NaOEt OEt 2. H20+ connectivity = C-carbon of one to carbonyl of the other (with loss of the leaving group). 23.7 Identify the Claisen precursor. NaOEt OEt ale new bond was formed between a-carbon of...
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) он Но, но Н,0 НО. ОН НО. он H, H НО. НО.
1. Draw the aldol product formed from an aldol/Claisen reaction with the given starting material(s) using OH or RO in H20 or ROH. (Hint: the product of an aldol reaction is a B-hydroxy carbonyl compound or an a,b- unsaturated carbonyl compound. The a,ß-unsaturated carbonyl will be the major product unless elimination of H2O cannot form the conjugated system.) MeO- MeOH ale nie ma lonky Eto- Et0 EtOH MeO- MeOH Eto- EtOH MeO- walay Meo OMe bose MeOH
5) Why is the Aldol reaction often called an Aldol condensation? A) The initially formed b-hydroxy carbonyl compound loses water B) The initially formed b-hydroxy carbonvl compound loses an oxygen atom. C) The initially formed b-hydroxy carbonyl compound loses a hydrogen atom D) The initially formed b-hydroxy carbonyl compound loses a hydroxyl group. 6) When is a crossed Aldol reaction said to be synthetically useful? A) When both carbonyl compounds have a hydrogens B) When one carbonyl compound has no...
Which of the following statements about the Aldol reaction is correct. Select all that apply. The aldol condensation reaction requires only a catalytic amount of base to form the a, -unsaturated carbonyl product In an Aldol reaction, the enolate is the electrophile that reacts with a neutral carbonyl nucleophile. Reacting 1 equivalent of LDA (lithium diisopropylamide) with 3-pentanone, the enolate will be formed quantitatively. Two equivalents of a ketone can be reacted with NaOH to form a B-hydroxycarbonyl product. Aldol...
3. Give the major organic aldol product for each reaction, along with the dehydration product (if possible) formed after heating. NaOH HO NaOH HO NaOH heat H2O 4. In the following reaction the aldol product C is difficult to isolate, and even without heating the dehydration product D is formed instead. Explain. ОН Ін 10-4 NaOH HO 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH HO
Organic Chemistry 2
Experimental Outline In its simplest form, the aldol condensation is a self-addition involving two molecules of the same aldehyde or ketone, in the presence of a base, and results in the formation of a new carbon-carbon bond joining the carbonyl carbon of one molecule to the a-position of the second. In many cases - if the reaction conditions aren't sufficiently mild - the initially formed aldol product reacts further in an elimination reaction to give what is...
Product was formed successfully based on the exp. below (about
85% yield), please interpret/discuss HNMR/IR in as much detail as
possible and assign peaks on HNMR (which peak represents which
protons of which group, etc). Note: I already know how you
determine the formation of the product so you can skip that part of
part b).
Based on this exp:
Discuss the IR spectrum and what is the peak in IR that you can see for a specific functional group...
Grignard reagents are used to make C-C new bonds. Their reaction with carbonyl compound leads to alcohols. However, when reacted with carboxylic acids carbonyl compounds are formed. Predict what should be the product of the reaction between 4-nitrobenzoic acid and phenyl magnesium bromide and explain in few chosen words why a carbonyl compound instead of an alcohol.
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