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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...
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
10. Please Check 1 by 1 and read carefully. I would need a perfect score for...
10.
Please Check 1 by 1 and read carefully. I would need a perfect
score for this . Thanks
Select the keyword or phrase that will best complete each sentence A Claisen reaction is a nucleophilic substitution in which an enolate is the nucleophile Key terms: Robinson annulation Aldol condensation: An aldol reaction in which the initially formed p hydroxyl carbonyl compound loses water by dehydration. Claisen reaction Aldol condensation Dieckmann reaction: An intramolecular Claisen reaction of a diester to...
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...
The correct order of reaction reagents to go from starting material to the desired product is:...
The correct order of reaction reagents to go from starting material to the desired product is: Reagents for the first reaction: Reagents for the second reaction: Reagents for the third reaction : Reagents for the fourth reaction : Who но OH HOT PPh3 1. R-Li 2. H30+ Но он K₂Cr₂O7 H2SO4 H20 RH н* 5 1. LiAlH4 PPh3 PPh3 H3O+ H2SO4 Heat 2. H20 RR HH 10 11 12 1. NaCN ROH RR RONa ROH NaOH R-NH2 2. H2O* H+...
Draw the missing major organic product(s), starting material(s), or reagents for each of the following reactions...
Draw the missing major organic product(s), starting
material(s), or reagents for each of the following reactions (DO
NOT WRITE +EN AS A PRODUCT (ie draw everything out!)! And remember
stereo and regiochemistry.) Assume reagents are in excess unless
otherwise indicated. **To make things simple, I indicated what is
needed for each section! Please don't just put the answers, but
explanations as well on why. Thanks!
a) draw the starting material for this reaction.
b) draw the product for this reaction....
4. In the following reaction the aldol product C is difficult to isolate, and even without...
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 н NaOH Н Н.о н С 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH + Н.о H 6. Give the major organic product from each mixed aldol reaction. Then explain why the reaction conditions favor one product instead of generating a mixture of products. NaOH a. Но Н...
Draw a structural formula for the product of each crossed aldol reaction (catalyzed by NaOH) and...
Draw a structural formula for the product of each crossed aldol reaction (catalyzed by NaOH) and for the compounds formed by dehydration of each aldol product. 1. a) -H20 b) но -H2o d) -H2O
Draw a structural formula for the product of the aldol reaction of the compound shown above,...
Draw a structural formula for the product of the aldol reaction of the compound shown above, as well as the a.B-unsaturated aldehyde or ketone formed from dehydration of the aldol product. You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right comer. Separate structures using the sign from the drop-down menu. . o 1. Og 2. (CH3)2...
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20...
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20 2) NaBH (provide starting material) 2) Provide the major organic product(s) for the following reactions. If stereoisomers are formed, please show both stereoisomers. (0.5 pts each) 1) BH3 THF a) 2)120 NaOH 1) NaOH, H-O, 55°C b) 2) OsO4 t-BuOOH 1-BuOH, NaOH Br2 c) CCl4 H2O, H2SO d) H9SO4 2 equivalents HBr e) 3) The following ction generates an ether. Provide the major organic...
Give the major organic product of each reaction. 8. a. LDA н b. H c. mild...
Give the major organic product of each reaction. 8. a. LDA н b. H c. mild H NaOH, H,O н a, LDA b. f. н NaOH, H,O, heat c. mild H NaOH, H,O O NaOH, H,O H CYD a. LDA b. d. h. NaOH, H,O, heat c. mild H*, heat 9. Give the major organic product of each intramolecular Aldol reaction. NaOH, H,O a. heat H NaOH, H2O b. heat NaOH, H,O NaOH, H20 d. heat 10. Propose starting materials...
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
10.
Please Check 1 by 1 and read carefully. I would need a perfect
score for this . Thanks
Select the keyword or phrase that will best complete each sentence A Claisen reaction is a nucleophilic substitution in which an enolate is the nucleophile Key terms: Robinson annulation Aldol condensation: An aldol reaction in which the initially formed p hydroxyl carbonyl compound loses water by dehydration. Claisen reaction Aldol condensation Dieckmann reaction: An intramolecular Claisen reaction of a diester to...
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...
The correct order of reaction reagents to go from starting material to the desired product is: Reagents for the first reaction: Reagents for the second reaction: Reagents for the third reaction : Reagents for the fourth reaction : Who но OH HOT PPh3 1. R-Li 2. H30+ Но он K₂Cr₂O7 H2SO4 H20 RH н* 5 1. LiAlH4 PPh3 PPh3 H3O+ H2SO4 Heat 2. H20 RR HH 10 11 12 1. NaCN ROH RR RONa ROH NaOH R-NH2 2. H2O* H+...
Draw the missing major organic product(s), starting
material(s), or reagents for each of the following reactions (DO
NOT WRITE +EN AS A PRODUCT (ie draw everything out!)! And remember
stereo and regiochemistry.) Assume reagents are in excess unless
otherwise indicated. **To make things simple, I indicated what is
needed for each section! Please don't just put the answers, but
explanations as well on why. Thanks!
a) draw the starting material for this reaction.
b) draw the product for this reaction....
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 н NaOH Н Н.о н С 5. Draw all possible aldol products from this mixed aldol reaction (not dehydrated). NaOH + Н.о H 6. Give the major organic product from each mixed aldol reaction. Then explain why the reaction conditions favor one product instead of generating a mixture of products. NaOH a. Но Н...
Draw a structural formula for the product of each crossed aldol reaction (catalyzed by NaOH) and for the compounds formed by dehydration of each aldol product. 1. a) -H20 b) но -H2o d) -H2O
Draw a structural formula for the product of the aldol reaction of the compound shown above, as well as the a.B-unsaturated aldehyde or ketone formed from dehydration of the aldol product. You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. • Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right comer. Separate structures using the sign from the drop-down menu. . o 1. Og 2. (CH3)2...
1) Provide the starting material for the following reaction. (0.5 pts) Он Он 1) Hg(OAc)2, H20 2) NaBH (provide starting material) 2) Provide the major organic product(s) for the following reactions. If stereoisomers are formed, please show both stereoisomers. (0.5 pts each) 1) BH3 THF a) 2)120 NaOH 1) NaOH, H-O, 55°C b) 2) OsO4 t-BuOOH 1-BuOH, NaOH Br2 c) CCl4 H2O, H2SO d) H9SO4 2 equivalents HBr e) 3) The following ction generates an ether. Provide the major organic...
Give the major organic product of each reaction. 8. a. LDA н b. H c. mild H NaOH, H,O н a, LDA b. f. н NaOH, H,O, heat c. mild H NaOH, H,O O NaOH, H,O H CYD a. LDA b. d. h. NaOH, H,O, heat c. mild H*, heat 9. Give the major organic product of each intramolecular Aldol reaction. NaOH, H,O a. heat H NaOH, H2O b. heat NaOH, H,O NaOH, H20 d. heat 10. Propose starting materials...
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