24. (MCAT) What product results when the following aldol product is treated with dilute acid:? 110, a. b. C. d. 25. Which best represents a step in the mechanism for the Aldol condensation? a. b. d. 26. What is the product of this reaction?
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could you please help me with these questions. thank you so much 20. Which reagent would best serve as the basis for a simple chemical test to distinguish between 0 0 CH3CH2CC2C3 and CH3CH2CH2CC...
___ 13. Which reagent would best serve as the basis for a simple chemical test to...
___ 13. Which reagent would best serve as the basis for a simple chemical test to distinguish between CH3CHO and CH3COCH3? A) NaOI (I2 in NaOH) B) Br2/CCl4 C) C6H5NHNH2 D) NaHCO3/H2O E) Ag(NH3)2+
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...
Could you please help me with these questions. Thank you so much 6. Which of the...
Could you please help me with these questions. Thank you so much
6. Which of the following statements is NOT true of ethers? a. Ethers are generally unreactive molecules toward reagents other than strong acids. b. Ethers generally have lower boiling points than alcohols of a corresponding molecular weight. c. Ethers generally have much lower water solubilities than alcohols with a corresponding molecular weight. d. Ethers can generally be cleaved by heating them with strong acids e. Ethers form peroxides...
could someone help me with these? thank you Question 30 1.88 pts What is the best...
could someone help me with these? thank you
Question 30 1.88 pts What is the best choice of reagent(s) to perform the following transformation? OH OH a) H20; H2SO4 c) BH3; followed by H2O2; NaOH e) 03, followed by (CH3)2S b) HgSO4, followed by NaBH4 d) Os04; followed by NaHSO3 a) Ob) Oc) d) e) Question 31 1.88 pts In cis-oct-5-en-3-yne, the shortest carbon-carbon single bond is between carbons a) 1 and 2 b) 2 and 3 c) 4 and...
Please explain this, thank you! 22) Which of the following reaction sequences is the best synthesis...
Please explain this, thank you!
22) Which of the following reaction sequences is the best synthesis of 2,2-dimethylpropanoic acid, (CH),CCO,H? A) (CH3),CBr Mg CO2 dilute HCI ether хон Cha ch3 B) (CH3)3CCHOH Lilly dilute HC ether C) (CH3)2CBINH HOⓇ Br2 KCN dilute HCI D) (CH3)C-C-H
could you please help me with these questions. thank you so much 45. What is the...
could you please help me with these questions. thank you so much
45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> aldehydes > ketones c. Ketones > esters > aldehydes d. Aldehydes > ketones> esters 46. Which of these will not catalyze the reaction of a weak nucleophile with the carbonyl group of an aldehyde or ketone? (Hint: Look for which is not a Lewis Acid) A) I' B)...
Can you please help me with both of these question. 4. Which set of reagents would yield butanal, CH3CH;CH;CH=O from 1-b...
Can you please help me with both of these question.
4. Which set of reagents would yield butanal, CH3CH;CH;CH=O from 1-butyne CH CH2CECH? a. 1) Hg(OAc)2, H2O; 2) NABH b. 1)9-BBN; 2) NaOH, H2O2 CH.C CH c. HgSO4, H2O, H;SO d. acid-catalyzed hydration butyne, 5. Which set of reagents would lead to the transformation depicted below? Hso, HO, S0 d calyzed hyration I 2 teanito mation Br Br a. 1) t-BuOK/t-BuOH; 2) Bra/H2O b. 1) NaOMe/MeOH; 2) Br2/CCl c. 1)...
can you please help me with these questions? thank you :) 1. 2. 3. What would...
can you please help me with these questions? thank you
:)
1.
2.
3.
What would be the major product of the following reaction? CH +OH" CHECCH 00 ༡ ཁ་ཡངས་པ། ཕྱི་ ༠་པ། - ༠༨) ང་དང་ཆུང་ I II Cho -CH=CHOCH Ct ©=ductOA)z OH IV ། [༥ ། OBIV (C| | E,། E. V O What would be the major product of the following reaction? OH ? CH, CH.CH но O A. CH3CH2CH2OH + CH3CH2C00 OB. CH,CH2CH2OCCH.CH OC. CH3CH2CHCH2CH Hd OD. снуснаснснясно...
can you please help for these three questions please? thank you! 18. Which will be the...
can you please help for these three questions please? thank
you!
18. Which will be the major product of the following E2 reaction? NaOH Br CH3 H3C H a) b) c) Нас d) H3C CH3 H3 H3C 3 20. Which would not be a good method to prepare compound A? O A 1. BH3 OH РСС b) 2. H202, OH 1, H+, H2O 2. РСС H2SO4, H20 O 28. How many different protons (including the H of the OH) are...
please answer all thank you so much Question 1 Which of the following mechanistic steps represents...
please answer all thank you so much
Question 1 Which of the following mechanistic steps represents the loss of a leaving group? OH OH2 H Br II 18-05-4 IV AI B. II C. D.IV Question 3 What is product of the following reaction sequence? ОН 1. PCC 2. C2H5MgBr 3. Н* wоrkup ОН ОН ОН IV ОА І В. І С. ІІІ OD. IV Question 4 What is the major product formed in the following reaction? Br NaH A NH2...
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...
Could you please help me with these questions. Thank you so much
6. Which of the following statements is NOT true of ethers? a. Ethers are generally unreactive molecules toward reagents other than strong acids. b. Ethers generally have lower boiling points than alcohols of a corresponding molecular weight. c. Ethers generally have much lower water solubilities than alcohols with a corresponding molecular weight. d. Ethers can generally be cleaved by heating them with strong acids e. Ethers form peroxides...
could someone help me with these? thank you
Question 30 1.88 pts What is the best choice of reagent(s) to perform the following transformation? OH OH a) H20; H2SO4 c) BH3; followed by H2O2; NaOH e) 03, followed by (CH3)2S b) HgSO4, followed by NaBH4 d) Os04; followed by NaHSO3 a) Ob) Oc) d) e) Question 31 1.88 pts In cis-oct-5-en-3-yne, the shortest carbon-carbon single bond is between carbons a) 1 and 2 b) 2 and 3 c) 4 and...
Please explain this, thank you!
22) Which of the following reaction sequences is the best synthesis of 2,2-dimethylpropanoic acid, (CH),CCO,H? A) (CH3),CBr Mg CO2 dilute HCI ether хон Cha ch3 B) (CH3)3CCHOH Lilly dilute HC ether C) (CH3)2CBINH HOⓇ Br2 KCN dilute HCI D) (CH3)C-C-H
could you please help me with these questions. thank you so much
45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> aldehydes > ketones c. Ketones > esters > aldehydes d. Aldehydes > ketones> esters 46. Which of these will not catalyze the reaction of a weak nucleophile with the carbonyl group of an aldehyde or ketone? (Hint: Look for which is not a Lewis Acid) A) I' B)...
Can you please help me with both of these question.
4. Which set of reagents would yield butanal, CH3CH;CH;CH=O from 1-butyne CH CH2CECH? a. 1) Hg(OAc)2, H2O; 2) NABH b. 1)9-BBN; 2) NaOH, H2O2 CH.C CH c. HgSO4, H2O, H;SO d. acid-catalyzed hydration butyne, 5. Which set of reagents would lead to the transformation depicted below? Hso, HO, S0 d calyzed hyration I 2 teanito mation Br Br a. 1) t-BuOK/t-BuOH; 2) Bra/H2O b. 1) NaOMe/MeOH; 2) Br2/CCl c. 1)...
can you please help me with these questions? thank you
:)
1.
2.
3.
What would be the major product of the following reaction? CH +OH" CHECCH 00 ༡ ཁ་ཡངས་པ། ཕྱི་ ༠་པ། - ༠༨) ང་དང་ཆུང་ I II Cho -CH=CHOCH Ct ©=ductOA)z OH IV ། [༥ ། OBIV (C| | E,། E. V O What would be the major product of the following reaction? OH ? CH, CH.CH но O A. CH3CH2CH2OH + CH3CH2C00 OB. CH,CH2CH2OCCH.CH OC. CH3CH2CHCH2CH Hd OD. снуснаснснясно...
can you please help for these three questions please? thank
you!
18. Which will be the major product of the following E2 reaction? NaOH Br CH3 H3C H a) b) c) Нас d) H3C CH3 H3 H3C 3 20. Which would not be a good method to prepare compound A? O A 1. BH3 OH РСС b) 2. H202, OH 1, H+, H2O 2. РСС H2SO4, H20 O 28. How many different protons (including the H of the OH) are...
please answer all thank you so much
Question 1 Which of the following mechanistic steps represents the loss of a leaving group? OH OH2 H Br II 18-05-4 IV AI B. II C. D.IV Question 3 What is product of the following reaction sequence? ОН 1. PCC 2. C2H5MgBr 3. Н* wоrkup ОН ОН ОН IV ОА І В. І С. ІІІ OD. IV Question 4 What is the major product formed in the following reaction? Br NaH A NH2...
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