In order to synthesize 5-methyl-2-hexanone via acetoacetic ester synthesis, which of the following compounds should be...
In order to synthesize 5-methyl-2-hexanone via acetoacetic ester synthesis, which of the following compounds should be reacted with the enolate ion generated by the reaction of ethylacetoacetate with sodium ethoxide?
A) 2-methylpropanal
B) isobutyl bromide
C) 1-bromo-3-methylbutane
D) 2-methyl-1-propanol
E) none of the above
Correct answer is B. Please explain why
Homework Answers
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In order to synthesize 5-methyl-2-hexanone via acetoacetic ester
synthesis, which of the following compounds should be...
A chemist wanted to synthesize the following compound using the acetoacetic acid ester synthesis. Two alkyl...
A chemist wanted to synthesize the following compound using the acetoacetic acid ester synthesis. Two alkyl bromides will be needed for the reaction. Draw the structure of the two required alkyl bromides. Don't draw anything else, just the two alkyl bromides. Насло مکم CH2 alkyl bromide 1 alkyl bromide 2
12. In a synthesis of isopropyl pyridine, the 3-methyl-2- presence of sodium ethoxide to give a...
12. In a synthesis of isopropyl pyridine, the 3-methyl-2- presence of sodium ethoxide to give a dicarbonyl compo NaOCH.CH opropyl pyridine, the 3 with ethyl formate in the 0 ethyl formate 3-methyl-2-butanone a) In the first step of the mechanism, sodiu alpha position to form an enolate. Complete the as necessary (4 points) step of the mechanism, sodium ethoxide deprotonates 3-methyl-2-buthone at the O form an enolate, Complete this reaction with curly arrows drawing in H atoms b) Why is...
Lumili alle for the following compound? - (CH)CHCH.COCH,CH, a. 2-methyl-4-hexanone c. 2-methyl-3-hexanone b. 5-methyl-3-hexanone d. ethyl...
Lumili alle for the following compound? - (CH)CHCH.COCH,CH, a. 2-methyl-4-hexanone c. 2-methyl-3-hexanone b. 5-methyl-3-hexanone d. ethyl isopropyl ketonel. 25-Identify the directing effect of the ring substituent in the following reaction: BO, HBO. (a) o.p., activating (b) m-, deactivating (c) o.p., deactivating (d) None of these 26--Ketones are easily reduced to CH3-C-CH3 a-Secondary alcohol b- Primary alcohol c- to acetaldehyde d- to carboxylic acid 27-. What is the structure of the azo group? a-N- b-N-N- C-NEN- d-NEN- 28-What class of organic...
11) (24 pts total) (A) Consider the following compounds: 4-heptanone 3-hexanone 2-hexanone cyclohexanone methyl acetate...
11) (24 pts total) (A) Consider the following compounds: 4-heptanone 3-hexanone 2-hexanone cyclohexanone methyl acetate (a) (4 pts) Circle the compound that could be subjected to a haloform reaction (b) (12 pts) Provide the structure of the product obtained when the compound chosen in (a) undergoes the iodoform reaction; include the correct steochiometry for all the reagents used in the reaction. (B) (8 pts) Provide the strctures of compounds A and B obtained in the reaction sshown below.
EXPERIMENT 20 CSI: SMU Part 2. Synthesis of an Ester. Esters are compounds of the form...
EXPERIMENT 20 CSI: SMU Part 2. Synthesis of an Ester. Esters are compounds of the form RCOOR'. They occur naturally in many plants and animals, and can be synthesized. They have a pleasant aroma usually described as "fruity of flowery". In a Fisher esterification an ester is formed from the reaction of a carboxylic acid and an alcohol with a strong acid as a catalyst. The OH contained in the carboxylic acid group 1s replaced with the alkoxy group (O-R")...
Starting from acetoacetic ester, list in order (by letter, no period), the given reagents require...
Starting from acetoacetic ester, list in order
(by letter, no period), the given reagents required to synthesize
each of the following.
Note: not all steps may be necessary. If a step is not needed, type
'na'.
HO MeOH, H2SO4 (1)ONa (2) Mel OH (2) Br НА OEt (1) LDA (2) CH3l (1) Mg (2) H3o (1) HO, H2O, heat (2) H3ot (2) Mel (1)︿ONa (1) NaH heat (2) CcH5、 .cl NaBH4 CO2 ()ONa (1 ) LiAlH4 (2) H3Ot 1ONa PBr3...
Question 6 (1 point) Which of the following can be prepared by acetoacetic ester synthesis? CO,...
Question 6 (1 point) Which of the following can be prepared by acetoacetic ester synthesis? CO, 1 Question 7 (1 point) What is the order of acid strength from strongest to weakest acid? floath the oth OA) 2>1>4>3 OB) 1>2>3>4 C) 3>4>1>2 D) 2>4>1>3 O R H V B N Question 8 (1 point) What is the IUPAC name for this compound? COH CH,CH,CHCH,CH.CH O2-Ethyl-2-propyl-acetic acid 3-Hexylcarboxylic acid 2 Ethylpentanoic acid 2-Propylbutanoic acid Question 9 (1 point) 16 O 7...
1. Write a structural formula for each of the following compounds: (36 pts) (a) m-chlorobenzoyl chloride...
1. Write a structural formula for each of the following compounds: (36 pts) (a) m-chlorobenzoyl chloride (b) N-ethyl benzamide (c) dibenzalacetone (d) ethyl acetoacetate (e) 2-ethyl-1-butanamine (t) dibenzylamine 2. Write a structural formula for the principal organic product or products of each of the following reactions: (36 pts) (a) propanoyl chloride and sodium propanoate (b) acetic anhydride and 3-pentanol (c) acetaldehyde and sodium ethoxide (CH3CH2ONa) in ethanol solvent (d) cyclohexanone, benzaldehyde, and NaOH (e) 2-aminopropane and acetyl chloride in pyridine...
1.The main product of the reaction between p-cresol and Br2 / FeBr3 is: 3-Bromo-4-methyl phenol 2-Bromo-4-methyl...
1.The main product of the reaction between p-cresol and Br2 / FeBr3 is: 3-Bromo-4-methyl phenol 2-Bromo-4-methyl phenol 2-methyl-4-bromine phenol 3-methyl-4-bromine phenol 2.Which of the following compounds is the least reactive in the nucleophilic substitution with NaOH? 2,4-dinitrochlorobenzene m-nitrochlorobenzene o-nitrochlorobenzene 3,5-dinitrochlorobenzene 3.What is the mechanism (s) for the reaction of 4-bromo-1-nitrobenzene with sodium hydroxide to form 4-nitrophenol? bimolecular nucleophilic substitution (Sn2) aromatic nucleophilic substitution by addition-elimination aromatic nucleophilic substitution by elimination-addition aromatic electrophilic substitution 4.which of the following is the correct...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E)...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...
A chemist wanted to synthesize the following compound using the acetoacetic acid ester synthesis. Two alkyl bromides will be needed for the reaction. Draw the structure of the two required alkyl bromides. Don't draw anything else, just the two alkyl bromides. Насло مکم CH2 alkyl bromide 1 alkyl bromide 2
12. In a synthesis of isopropyl pyridine, the 3-methyl-2- presence of sodium ethoxide to give a dicarbonyl compo NaOCH.CH opropyl pyridine, the 3 with ethyl formate in the 0 ethyl formate 3-methyl-2-butanone a) In the first step of the mechanism, sodiu alpha position to form an enolate. Complete the as necessary (4 points) step of the mechanism, sodium ethoxide deprotonates 3-methyl-2-buthone at the O form an enolate, Complete this reaction with curly arrows drawing in H atoms b) Why is...
Lumili alle for the following compound? - (CH)CHCH.COCH,CH, a. 2-methyl-4-hexanone c. 2-methyl-3-hexanone b. 5-methyl-3-hexanone d. ethyl isopropyl ketonel. 25-Identify the directing effect of the ring substituent in the following reaction: BO, HBO. (a) o.p., activating (b) m-, deactivating (c) o.p., deactivating (d) None of these 26--Ketones are easily reduced to CH3-C-CH3 a-Secondary alcohol b- Primary alcohol c- to acetaldehyde d- to carboxylic acid 27-. What is the structure of the azo group? a-N- b-N-N- C-NEN- d-NEN- 28-What class of organic...
11) (24 pts total) (A) Consider the following compounds: 4-heptanone 3-hexanone 2-hexanone cyclohexanone methyl acetate (a) (4 pts) Circle the compound that could be subjected to a haloform reaction (b) (12 pts) Provide the structure of the product obtained when the compound chosen in (a) undergoes the iodoform reaction; include the correct steochiometry for all the reagents used in the reaction. (B) (8 pts) Provide the strctures of compounds A and B obtained in the reaction sshown below.
EXPERIMENT 20 CSI: SMU Part 2. Synthesis of an Ester. Esters are compounds of the form RCOOR'. They occur naturally in many plants and animals, and can be synthesized. They have a pleasant aroma usually described as "fruity of flowery". In a Fisher esterification an ester is formed from the reaction of a carboxylic acid and an alcohol with a strong acid as a catalyst. The OH contained in the carboxylic acid group 1s replaced with the alkoxy group (O-R")...
Starting from acetoacetic ester, list in order
(by letter, no period), the given reagents required to synthesize
each of the following.
Note: not all steps may be necessary. If a step is not needed, type
'na'.
HO MeOH, H2SO4 (1)ONa (2) Mel OH (2) Br НА OEt (1) LDA (2) CH3l (1) Mg (2) H3o (1) HO, H2O, heat (2) H3ot (2) Mel (1)︿ONa (1) NaH heat (2) CcH5、 .cl NaBH4 CO2 ()ONa (1 ) LiAlH4 (2) H3Ot 1ONa PBr3...
Question 6 (1 point) Which of the following can be prepared by acetoacetic ester synthesis? CO, 1 Question 7 (1 point) What is the order of acid strength from strongest to weakest acid? floath the oth OA) 2>1>4>3 OB) 1>2>3>4 C) 3>4>1>2 D) 2>4>1>3 O R H V B N Question 8 (1 point) What is the IUPAC name for this compound? COH CH,CH,CHCH,CH.CH O2-Ethyl-2-propyl-acetic acid 3-Hexylcarboxylic acid 2 Ethylpentanoic acid 2-Propylbutanoic acid Question 9 (1 point) 16 O 7...
1. Write a structural formula for each of the following compounds: (36 pts) (a) m-chlorobenzoyl chloride (b) N-ethyl benzamide (c) dibenzalacetone (d) ethyl acetoacetate (e) 2-ethyl-1-butanamine (t) dibenzylamine 2. Write a structural formula for the principal organic product or products of each of the following reactions: (36 pts) (a) propanoyl chloride and sodium propanoate (b) acetic anhydride and 3-pentanol (c) acetaldehyde and sodium ethoxide (CH3CH2ONa) in ethanol solvent (d) cyclohexanone, benzaldehyde, and NaOH (e) 2-aminopropane and acetyl chloride in pyridine...
26) Name the following compound. CH3 H2C=CH-CH2CHCH: A) 1,1-dimethyl-3-butane B) 4-methyl-1-pentene C) hexene D) 2-methyl-4-pentene E) 2-methylpentene 27) Name the following compound. CI A) 2,3,5-trichlorobenzene B) trichlorostyrene C) 1,3,4-trichlorobenzene D) 1,3,4-trichlorohexene E) 1,2,4-trichlorobenzene 28) Identify the formula for an alkene. A) CnH2n+4 B) CnH2n+2 C) CnH2n D) CnH2n-4 E) CnH2n-2 29) Name the following compound. A) 1,4-bromocyclohexene B) 1,4-dibromobenzene C) 3,6-dibromobenzene D) 2,5-dibromobenzene E) 2,5-dibromocyclohexene 30) Name the following compound. CECH CH,CH,CHCH A) 2-ethynebutane B) 3-methyl-1-pentyne C) 3-methyl-4-pentyne D) 3-ethyl-1-butyne...
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