Homework Answers
First of all synthesis of ethers is SN2 by Williamson's ether synthesis.
And best reagents are primary alkyl halides and alkoxide. Since order of sn2 :1°>2°>3°
Here he will get elimination product, 2-methylpropene
And to get the desired ether he has to take Ethyl chloride and tertiary butoxide.
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6. A student wanted to synthesize the anesthetic CH3 2-ethoxy-2-methylpropane. He used sodium ethoxide 2-chloro-2-methylpropane for...
3a) (5 pts) When 1,2-epoxypropane is treated with sodium ethoxide in ethanol, 1-ethoxy-2-propanol is the major...
3a) (5 pts) When 1,2-epoxypropane is treated with sodium ethoxide in ethanol, 1-ethoxy-2-propanol is the major product while only a trace amount of 2-ethoxy-1-propanol is produced. Propose a mechanism for the major product and explain the results based on the mechanism. OH NaOCH2CH3 OH EtOH trace major Hoc
in the solvolysis of 2-chloro-2-methylpropane, some di-t-butyo ether is formed. Explain rhis phenomenon in your own...
in
the solvolysis of 2-chloro-2-methylpropane, some di-t-butyo ether
is formed. Explain rhis phenomenon in your own words and show the
reaction sequence that represents this, starting with your starting
materials.
Complete and turn in the problems below. 1. Using an equation like equation 3, derive the expression for k given in equation 4. 2. What solvent mixture are you using in parts A-C? In part D? What effect will the different solvent system used in part D have on the...
A student wanted to synthesize 4-(5-methylhex-3-yn-1-yl)phenol. The student\'s key step was to be the SN2 reaction...
A student wanted to synthesize 4-(5-methylhex-3-yn-1-yl)phenol.
The student\'s key step was to be the SN2 reaction of an acetylide
with 4-(2-bromoethyl)phenol. However, the student isolated none of
the desired product. What went wrong? Draw the two products the
student isolated instead. Assume a 1:1 mixture of reagents.
A student wanted to synthesize 4-(5-methylhex-3-yn-1-yl)phenol. The student's key step was to be the SN2 reaction of an acetylide with 4-(2-bromoethyl)phenol. However, the student isolated none of the desired product. What went wrong?...
What would have been the best starting materials for the synthesis of R-2-ethoyxbutane? 3. A student...
What would have been the best starting materials for the
synthesis of R-2-ethoyxbutane?
3. A student wanted to make R-2-ethoxybutane, using the Williamson ether synthesis. He remembered that the Williamson synthesis involves an SN2 displacement, which takes place with inversion of configuration. He ordered a bottle of S-2-butanol for his chiral starting material. He also remembered that SN2 goes best on primary halides, so he made ethyl bromide and S-2-sodiumbutoxide. After warming these reagents together, he obtained an excellent yield...
1. Which Wittig reagent would be used to synthesize 2 CH-CH=P(CAH) CH=P(CHẠh. P(CH3)3 CH,CH,CH-P(CH3)3 IV 2....
1. Which Wittig reagent would be used to synthesize 2 CH-CH=P(CAH) CH=P(CHẠh. P(CH3)3 CH,CH,CH-P(CH3)3 IV 2. What is the correct IUPAC name for the following compound? 6 eye 3. What is the correct structure for 7-methyl-4-octanone? 3 4. The products, D and E, of the following reaction sequence, S "CN HCI HCN CH.NO H20 heat would be: CH2CH2CN CH,CH,MgBe HO E ? ether Show how you would synthesize the following compound, beginning with 1-butene, Bromobenzene and any necessary additional reagents....
A co₂Et 4. A Chem 241 student was given an experiment to synthesize compoun OH acetoacetate....
A
co₂Et 4. A Chem 241 student was given an experiment to synthesize compoun OH acetoacetate. The student prepared 1 mole equivalent of methylmagnesium lo which was then slowly added to a solution of ethyl acetoacetate in ether. Every 1 went well, Indeed, even without the annlication of heat the reaction mixture Dubbie orking carefully, with supervision and advice from the lab instructor, the student worked- up the reaction and isolate - LII Caction and isolated an excellent vield of...
We performed a synthesis of methyl diantilis lab. The first step involved a Sodium Borohydride Reduction...
We performed a synthesis of methyl diantilis lab. The first step
involved a Sodium Borohydride Reduction of
3-Ethoxy-4-hydroxybenzaldehyde (Ethylvanillin) shown below.
The next step of the experiment involved Etherification of
3-ethoxy-4-hydroxylbenzyl Alcohol using one of four alcohols
(methanol, ethanol, 1-propanol, or 2-propanol). The alcohol I used
was methanol. The reaction is predicted below.
Below is the NMR sample for my product with the integration and
ppm for each peak displayed.
Based on this information, answer the following questions.
a. Check...
1. What was the sodium sulfite used for the experiment below? 2. What material could still...
1. What was the sodium sulfite used for the experiment below? 2. What material could still be in the ether layer of the experiment below? To a 3.0 mL conical vial containing a spin vane and equipped with an air condenser, add 20 uL of acetophenone and 700 uL of household bleach ( NaOCl, 5% available). Dispense both reagents in the hood! Stir the mixture at room temperature for thirty minutes. Add approximately 5.0 mg of sodium sulfite and stir...
Vanillin reduction, please help!! I've asked twice before and no one has helped. "A careless student, Will Bobble, misread the label on a bottle of 10 M NaOH and used it (rather than 1 M NaOH)...
Vanillin reduction, please help!! I've asked twice before and no one has helped. "A careless student, Will Bobble, misread the label on a bottle of 10 M NaOH and used it (rather than 1 M NaOH) to dissolve his vanillin. Then he stored the solution and left the lab early to catch a ride home. During the next lab period, he added sodium borohydride and finished the experiment. Although his product was a white solid, it melted over a broad...
Just Answer Question 5 Synthesis of 2-chloro-2-methylbutane (literature version) Concentrated aqueous hydrochloric acid (HCI, 3.3 equivalents)...
Just Answer Question 5
Synthesis of 2-chloro-2-methylbutane (literature version) Concentrated aqueous hydrochloric acid (HCI, 3.3 equivalents) was slowly added to 2-methyl-2-butanol (1.0 equivalents) in a 100 mL round bottom flask with stirring. The reaction was stirred for 15 minutes at room temperature. Upon completion, the reaction mixture was transferred to a 60 mL separatory funnel and the aqueous layer was removed. The organic layer (i.e. the product) was successively washed with: (1) saturated aqueous NaCl (brine), (2) saturated aqueous NaHCO,...
3a) (5 pts) When 1,2-epoxypropane is treated with sodium ethoxide in ethanol, 1-ethoxy-2-propanol is the major product while only a trace amount of 2-ethoxy-1-propanol is produced. Propose a mechanism for the major product and explain the results based on the mechanism. OH NaOCH2CH3 OH EtOH trace major Hoc
in
the solvolysis of 2-chloro-2-methylpropane, some di-t-butyo ether
is formed. Explain rhis phenomenon in your own words and show the
reaction sequence that represents this, starting with your starting
materials.
Complete and turn in the problems below. 1. Using an equation like equation 3, derive the expression for k given in equation 4. 2. What solvent mixture are you using in parts A-C? In part D? What effect will the different solvent system used in part D have on the...
A student wanted to synthesize 4-(5-methylhex-3-yn-1-yl)phenol.
The student\'s key step was to be the SN2 reaction of an acetylide
with 4-(2-bromoethyl)phenol. However, the student isolated none of
the desired product. What went wrong? Draw the two products the
student isolated instead. Assume a 1:1 mixture of reagents.
A student wanted to synthesize 4-(5-methylhex-3-yn-1-yl)phenol. The student's key step was to be the SN2 reaction of an acetylide with 4-(2-bromoethyl)phenol. However, the student isolated none of the desired product. What went wrong?...
What would have been the best starting materials for the
synthesis of R-2-ethoyxbutane?
3. A student wanted to make R-2-ethoxybutane, using the Williamson ether synthesis. He remembered that the Williamson synthesis involves an SN2 displacement, which takes place with inversion of configuration. He ordered a bottle of S-2-butanol for his chiral starting material. He also remembered that SN2 goes best on primary halides, so he made ethyl bromide and S-2-sodiumbutoxide. After warming these reagents together, he obtained an excellent yield...
1. Which Wittig reagent would be used to synthesize 2 CH-CH=P(CAH) CH=P(CHẠh. P(CH3)3 CH,CH,CH-P(CH3)3 IV 2. What is the correct IUPAC name for the following compound? 6 eye 3. What is the correct structure for 7-methyl-4-octanone? 3 4. The products, D and E, of the following reaction sequence, S "CN HCI HCN CH.NO H20 heat would be: CH2CH2CN CH,CH,MgBe HO E ? ether Show how you would synthesize the following compound, beginning with 1-butene, Bromobenzene and any necessary additional reagents....
A
co₂Et 4. A Chem 241 student was given an experiment to synthesize compoun OH acetoacetate. The student prepared 1 mole equivalent of methylmagnesium lo which was then slowly added to a solution of ethyl acetoacetate in ether. Every 1 went well, Indeed, even without the annlication of heat the reaction mixture Dubbie orking carefully, with supervision and advice from the lab instructor, the student worked- up the reaction and isolate - LII Caction and isolated an excellent vield of...
We performed a synthesis of methyl diantilis lab. The first step
involved a Sodium Borohydride Reduction of
3-Ethoxy-4-hydroxybenzaldehyde (Ethylvanillin) shown below.
The next step of the experiment involved Etherification of
3-ethoxy-4-hydroxylbenzyl Alcohol using one of four alcohols
(methanol, ethanol, 1-propanol, or 2-propanol). The alcohol I used
was methanol. The reaction is predicted below.
Below is the NMR sample for my product with the integration and
ppm for each peak displayed.
Based on this information, answer the following questions.
a. Check...
Just Answer Question 5
Synthesis of 2-chloro-2-methylbutane (literature version) Concentrated aqueous hydrochloric acid (HCI, 3.3 equivalents) was slowly added to 2-methyl-2-butanol (1.0 equivalents) in a 100 mL round bottom flask with stirring. The reaction was stirred for 15 minutes at room temperature. Upon completion, the reaction mixture was transferred to a 60 mL separatory funnel and the aqueous layer was removed. The organic layer (i.e. the product) was successively washed with: (1) saturated aqueous NaCl (brine), (2) saturated aqueous NaHCO,...
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