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1S. Explain in detail, why the benzene ring in 1,4-dimethoxy benzene is said to be 19....
QUESTIONS 1. What is the purpose of the sulfuric acid (yes, it's a catalyst, but why...
QUESTIONS 1. What is the purpose of the sulfuric acid (yes, it's a catalyst, but why is it a catalyst? What is it doing that makes the reaction possible? Would the reaction just go slower without it, or would the reaction not go at all? Why?) 2. If isobutyl alcohol (2 methyl propanol) is used instead of tert butyl alcohol, a mixture of products is obtained. One the products is the same as the product obtained with the tert butyl...
1. In both the sodium iodide test and the silver nitrate test, why does 2-bromobutane react faster...
1. In both the sodium iodide
test and the silver nitrate test, why does 2-bromobutane react
faster than 2-chlorobutane?
Bromine is a better leaving group since it is a weaker base than
chlorine is.
2. a. Why does benzyl chloride react under both
SN1 and SN2 conditions?
Benzyl
chloride is a primary alkyl halide, hence reactive under SN2
conditions.
The
primary carbocation formed due to the departure of Cl- is
stabilized by the pi electrons in the benzene ring.
b. Why is...
These problems relate back to the first step mechanism showed. It is a multi step question so you...
These problems relate back to the first step mechanism showed.
It is a multi step question so your answer will be appreciated
ssignment-2 for Chem C342 (Hon) Total points: 50 points Assignment due: Monday, April 19, 2019 (No Excuse 1. Meclizine is an antiemetic. It he Ips p revent or at least lessen the vomiting associated with Meclizine can be synthesized by the following motion sickness, including seasickness. series of reactions: 20 pts Cl он CI CI Cl CH3 Meclizine...
2. Was benzene present as a side product in the GC? If so, try to identify...
2. Was benzene present as a side product in the GC? If so, try to identify it (there is likely no standard for comparison in our lab facility because of benzene's toxicity). 3. What steps were taken to keep the system water free? Name each precaution taken. 139 4. Illustrate the mechanism for the desired reactions pas electrons. 5. How does your IR compare with the standard library match? 6. Why is THF a better solvent than diethyl ether for...
1 - Discuss correctly why each substituent favors the observed major product. (e.g. stability of the...
1 - Discuss correctly why each substituent favors the
observed major product. (e.g. stability of the carbocation
intermediate resonance hybrid, steric hindrance at reaction
location) How does the stability of the intermediates (from the
handout done during the lab) rationalize the observed products
formed? Do more stable intermediate lead to more products or
less
2- Create a general rule that correctly correlates
EDG/EWG behavior of a substituent and the preferred regiochemistry
of the reaction. Where do EDGs tend to substitute?...
Chern 204-PSI, 6 . Friedel Crafts Acylation of an Unknown Benzene Compound (One weck lab The...
Chern 204-PSI, 6 . Friedel Crafts Acylation of an Unknown Benzene Compound (One weck lab The Intent of this Lab To acetylate an unknown benzene compound via a Friedel-Crafts acylation and use spectroscopic techniques to determine the acetophenone derivative's identity Introduction The Friedel-Crafts reaction dates back to before 1900 and it is still widely used today. The active electrophilic agent (an acylium ion) is classically prepared and reacts very quickly. Another appealing feature of this reaction is that the acylated...
Lab : Aldol Condensation Purpose. In this lab you will conduct the Aldol condensation reaction under solid-state...
Lab : Aldol Condensation Purpose. In this lab you will conduct the Aldol condensation reaction under solid-state reaction conditions that will involve grinding reactants in the solid phase. You must read ahead and learn about this reaction and the chemical mechanism for the Aldol condensation. There are two possible products which are the initial Aldol or subsequent elimination product. You will need to isolate and purify your reaction product. You will use your melting point, IR, 1H and 13C NMR spectra to...
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepa...
i need help with the prelab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
Experiment Questions What is an epoxide and how is it useful with respect to synthesis design?...
Experiment Questions What is an epoxide and how is it useful with respect to synthesis design? • What are typical reagents used for epoxidation? • What is the mechanism for epoxidation? Must stereospecificity be considered? Experiment Techniques • Use of sodium bisulfite wash to remove excess peroxy acid from reaction mixture. Introduction By now you are well aware that the product of previous experiment (reaction of cyclohexanol and acid) is an alkene. You should also be storing key reactions of...
need help with the boxed bullet point. writing the chemical reaction scheme for the experiment. Synthesis of an A...
need help with the boxed bullet point. writing the chemical
reaction scheme for the experiment.
Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part I Pre-lab Assignment for Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part 1 1. From The Organic Chem Lab Survival Manual ( edition) by Zubrick • Review pages 201-204: Standard Reflux. • Review pages 127-140: Extraction • Review pages 164-189: Distillation, Simple Distillation. The Distillation Example, and The Distillation Mistake. 2. Read this...
QUESTIONS 1. What is the purpose of the sulfuric acid (yes, it's a catalyst, but why is it a catalyst? What is it doing that makes the reaction possible? Would the reaction just go slower without it, or would the reaction not go at all? Why?) 2. If isobutyl alcohol (2 methyl propanol) is used instead of tert butyl alcohol, a mixture of products is obtained. One the products is the same as the product obtained with the tert butyl...
1. In both the sodium iodide
test and the silver nitrate test, why does 2-bromobutane react
faster than 2-chlorobutane?
Bromine is a better leaving group since it is a weaker base than
chlorine is.
2. a. Why does benzyl chloride react under both
SN1 and SN2 conditions?
Benzyl
chloride is a primary alkyl halide, hence reactive under SN2
conditions.
The
primary carbocation formed due to the departure of Cl- is
stabilized by the pi electrons in the benzene ring.
b. Why is...
These problems relate back to the first step mechanism showed.
It is a multi step question so your answer will be appreciated
ssignment-2 for Chem C342 (Hon) Total points: 50 points Assignment due: Monday, April 19, 2019 (No Excuse 1. Meclizine is an antiemetic. It he Ips p revent or at least lessen the vomiting associated with Meclizine can be synthesized by the following motion sickness, including seasickness. series of reactions: 20 pts Cl он CI CI Cl CH3 Meclizine...
2. Was benzene present as a side product in the GC? If so, try to identify it (there is likely no standard for comparison in our lab facility because of benzene's toxicity). 3. What steps were taken to keep the system water free? Name each precaution taken. 139 4. Illustrate the mechanism for the desired reactions pas electrons. 5. How does your IR compare with the standard library match? 6. Why is THF a better solvent than diethyl ether for...
1 - Discuss correctly why each substituent favors the
observed major product. (e.g. stability of the carbocation
intermediate resonance hybrid, steric hindrance at reaction
location) How does the stability of the intermediates (from the
handout done during the lab) rationalize the observed products
formed? Do more stable intermediate lead to more products or
less
2- Create a general rule that correctly correlates
EDG/EWG behavior of a substituent and the preferred regiochemistry
of the reaction. Where do EDGs tend to substitute?...
Chern 204-PSI, 6 . Friedel Crafts Acylation of an Unknown Benzene Compound (One weck lab The Intent of this Lab To acetylate an unknown benzene compound via a Friedel-Crafts acylation and use spectroscopic techniques to determine the acetophenone derivative's identity Introduction The Friedel-Crafts reaction dates back to before 1900 and it is still widely used today. The active electrophilic agent (an acylium ion) is classically prepared and reacts very quickly. Another appealing feature of this reaction is that the acylated...
i need help with the prelab questions please
Grignard reagent THE GRIGNARD REAGENT-PREPARATION AND REACTION In this experiment, you will prepare a Grignard reagent, phenyl magnesium bromide, from bromobenzene and magnesium metal. The Grignard reagent will then react with methyl benzoate to form triphenylmethanol. Introduction Grignard reagents, such as organomagnesium halides, were discovered in 1910 by French chemist Victor Grignard. The Grignard reaction is one of the most general methods for carbon- carbon bond formation in all of organic chemistry....
Experiment Questions What is an epoxide and how is it useful with respect to synthesis design? • What are typical reagents used for epoxidation? • What is the mechanism for epoxidation? Must stereospecificity be considered? Experiment Techniques • Use of sodium bisulfite wash to remove excess peroxy acid from reaction mixture. Introduction By now you are well aware that the product of previous experiment (reaction of cyclohexanol and acid) is an alkene. You should also be storing key reactions of...
need help with the boxed bullet point. writing the chemical
reaction scheme for the experiment.
Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part I Pre-lab Assignment for Synthesis of an Alkyl Halide: A Nucleophilic Substitution Reaction, Part 1 1. From The Organic Chem Lab Survival Manual ( edition) by Zubrick • Review pages 201-204: Standard Reflux. • Review pages 127-140: Extraction • Review pages 164-189: Distillation, Simple Distillation. The Distillation Example, and The Distillation Mistake. 2. Read this...
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