aromatic benzene ring but failed to produce a fragrant yellow solution upon subjecting it to the nitration test. What may be a possible explanation for this? A. The benzene ring is part of a hi
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A certain compound is known to contain an
A. The benzene ring is part of a highly conjugated, blue dye molecule.
B. The benzene ring contains a strong electron-withdrawing group.
C. The benzene ring has no available sites left for electrophilic attack.
D. All of the given.
Kindly explain your answer in detail.
Step by step
Solved in 2 steps
- a) Put these three common types of carbonyl compound in order of decreasing reactivity ester amide acid chloride b) For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable? c) For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?A- What is the definition of acidity? B- Compare the acidity of ammonia and its aliphatic derivatives with of acidity pyrrole C- Melting points of pyrrole is higher than melting point of 1-methyl pyrrole explain your answer D- Why does pyrrole prefer electrophilic substitution reactions? E- Why Pyrrole is considered to be an aromatic compound ? F- Explain the Reimer-Tiemann reaction mechanism of heterocyclic compounds? G- Why pyridine is a weak base? explain your answer? H- Pyridine can react with electrophiles, electrophilic substitution ? explain your answer ? G- Explain the Diels–Alder reaction mechanism of heterocyclic compounds? I- From a-haloketone how can you prepared flowing compounds : Imidazole Oxazole Thiazole J- compared the acidity and basicity of Pyrazole and Imidazole with Pyrrole and Pyridine ?When performing a Grignard reaction it is also very important that the reaction be free from acetone (a chemical we commonly use to clean the glassware). Why must the glassware be free from acetone? A. Acetone reacts with the diethyl ether causing a side reaction to occur B. Acetone is a nucleophile that will react with the Grignard reagent C. Acetone reacts with the bromobenzene D. Acetone is an electrophile that will react with the Grignard reagent
- Why does the carbomethoxy group directs the reaction to positions that are meta to it ?b) Why the formation of dinitrobenzaote is substantially disfavored ?c) Would you expect small amounts of the ortho and para substituted product ? How would you remove them if they are formed ?d) Why does water have a retarding effect on the nitration ?e) Explain why Benzene has lower reactivity in electrophilic addition reactions than cyclohexene?Briefly explain why OtBu- sometimes favored over hydroxide as an elimination reagent?p-Fluoronitrobenzene is more reactive toward hydroxide ion than is p-chloronitrobenzene. What does this tell you about the rate-determining step for nucleophilic aromatic substitution?
- Why is the reaction of the type shown below usually done? a.To make an aldehyde or ketone less water soluble b.To make the molecule more reactive c.To protect a ketone or aldehyde carbonyl d.To increase the oxygen content e.To make the alpha hydrogens more acidicWhat contributes to the deactivating nature of halides inelectrophilic aromatic substitution? a. inductive effect b. octet rule c. delocalization of electron pairWhat is the purpose of combining nitric acid with sulfuric acid before starting a nitration reaction on an aromatic substrate? Sulfuric acid is necessary to react with nitric acid and form NO2+. Sulfuric acid is a necessary solvent. All aromatic compounds are soluble in sulfuric acid, but insoluble in nitric acid. Sulfuric acid plays no significant role. We are just following the procedure, which calls for sulfuric acid, even though it has no effect. Sulfuric acid is necessary to dilute the nitric acid. Concentrated nitric acid alone reacts too quickly and risks nitrating the substrate a second or third time.
- Is the crude (non-crystallized) acetanilide pure? Why or why not? Is the crystallized acetanilide pure? Why or why not?Enolates are formed by deprotonation of an α-carbon hydrogen. Answer the following questions about enolate formation. In the molecule shown, select the α-carbon hydrogen that would be removed to form an enolate when sodium hydroxide is used as a base. (use photo to answer this question). Then, Draw the thermodynamic enolate that results for the molecule in Part 1. Draw only the enolate resonance form that includes a formal charge on the α carbon. Be sure to indicate that formal charge as well as any lone pair of electrons in your answer.1. Put these three common types of carbonyl compound in order of decreasing reactivity ester amide acid chloride 2. For the least reactive, show the interconversion to its other resonance form: How does this electron delocalisation make it stable? 3. For the most reactive, draw the mechanism of its undergoing hydrolysis (reaction with H2O): Why makes this type of carbonyl so reactive to nucleophiles?