Q1/ Do as required: 1- The role of HSO, in Preparation of Nitrobenzene. Explain 2- The using of NaOH with 2-naphthol in preparation of azo dye? 3- Preparation of Nitrobenzene in cool phase. 4- Adding HCI in the preparation of aniline from nitrobenzene. 5- When acetanilide reacts with bromine (x), acetanilide gives p-bromo acetanilide only, why? 6- In an experiment Hydrolysis of Acetanilide What color does the litmus naner

Q1/ Do as required: 1- The role of HSO, in Preparation of Nitrobenzene. Explain 2- The using of NaOH with 2-naphthol in preparation of azo dye? 3- Preparation of Nitrobenzene in cool phase. 4- Adding HCI in the preparation of aniline from nitrobenzene. 5- When acetanilide reacts with bromine (x), acetanilide gives p-bromo acetanilide only, why? 6- In an experiment Hydrolysis of Acetanilide What color does the litmus naner

Organic Chemistry

9th Edition

ISBN:9781305080485

Author:John E. McMurry

Publisher:John E. McMurry

Chapter19: Aldehydes And Ketones: Nucleophilic Addition Reactions

Section19.SE: Something Extra

Problem 28VC

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Q1/Do as required: 1-The role of H2SO4 in Preparation of Nitrobenzene. Explain 2- Preparation of Nitrobenzene in cool phase. 3-In an experiment Hydrolysis of Acetanilide What color does the litmus paper change to and why? 4-When acetanilide reacts with bromine (x), acctanilide gives p-bromo acetanil 5- why used strongly alkaline (NaOH)in Preparation of Aniline?
A chemist wanted to synthesize the anesthetic 2-ethoxy-2-methylpropane. He used ethoxide ion and 2-chloro-2-methylpropane for his synthesis and ended up with no ether. What was the product of his synthesis? What reagents should he have used?
What is the structural requirement for a substance to react with ammoniacal AgNO3? Why would acetylene react with Tollen's reagent but not cyclohexane or cyclohexene?
Arrange the compounds in order of INCREASING reactivity towards bromination. 1. Toluene, Nitrobenzene, Anisole, Aniline 2. Acetanilide, Benzaldehyde, Toluene, Iodobenzene 3. Acetophenone, Bromobenzene, Aniline, Phenol
Provide the structural formula of the products that are formed when acetophenone reacts with these reagents: 1. NaBH4 in Methanol 2. Ag(NH3)2+ 3. C6H5MgBr, then H3O+ 4. H2 in Pt 5. Hydroxylamine 6. Phenylhydrazine 7. LiAlH4 then water 8. HCN 9. Diethylamine 10. 2 CH3OH, HCl catalyst
When warmed in dilute sulfuric acid, 1-phenyl-1,2-propanediol undergoes dehydration and rearrangement to give 2-phenylpropanal. (a) Propose a mechanism for this example of a pinacol rearrangement (Section 10.7). (b) Account for the fact that 2-phenylpropanal is formed rather than its constitutional isomer, 1-phenyl-1-propanone.
Draw structural formulas for (1) the alkyltriphenylphosphonium salt formed by treatment of each haloalkane with triphenylphosphine, (2) the phosphonium ylide formed by treatment of each phosphonium salt with butyllithium, and (3) the alkene formed by treatment of each phosphonium ylide with acetone.
2-bromo-2-methylbutane undergoes hydrolysis reaction with water, H2O toform compound W. Compound X and compound Y are produced when 2-bromo-2-methylbutane undergoes elimination reaction with alcoholic ofsodium hydroxide, NaOH. (ii) What is the type of reaction involved in the formation of compound W? (iii) Identify the major product of the elimination reaction between compound Xand compound Y based on Zaitsev’s rule.
Dehydration of 2,2,3,4,4,-pentamethyl-3-pentanol gives two alkenes A and B. Ozonolysis of A gives formaldehyde and 2,2,4,4-tetramethyl-3- pentanone. Ozonolysis of B gave formaldehyde and 3,3,4,4-tetramethyl-2-pentanone. Identify and draw the structures of A and B, and explain how B could be formed in the dehydration reaction.
Sketch and explain the IR, UV, mass, and NMR (1H and 13C) spectroscopy data of Benzonitrile
Grignard reagent is a versatile tool in synthetic organic chemistry. Using bromocyclopentane as a starting material, show how a Grignard reagent, X, is synthesized. Reaction of X with water produces compound Y while treatment in carbon dioxide followed by hydrolysis forms compound Z. 3-methyl-2butanone reacts with X and hydrolyses to yield compound AA. Draw the structural formulae of compounds Y, Z and AA and write the chemical equations respectively.
X Upon ozonolysis, Compound X produces two compounds: Compound Y and Compound Z. Compound Y can also be prepared from the following synthetic route: PCC 1. R₂BH, THF 1. Mg. Et₂O PCC Compound Y 2. CH₂Cl₂ 2. NaOH, HO CH₂Cl₂ 3. H₂O* From this information, draw the structures of Compounds X, Y, and Z. For Compounds X and Z, different substituents are possible. For grading purposes, just use hydrogens as the substituents. Br مرد →] ►