(a)
Interpretation:
The way by which given compound is synthesized from ethyne should be given.
Concept Introduction:
Lindlar catalyst: The catalyst is used for the hydrogenation of
Sodium in liquid ammonia: The catalyst is used for the formation of trans
Erythro isomer: In a Fischer Projection formula, if identical substituents are on the same side, then the isomer can be called as erythro.
Threo isomer: In a Fischer projection formula, if identical substituents are on the different side, then the isomer can be called as threo.
Meso compound: It is a symmetric compound which has the plane of symmetry. If there are two chirality centres and same set of four groups are attached on each chirality centre, then it can be called as meso compound.
(b)
Interpretation:
The way by which given compound is synthesized from ethyne should be given.
Concept Introduction:
Lindlar catalyst: The catalyst is used for the hydrogenation of alkynes in a syn manner. This means both hydrogen are added on the same side across the triple bond and the product obtained will be a cis product.
Sodium in liquid ammonia: The catalyst is used for the formation of trans alkenes from alkynes. Because of its more reactivity towards triple bonds, the reaction will stop at the formation of alkenes.
Erythro isomer: In a Fischer Projection formula, if identical substituents are on the same side, then the isomer can be called as erythro.
Threo isomer: In a Fischer Projection formula, if identical substituents are on the different side, then the isomer can be called as threo.
Meso compound: It is a symmetric compound which has the plane of symmetry. If there are two chirality centres and same set of four groups are attached on each chirality centre, then it can be called as meso compound.
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Chapter 7 Solutions
Organic Chemistry (8th Edition)
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- Identify the reagents you would use to achieve the following transformations: Reagents 1 Reagents 2 Select from the given reagents: A. Na, Pt B. H2, NH3 (1) C. H2, Lindlar's cat. D. Na, NH3 (I) E. H2, Pt F. Na, Lindlar's cat. Reagents 1 and Reagents 2arrow_forward7. Choose the best reagents to achieve each of the transformations shown below. Ф но. Br a. 1: H2/Pd-C. 2: H2SO4, H2O. 3: Dess-Martin periodinane b. 1: NaH. 2: BH3, then NaOH/H2O2. 3: CrO3, H2SO4, H20 c. 1: (BUOK. 2: Hg(OAc)2/H2O, then NaBHa/NAOH. 3: MnO2, acetone d. 1: NaOEt. 2: BH3, then NaOH/H2O2. 3: KMN04, then HCIarrow_forwardChoose the best reagents to complete the reaction shown below. A B C E D HO о O= OH RCO₂H 1. OsO4 (catalytic) 2. NMO 1. KMnO4, OH- (warm) 2. H₂O* MCPBA 2. H3O+ 1. Hg(OAc)2, H2O E 2. NaBH4, NaOH Q Qarrow_forward
- Br ÓCH, a. SN1 & E1 b. SN1 & E2 c. SN2 & E1 d. SN2 & E2 21. What is the reagent used for the following reaction? foid W a. BH3/THF, then H2O2/OH b. Hg(OAc)2/H2O, then NaBH4 с. Н2О, Н* d. H2, Pd/C 22. What is the major product for reaction below? H,SO4 OH d. none b. с. a. 3. Arrange the following substrates in order of increasing their SN2 reactivity with NaC bentane,arrow_forwardSelect an acceptable name for the compound below. (Stereochemistry is not indicated.) H. OH 2-(3-butenyl)-1,2-epoxy-1-ethanol 2-(3-butenyl)-3-hydroxyoxirane 5,6-epoxy-6-hydroxy-1-hexene 3-(3-butenyl)-2-hydroxyoxiranearrow_forwardWhat is the product of the reaction of bromoethane with each of the following nucleophiles? a. CH3CH2CH2O− b. CH3C‚C- c. (CH3)3N d. CH3CH2S-arrow_forward
- What product do you expect from the reaction of butan-2-one with hydroxylamine, NH₂O? a. O b. O c. O d. NH || CH3-CH₂CH₂C-CH3 NOH || CH3-CH₂CH₂C-CH3 NHOH I CH3-CH₂CH₂CH-CH3 NOH || CH3CH₂C-CH3arrow_forwardChoose the most accurate major product (only) of the following reaction. HCl in CH3OH a. (R)-2-methoxy-2-methylpentan-3-ol b. (R)-3-methoxy-2-methylpentan-2-ol c. (S)-2-methoxy-2-methylpentan-3-ol d. (S)-3-methoxy-2-methylpentan-2-ol e. (S)-2-ethoxy-3,3-dimethylpentan-3-olarrow_forward10. Answer Rank the following molecules in order of decreasing reactivity toward nucleophilic addition. CF3 CF3 CF3 H I CF 3 F CH3 Br IV H3C II III Cl Varrow_forward
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