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- A key step in the hydrolysis of acetamide in aqueous acid proceeds by nucleophilic addition of * OH (a) H3O* to CH3Ĉ NH2 (b) H2O to CH3ČNH2 + OH +OH (c) H3O* to CH,ČNH2 (d) HO¯ to CH3CNH2Reaction of acetic acid, CH3CO2H, with isotopically labeled CH318OH and catalytic sulfuric acid gives: 180 A) CH;COCH; + H2O CH;C "OCH; + H,0 180 II C) CH;COCH3 + H¿®O D) equal amounts of A and BWhat steps are needed to prepare phenylacetylene, C6H5C = CH, from each compound: (a) C6H5CH2CHBr2; (b) C6H5CHBrCH3; (c) C6H5CH2CH2OH?
- (a) (b) HO N N-H Catalytic H+ (-H₂O) ? (c) NH2 HO N (d)OH - NH, Br2/KOH →product; 1. (a-hydroxy amide) Product of this Hoffmann bromamide reaction is : OH (a) Ph – Ĉ-CH3 (Ъ) Ph — CHO (c) Ph- CH3 (d) Ph – CH2 -NH2 NO2PQ-23. What are the major products of this reaction? (A) i 18ОН ОН > (B) (D) 180 i Å CH 3 + NaOH (aq) 18ОН OH
- (b) Complete the following reactions : (i) D H3C CH3 H H كما .NO2 B | Bra/Dioxane .COCH3 APQ-17. What is the major product of this reaction? (A) H3CO њсоян (B) OH OH (C) OH O H OH OH 1) CH,MgBr (1 eq.) 2) NHÀ -OH (D) онянSpecialized reagents and their acronyms: MCPBA= meta-chloroperbenzoic acid; HOAC = acetic acid, NaOAc = Sodium Acetate; PhD phenyl = C6H5-; P(Ph)3 = triphenyl phosphine; NBS = N- bromosuccinimide, PBR3, SOCI2, AICI3, FeBr3, H2SO4, Li, Na, Mg, Brz2, CrO3, LDA = lithium diisopropylamide, PCC = pyridinium chlorochromate, KO-C(CH3)3, LAH = LIAIH4, (sia)2BH = disecondary isobutyl borane, KMNO4, HIO4 = periodic acid %3D %3D %3D %3D write the missing reagents and solvents over the arrows. Some transformation require multiple steps. In some cases there will be multiple arrows. -- -Li OH H- H.
- Which of the compounds, (a)-[d) below is the major product of the reaction: H* / H20 (a) (b) OH OH (c) (d) но OH O A. (a) O B. (b) OC. (C) O D. (d)(b) State the reagents needed to convert benzoic acid into the following compounds. (i) C6H§COCI (ii) C,H$CH2OH (iii) C6H$CONHCH32) Provide acceptable names for the following structures: | CH,—С—NН— Ph Ph — О—С- CH;