Which of the following reaction is a correct procedure to prepare alkenes. a. b. C. a C Br OH Br a OH KOH CH3CH₂OH H₂SO4, H₂O THF, 50 °C H₂SO4, H₂O THF, 50 °C KOH CH3CH₂OH Br Br
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- 9. Draw the constitutional isomer formed when the following alkenes are treated with each set of reagents: [1] H20, H2SO4; or [2] BH3 followed by H2O2, "OH. A io onutouTC.rvinmmoo ewo ebyoleen.g er besibhoyn motis M doso al waH s b. a. Seblaar molsHsno isq onol nose 2eob isticho to eqyt ewni.d Cnistnoo ennug 29ob anodogle yoam woH.o O bns 18 to alnemala erlT nertw bemot witam-S ae doue anexie leohtemmyeniQUESTION 33 Which of the following rate laws accurately describes the rate determining step in an Et elimination of alcohols? OA Rate - Mearbocationproton OH. Rate = kfoxonium lon)[alcohol O cRate kfcarbocation] OD Rate = loxonium lon] OE Rate kcarbocation][water) QUESTION 34 Aqtuieous KMnO4 which is purple, indicatos the presence of alkenos by reacting with them to forn coioriess precipitate and OA. none of the answers OR 12 diols, molybdenum dioxide, orange Or vicinal diols, manganese dioxide. brown O D. glycols, magnesium dioxide, brown OE alkyl chlorides, potasslum hydroxide, yellow O F. geminal diols, manganese dioxide, brown QUESTION 35 five carbon (S)-(+) Carvone was isolated from caraway seeds and belongs to a group of natural compounds called O steralds, one pentane O alkaloids, three, tert-butyl O terpenoids, two, isoprene which contain subunit(s) pentanoids, one, pentane O None of the above4. Give the IUPAC names for the following compounds. OgH (a) Br OCH? HO HO (b) CI THT OAO)eHI (c) 100 noileibyrab of betoejdua af woled bnuogn (Jouborg eri to labom a pnianm T ani) r al ens CI for
- Which of the following reactions gives the product shown? 1. PhOH, Hg(O CCF2 Ph 2. NABH4 1. BD; HO 2. H-O2, OH H3C RCOH CH3 CH3 OH POCia RCO;H BF, Ph py Ph сноWhich alkene is the main product of the following reaction? OH Cat. H2SOWhat is the major organic product of the following reaction? OI || ||| OIV OV 1. LIAH, 2. H₂0 H₂N 101
- Question 10 of 20 > Given two sets of reaction conditions and two products, select the structure of the common starting material. O Br O Br Br Br The unknown starting material is: `ОН OH `ОН Br₂ (2 equiv.) OH Starting material O H₂ (2 equiv.) Raney Ni OH OH OH#20 B Draw structural formulas for all possible carbocations formed by the reaction of each alkene with HCl.The pi bond of an alkyne is O shorter, stronger O shorter, weaker Olonger, weaker Olonger; equal strength Olonger, stronger Oshorter; equal strength and W www Inadaanan ww than the pi bond of an alkene. BA
- What is the major product of the following reaction? NH* CrO3CI" HO. CH2C1, O a. butanone O b. butanoic acid O c. but-1-ene O d. none of the other answers e. butanalwhy H2SO4 has a positive reaction with cyclohexene?4. What are the products obtained from the following elimination reaction? Indicate the major product. CH;CH2CCH3 H2O CI 5. a) Determine the major product that is formed when the alkyl halide reacts with a hydroxide ion in an elimination reaction. CH;CH,CH,CH,CCH3 Br b) For the major elimination product obtained in 5a), which stereoisomer (cis or trans) is obtained in greater yield? Draw the two isomers and provide the names of the compounds.