Question 28 What is (are) the major product(s) of the nucleophilic substitution reaction shown below? H₂O OH OH HO & & & & IV 1 Only I OI and II O Only II OII and III OI and IV 13
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- QUESTION 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. Draw structures for products of the following reactions. PaCl, (Bu water tBu PdCI, methanol OH CHCI, NaOH, water Me,N LDA, THE, 0°C BulI (2 moles) Bri THF, -78°C Buli THE, °C Br Pd(OAch THE, 0C MeOAcetylene is a very weak acid; however, it will react with moist silver(I) oxide and form water and a compound composed of silver and carbon. Addition of a solution of HCl to a 0.2352-g sample of the compound of silver and carbon produced acetylene and 0.2822 g of AgCl. (a) What is the empirical formula of the compound of silver and carbon? (b) The production of acetylene on addition of HCl to the compound of silver and carbon suggests that the carbon is present as the acetylide ion, C22-. Write the formula of the compound showing the acetyl ide ion.
- 1. Predict the structure of the organic product for the following reduction reactions [6 x 2] a) 요. NaBH4 H MeOHstry Steps Chi Cheps b) Chemistry Steps H₂ Pt Chemistry Steps ? Chemistry Steps 1) LiAlH 2) H₂O Chemistry Steps ? d) H Chemistry Steps NaBH4 MeOH MeOH Chemistry Steps CO Chemistry Steps 0= 1) LiAlH OEt 2) H₂O Chemistry Steps NaBH4 ? A Chi Chi ? OEt ? MeOH ChiChemist Escoja los reactivos necesarios para la siguiente síntesis: A Br OH A = Mg, THF B = PCC, CH2C12 C= 1. acetona; 2. H2O Leyenda de reactivos: acetona = O + x + x formaldehido= H H MgBr B OH acetaldehído= HWhat is/are the product(s) formed from the following reaction? ... 1) Hg(OAc)2, H20 2) NABH4 он HO + en en III. + en IOH en I. IV. A) I only B) II only Il and III I and II
- 14C labelled OTS RCO H 16. →product; Product of this reaction is : no label ОCOR OCOR (a) (b) (c) both (a) and (b) (d) None of theseOH Cl what reagent and type of reaction has happened? (A HCI, H2O ; halohydrin formation (B C12, H20 ; halohydrin formation c) 2HCI ; hydrohalogenation D C12, H20 ; halogenationWhat is the major elimination product obtained from the following reaction? NaOMe Br MeOH ||| || O IV II IV
- What is the major organic product of the following reaction? OI || ||| OIV OV 1. LIAH, 2. H₂0 H₂N 101owing reactions proceeds via an SN1 or SN2 of the reaction: (b) S2 pro85 39 Br tort atubong auonsV HMPAnoitutitaduaIdentify the major product of the reaction of an alkyne shown below. | ||| OH 1. Hg(OAc)2, H2O 2. NaBH4, NaOH ОН || IV 。 。 H