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- 1. Identify the major product? &=&&&* b Br t-BuOK OH t-BuOH a 2. The hydroxide ion (OH) in the following reaction behaves as hote Br H K a. Electrophile; b. Nucleophile; c. Acid; d. Base a. NaCN, DMSO b. t-BuOH с + C. CH3CONA, CH3OH d. TsCl A H₂O + Br 3. For the following compound identify the reagent most likely to give you an elimination product by E2 mechanism d4. Acid Chlorides. Fill in the missing reagents or products. Indicate the section where each reaction can be found. (From Chapter 20- Reaction Wheel) A B 1. xs LIAIH4 2. H₂O H SOCI₂, pyr. 1. LiAl(OtBu)3H 2. H₂O C XS NH2CH3 CI CH3OH pyr. G H₂O D 1. xs PhMgBr 2. H30* (CH3)2CuLi F E4. Rank the following compounds in decreasing (strongest to weakest) order of basicity. NH₂ O₂N || NH₂ NH₂ B. II > III >> IV E. III >II>I>IV 11 ||| A. I> ||| > || > IV D. IV > III >II>I 5. Predict the product for the following reaction. CN H₂/Ni NH₂ NH₂ A. IB. II C. III D. IV E. I and II IV NH₂ C. IV> | > | > IV CN IV "NH₂
- Identify the best conditions to complete the SN2 reaction shown below. Tap here or pull up for additional resources Br CN A) HBr, THF B) NaCN, DMSO C) NaCN, MeOH D) NaNH2, DMSO E) NaN, DMSO (2. The two molecules A. and B. are in equilibrium in acidic conditions as is shown below. Draw a full arrow pushing mechanism to show how B. is formed from A. – you may draw protonation steps with a generic acid “H-A," as the proton donor. А. В. ОН Cat. HA HO,ety and labl the Lewis acid (electrophile) nd the Lewis base (mcleophile) in the fllowing actions Draw a curved arre tosho the mavement of electrons in the reaction and drew the predact o each reaction 21. What is the relationship betwoen the following two oompounds? A. Constitutional isomers B. Geonetric isomers C. kdentical compounds D. Different compounds 22. What is the relationship between the following two compounds? A. Constitutional isomers B. Geometric isomers C. Identical compounds D. Different compounds 23. Which pair of the following compounds are constitutional isomers? IV A. I and II B. Il and III C.l and IV D. I and IV
- 16) Reactivity of carboxylic acid 4 its derivatives. Determine which reagents are needed to complete traneformationg a) Dsocla 2) NaCl, DMSO b)) Nacl, DMSO c) D HCI, heat d) Dsocla e) ) Socla 2) Na NH3, IH] 2) Na NH3, H20 2) XSCH3 NH2 2) XS NH3Fill in the boxes below with the appropriate reagents or structures. Note that parts 3a) and 3d) include a hydrolysis reaction, thus the box should contain two products (assume that the pH has been adjusted so that the products exist as neutrally charged species). HN Hy- b) d) CH Br CH3 CH COOH CH3 Br. /FoBr CH3 Br₂ / FeBr major product major product H/H:O/A CH3 Bry/FeBr H HO/A9. Explanation The following reaction does not work well as written. What is the major product? (Assume excess reagents and the presence of small amounts of water.) - How can this reaction be changed to get the desired product? . SID: Zn(Hg) HCI
- 17. Mechanism aq NaOH H3O+ HO, 18. Mechanism cat. TSOH HO, MEOH, refluxWhat type(s) of catalysis is/are present in the enzymatic reaction below? SCOA H-His CH SCOA Asp CH COASH CH: CO HO-C-COO" HO-C-COO H-CH, acetyl-CeA SCOA CH, CH; CH COO COO COO oxaloacetate an intermediate citrate Select one or more: a. general acid b. general base C. metal ion d. specific base e. nucleophilic f. specific acidWhat is the main product of the following reaction? NaSCH3 acetone SCH; SCH; SCH;- I. I. II. IV.