(8) Draw the principal organic product cxpected from the following reactions; indicate stereochemistry where appropriate. EIS Na ii. Mel 111. NaOH, CH,OH Bre iv. NaOH Mg. Et,0
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- 3. Write the product (s) formed in the following reactions. OH conc. HCI 1) DMSO/ (COCI), 2 eq/-60 °C 2) Et,N (excess) НО PCC/CH,Cl, OH HO. 1) KMNO,/H,O/ NAOH/25 °C 2) H3O*In each reaction box, place the best reagent and conditions from the list provided. 1) Br 2) 3) DEET (the active ingredient in over the counter insect repellant) 4) 5) Answer Bank Mg. Et,0 CH,CH,OH НСООСH, H,CO НСООН NH(CH,CH,),(2 equiv.) Br,, FeBrz CH,COOH HN(CH,CH,), (1 equiv.) NaNH, H,0+ CH,CH,NH, CO, CH,CH, Br SOC, NaCNWhat i the MAJOR praduct of the reaction below? Ch H3C- - NHČCH3 FeCl - NHČCH; H3C- H3C- - NHČCH; © H;C- - NHČCH, O H3C- - NHCH;
- Provide the products and detailed arrow pushing mechanisms for the following reactions: OSIME3 EtN CO.Me 1. base, dilute solution (10mM) 2. NaOH/MEOH-H,0 Acid, heat CO.Me37- The Sulphonation of benzene ring proceeds by using . ???? SO,H (A) Conc.HNO3 and conc. H2S04 (C) Conc. H2SO4 (B) Dil. H2SO4 (D) SO3/ H2SO4 38- Which of the following benzene derivative is the most reactive and ortho, para director? CHO NH. (A) (B) (C) (D) 39- What is the major product for the following reaction? NO, HNO, ???? H,SO, NO, NO, NO, NO (A) NO, (B) NO, (D) None of these 40- a – D - glucose differ from B-D-glucose (A) Because they are anomer (B) Because they are enantiomers (C) Because they are mirror image of each other (D) Because they are geometrical isomers 41-Ninhydrin test is given by (C) Proteins (D) Carbohydrates (B) Alcohols (A) Alkynes 42- Which test of the following can distinguish between 1°, 2° and 3° amines : (C) Acidic Test (D) None (B) Tolen's Test (A) The Hinsberg Test 43- How many a – amino acid are there in animal protein : (D) 10 (B) 20 (C) 15 (A) 55Which of the following equations does NOT show the correct main products? Оа. 1. BH, THF 2. H2ONAOH HO HO HO. O b. но Hg(OAc)2 H,SO,, H,O но H. 1. Hg(OAc)2, H2O 2. NABH /NaOH HO HO, HO O d. HO 1. BHSia,, THF. 2. H2ONaOH HO
- Provide the reagents in correct order necessory to carry out the following conversion. OCH Br 10 NO, C/FeCls CHaONa, HNO,/ H,S0, excess Br/FeBr3 O excess Bra/FeBrs, Cle/teCl, CHONG HNO:/HSO. Clb/FeClz HNO,/HSO, CH-ONa oxcess Br./feBr O excess Br/FeBr, Cl,/Fecl, HNO,/H,SO, CH ONG4. 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 MeO7. Reaction Scheme. NH₂ NH2 or two differnet methods (no same steps/reagents) C5H12N2 1. xs Mel, xs K2CO3 2. Ag2O, H₂O 3. heat Br2, xs NaOH, xs H₂O OHC 1.03 2. DMS CHO
- Arrange the ff. in their decreasing order (easiest first) of relative ease in the acid-catalyzed esterification of ethyl alcohol: I. (CH);CHCOOH II. CH;CH,COOH HI. (CH-);COOH A) III, II, I I, II, II II, I, II II, III, I3. Provide the structure of the major product(s) for the following reaction. 4. Predict the product for the following reaction. OCH3 А) I В) II C) II D) IV E) V NBS Д OCH3 OCH3 || 32, N 100 atm, 100ºС OCH 3 ||| OCH3 IV OCH3Which set of reagents is appropriate for the second step of the reaction? OMe heat OMe ОН + MeO MeO А. 1. NaBH4/MeОH; 2. Н+ 1. NaBH4/THF; 2. NaOH/H20 С. В. 1. LİAIH4/Et2O; 2. H+ D. 1. LIAIH4/Et20;B 2. NaOНІН20