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- 4. Draw the organic products formed in each of the following reactions. il b. C. 1₂ (excess) -OH CE .CO₂Et [1] LDA CHz(CO,Et)2 [2] CH₂CH₂Br [3] H₂O+, A [1] NaOEt [2] CH₂CH₂Br [1] NaOEt [2] CHSCH₂Cl (3) H₂O*, A d. 'OEI [1] NaOE1 [2] CH₂CH₂CH₂CH₂Br [3] H₂O*, A [1] LDA [2] CH₂CH₂Br37- 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) 55Choose the most correct set of reagents for the following reactions. 1. ? a O b O C O 으으 OH 2. ? OMe a. 1. MsCl, pyridine; 2. NaOCH3, CH3OH b. 1. HCI, pyridine; 2. NaOCH3, CH3OH c. 1. PCI 3, SOCI2; 2. NaOCH3, CH3OH d. 1. TsCl, pyridine; 2. NaOCH3, CH3OH e. 1. CH3O-, pyridine; 2. H* f. 1. Pl3, pyridine; 2. -OCH3
- select reagents: cyclopentanone Reagents a. C6H5CHO b. NaOH, ethanol c. Pyrrolidine, cat. Hj. d. H₂C=CHCN e. H3O+ f. LDA g. A) bg EtOC(=O)CO₂Et h. i. B) ka k. I. m. O: BrCH₂CH=CH₂ NatOEt, ethanol Br₂, H+ K+ t-BUO™ CH2(CO2Et)z heat C) jh CO₂Et D) Im6. Predict the product for the following reaction. "NH₂ Br H₂N NO₂ D. H₂O* A. Fe/HCI IV OH OH Br 11 NH₂ "NH₂ H₂N A. IB. II C. III D. IV E. V 7. Provide the reagents necessary to carry out the following reaction. NH₂ V 1. LIAIH4 2. H₂O NH₂ B. H₂CCOCI C. Br₂/FeBr3 E. dil. Na₂CO3 III15. Give the major organic product, paying attention to stereochemistry (syn/anti). Indicate if a racemic mixture is expected. a. a. BH3 b. H2O2, OH a. BH3 b. b. H2O2, OH a. BH3 a. BH3 C. d. b. H2O2, OH b. H₂O2, OH e. a. BH3 b. H₂O2, OH
- 6. Provide the structure for the major product in the following reactions. b. P f. OH g. Lia * Oia ملی CI 1. SOCI₂, pyr. 2. to Br 2 1. LIAIH4 (xs) 2. H₂O 1. LIAI(OR) 3H 2. H₂O 2. NH₂ Et₂CuLi 1. EtMgBr (xs) 2. H₂O 1. Mg 2. CO₂ 3. H* 4. SOCI₂, pyr 1. [H], NaBH3CN, EtNH₂ CI pyridineProvide the appropriate reagents or product in the following examples. 1. OH O Он 2. 1. m-CPBA, CH-C MgBr THF; aq. HCI 2. Me 3. PCC, CH,C, 3. 1. LDA, THF; Mel 2. LDA, THF; Mel 3. EILI (2 equiv), Cul (1 equiv). THF: then Br 4. Meo Meo 5. Meo Meo. OMe 6. Br 1. BuLi, Ph,P. THE OMe Me 2. Br, MeCN 3. aq. HCI (4 M) Me 7. он но Et,N9. The reaction of benzene with principally which of these? in the presence of anhydrous aluminum chloride produces anyl W e tello a) I. b) II. c) III. d) IV. e) V. IV CH.CHa
- 3. Stereochemistry. Predict the stereochemistry of the major product formed for each of the following reactions. Give an explanation for your choice. а. ÇHO SiMe3 A `OPMB MgBr2 • Et20 95% (20:1) b. a. MegAI, Cp2ZrCl2 (cat.) CICH2CH2CI B b. 70% Br, ZnCl2 (1 eq) Pd(0) (cat.) с. 1. CBr4, Ph3P, Zn 2а. п-BuLi (2.1 eq), hexane, THF 2b. H20 workup CHO 3. 56% BH, THE 4. Pd(PPH3)4 (cat.) NaOEt, toluene, 80 °C Br d. Me 2. TSOH• H20 (1.2 ec) TBSO. 1а. Ме2CuLi, Elyо D2 (bicyclic) 94% D1 1b. NC-CO2ME, HMPA 91% 1c. aq NH,CI workup toluene, refluxIdentify the products A and B in the following reaction sequences: 1.НСНО 2. Me2NH i. Mel II N. 2. NaCN .N. N- || = | = А. CN CN || = В. | = .N. Il = N' CN N. С. .N. I| = N' CN N. D. IIA. B. C. D. H2 PJ/C HBL 1.BH3. THE 2. NaOH/F₂0₂ Brz) hu 'E. вся hu > 1. What are the major organic productes) of the reaction. Include all Stereochemistry and identify any meso compounds. 2. Would the Solution of the products be optically active of not active. what would be the Ceason for the choice?