d. e. f. C. 1. Provide the major product or reagents, as requested. a. b. Ph Ph 06 Jaom Ph -COOH mol of abiotio lyosnad to OH OH OH Morfools and most susid Br Mg OH ? CH3Li (excess) conc. KMnO4 A Na₂Cr₂O7 H₂SO4 CH₂N2 H₂O clozbyd stand out tot mai mdoom CO₂ H3O+
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- 37- 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) 55Provide 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,N3. Give the Major product(s): HI excess CHBr/KOH i-PrOH H, CH,CO,H Lindlar cat. 1. O, 2. (CH;)S 1. (Sia),BH/THF 2. NaOH, H,O2, H20 Give reagents
- Select the product 1. CH3MGB (excess) OMe 2. H20 OH но OMe А. С. D. C. B.Which alkene cannot be converted into an alkyl bromide with HBr, ROOR, hv, A? III IV A. B. C. D. E. All react Which synthetic route is best to give the major product shown below. ? x XA OH A. 1. BH3; 2. H₂O2, NaOH; 3. HBr; 4. CH3CO₂H B. 1. Br₂, 2. NaCCH; H₂, Lindlar's; 3. O3; 4. H₂O C. 1. NBS, hv, A; 2. H₂, Pd; 3. NaO₂CCH3 D. 1. NBS, hv, A; 2. NaCCH; 3. H₂2, Pd; 4. O3; 5. H₂O E. 1. NBS, hv, A; 2. H₂, Pd; 3. NaCCH; 4. 03; 5. H₂O Which synthetic route is best for the transformation shown below? OH ? OH A. 1. H₂SO4/heat; 2. HgOAC2, H₂O; 3. NaBH4 B. 1. HBr; 2. NaOH, DMSO C. 1. TsCl, pyr; 2. NaOH, DMSO D. 1. TsCl, pyr; 2. KOtBu; 3. BH3-THF; 4. H₂O2, NaOH E. 1. H₂SO4/heat; 2. BH3-THF; 3. H₂O2, NaOH =BFor reactions f. and g. below, provide all possible products! f. g. Br DBN
- 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) Imمگر compound e Reagents a. HX b. c. H₂O, H₂SO4 d. X₂ e. H₂. Pd 1. X₂, H₂O g. Oso, then NaHSO, h. 1. j. HBr, H₂O₂. hv k. 1. compound a bb Hg(OAc)₂, H₂O then NaBH, BH, then H₂O₂. NaOH O, then (CH₂)₂S 2 equivalents of NaNH₂ H₂, Lindlar's catalyst P. adi✔ m. Na/NH₂ n. H₂SO₂, HgSO4 o 9₁ bb r. compound b compound c S L PBr u SOCI₂ V. H₂PO w. H₂CrO₂ X PCC compound f (sia) BH then H₂O₂, NaOH 1 equivalent of NaNH₂ NBS, hy Br₂, hv (CH₂)₂CO¹K* compound d y. Z aa. bb. Na 104 mCPBA NaOH, H₂O compound gWhich set of reagents would be appropriate to synthesize bromobenzene from benzene? O 1. HNO3 in H2SO4; 2. H2CrO4 and heat O 1. H2CrO4 and heat; 2. H2 Pd/C O Br2 and FeBr3 O 1. CH3CH2CHCI and AICI3; 2. H2CRO4 and heat O4B12 and Fe O Heat and Br2 OBR2, HCI
- i. LIAIH4 i. deprotection .CO2ME J CH2=CHCOCH3 protection ii. H30* ii. dehydration K H The synthesis of K from H involves a 3-steps reaction as shown above. ii. Suggest the reagents involve in the protection, deprotection and dehydration steps.Provide the reagents necessary to carry out the following conversion. Br O 1. KOH; 2. Na2Cr2O7. 3. NaOH O 1. Na2Cr207/H2SO4: 2. H₂O 1. NaOH; 2. H₂O O 1. NaOH; 2. Na2Cr2O7/H2SO4/H20 O 1. NaOH; 2. H₂SO4: 3. H₂O OHQuestion one parts A though c a. Which product forms from the following reaction? Answer as letter choice only (i.e., "E" not "E.") CHO HOH HOH H OH H OH CHOH Brs. H0 ??? A. В. C. D. COOH HOH HOH H OH HOH CHOH CH-OH CHO COOH но HO HOH H OH HOH ČOOH HO -H но HO H H OH HOH CHOH HOH H OH COOH b. Which of the following structures shows the Haworth configuration in the alpha configuration of the beginning sugar? Answer as letter choice only (ie. "E" not "E."). сно HO-H HO H Намorth Form Alpha Configuration H- OH нон CHOH B. A. CH,OH CH,OH CH,OH CH,OH OH OH OH O OH OH OP OH он он он OH C. Answer the following question. What is the expected product of this reaction? CHO H- -Он NABH, HO-H H- ??? OH H- -OH ČH,OH 運運重 А. В. С. CH,OH COOH COOH H- HO-H H- OH -OH OH но- но H- H- H OH H- OH OH HHOH H- ČH-OH H- -OH ČH,OH COOH