20 Identify the alkene which would give the following products upon ozonolysis followed by reduction Zn. [(1) O3; (2) Zn / H₂O] A. C. ملی CH₂CH₂ -CH₂CH₂ B. jc D..
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- 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 =BChemistry Give the major product of the following reactions with the appropriate stereochemistry and regiochemistry 1. CH3 Compound A m. m. 1. Compound A; 2. dil. HCI CI Br n. 1. Compound A; 2. dil. HC1 Ph 0. 1. Compound A; 2. dil. HCI O2N.Give the best reagents for the reaction. (CH₂)₂2CHCH₂CH₂C=CH H2O, H2SO4, HgSO4 BH3, H2O2, NaOH OK2Cr207 O H2, Lindlar Catalyst (CH;); CHCH;CHỊCHỊCH O
- The following presented reaction scheme lead to the synthesis of which major product from benzene, assuming separation of products is possible? so, 1. Na OH Cl2 Product Product HSO, 2. H,0* FeCl3 O A. Meta-Chlorophenol O B. para-ChloroSulfenic acid OC. Para-Chlorophenol O D. Meta-chloroanilineIdentify the missing reactants/reagents B in the reaction shown below? B HO H a. 1. NaH; 2. BH3, H₂O O b. 1. NaBH4; 2. HCI, H₂O O c. 1. NaOH; 2. NaBH4 O d. 1. BH3; 2. NaCl, H₂O Ph₂N Which of the following is correct with regard to the below leaving groups? Br b Pho + NaCl с + BH3 O a. The order from best leaving group to worst leaving group is c, d, a, b.19). What is the major organic product of the following reactions? LBCH COOH 2. Pyridine ? (-HB) (4) D C " & & & & &
- A nitrile X is treated with LIAIH4 to obtain compound Y(C2H¬N). In a separate reaction, X is hydrolyzed in an acid medium to obtain Z. The product obtained after mixing Y and Z will be A. CH;CONHCH2CH3 B. CH3CH2CONHCH2CH3 C. (CH3COO)(CH;CH;NH3*) D. (CH3CH2CO0)(CH;NH2*)Epoxidation is typically achieved by treating an alkene with: a. bromine b. NBS с. ТСРВА O d. BH3, then NaOHDraw the major organic product from the reaction sequence provided: Select Draw Rings More // Cl C 1. SOCI2 2. Et,CuLi 3. (a) LIAIH4 (b) H2O OH
- What was the starting alkyne and the corresponding reagents for the formation of (this is acetylide formation): CH;CH2CH2C=C-H H-C=C–H and NaNH2, NH3 , CH3CH2Br B H-C=C–H and NaNH2, NH3 , CH;CH2CH2CH2B. H-C=C-H and NaNH2, NH3, CH3CH2CH,Br D Н—СЕС—H and NaNH2, NH3, CH;CH2CH2CH,CH,BrWhich of the following reagents would give the major product in the reaction? ? CH;CH-CH2CH2B CH;CH,CH=CH2 а. NaOCH, O b. H,0 O. KOC(CH,); O d. KOHSynthesize each compound from toluene (CgH,CH3) and any other organic or inorganic reagents. a. CeHsCH2OC(CHa O,N H2N. b. CgH;CHO d. HOOC- -NO2 f. HO. -COOH CHO C. е. g. Br