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- (c) (d) Н (e) НО HO ОН н Na₂Cr₂O7 H2SO4, H2O 1. LiAIH4 2. H2O workup 3. PCC 4. (Ph)3PCH2 OH H2SO4 (catalytic)5. Hence show that: OU (hv exp(-ẞhv)) hv exp(-2ẞhv) =-3Nhv + oß (1-exp(-ßhv)) (1-exp(-ẞhv)) Hint 1: you will need to use the quotient rule: yf'(x) xf'(y) f'(x) f'(y) (f'(y))² (f'(y))² Hint 2: the following identity will avoid you having to use the chain rule: d (1 − e√(x)) = − f'(x)e√(x) dxcheuge chauge 14) 2 Balanie! the pollowing equations Hz" O2 ー> H20 2.1 2.2 1202 + H20 2.3. sOz
- 6) What is the nucleophilic site in the following compounds? H3C-0-CH3 H2C=CH2 CH;NH2 II II A) | = Hydrogen; I| = TT electrons in bond; III = nitrogen. %3D B) | = Oxygen; II = carbon; III = nitrogen. C) Hydrogen; II = carbon; III = carbon. %3D D) | = Oxygen; II = TT electrons in bond; III = nitrogen.OH OH + H;C=CH-CH, NO2 (a) (b) OH HNO,, H2SO, (a) (b) (b) (c) H,PO, (d) H,PO, (e) 2. NANO2. HCI 1. H2, Pd/C H,PO, (1) NO2 Jork out the details of the above retrosynthesis on a separate sheet of paper, and then draw the structure of (e). • You do not have to consider stereochemistry. • You do not have to explicitly draw H atoms. • Do not include lone pairs in your answer. They will not be considered in the grading. • Include counterions for diazonium salts.On which do you expect to have a more intense and concentrated “hotspot” of negative charge: methoxideion or bicarbonate ion?
- Determine the Ksp of the following reactions. NaC2H302 2 Na* + C2H3O2 b. HBr 2 H* + Br c. Zn(OH)2 Zn+2 + 2HO- 946(b) The rate constant for the solvolysis of X=H, Y=H is 1.14 times greater than that of the dideutero X=D, Y=H but almost identical (0.99) with that of the monodeutero X=H, Y=D. X. Ме,[1,3] Sigmatropic migrations of hydrogen cannot occur under thermal conditions, but [1,3] sigmatropic migrations of carbon can occur under thermal conditions. Explain!
- Solve the se for the missing parts to mouce it complete. Cive all the possible if es produt. stoate which is major there is one. .F Ma a EtO b) con HNO3 AlCl3 c) NC Cl2/FeCls ? Mé fuming Hy SOu so ? NO2 e) CottsO Na モ40An unknown compound of molecular formula C5H10O2, gives the HNMR data shown below. Which of the following structures is consistent with the data? A doublet at 1.23 ppm (6H), a Singlet at 2.10 (3H, and a Septet at 4.98 ppm (1H) (а) (b) HO HO. (d) (e)Which of the Allwing Paren thesis) has the highest molor heat Cupacity a) Glyeine (97A) 6) Alanıne (121 A) f Leucine (1AI A) Phunylalanıne (228 n") S Tryptophan (204 A) Omino aud residues (accessible surfaa area in In water?