What compound is the major product of the reaction sequence shown below? (1) KCN, ethanol OH (A) NH2 (B) (2) LIAIH, (xS)/ether (3) dil. H* H20 он он (C) (D) Compound C Compound D Compound A Compound B
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- For each of the following pairs of species, which is the stronger nucleophile in ethanol? Explain. (a) H3C-OH or H,C-o° (b) H3C-OH or H;C-NH, (c) or (d) (е) CH3S` CH3SE (f) CH;Se or or BrWhich is the major substitution product of the reaction shown? (A) OEt (C) (E) no reaction Br NaOEt © 2019 ProtonGuru.com (B) (D) OEt (F) a mixture of more than oneWhich of the following is a major product of the reaction shown? (CH3),CHCH;NH2 **** HN- H* (cat./H;0 (A) (B) N- (C) (D) Compound D OCompound C O Compound A Compound B
- 3) Please draw the structures that correspond to omitted structure for each of the following synthetic sequences. HO Cro3 Cro3 (a) Product `OH Product H,0 HO PCC Cl РСС (b) Product (e) Product OH HO РСС NABHA (f) Starting Material (c) Product OH ELOHWhich of the following compounds is the major product of the reaction sequenc shown below? (1) Na CNCH3CN Br (A) (B) NH2 (2) H* H20, A он (C) (D) HO. O Compound C )Compound A Compound D )Compound BConsider the reaction scheme shown below. HCI [1] ОН (a) Provide a detailed mechanism for reaction [1].
- Draw the mechanism and predict the major product for each of the following reactions. (a) (b) ㅇ (c) 1. KCN, H2O_ ? 1. KCN, H2O ? 1. CH,MgBr, ether 2. NH,CI, H,O 2. H,SO4 2. H2SO4 (d) (e) 1. CuLi .? 2. NH,CI, H,O 1. CH;CH,SNa, ethanol 2. NH,CI, H,OIndicate the preferred product for the following reaction. (Hint: consider rearrangements if applicable) H*/H2O но OH но но а) b) c) d)For each reaction, draw the complete mechanism and the major organic product(s), paying attention to stereochemistry. (a) (b) OH LOH (еxcess) ? ? CH,Cl2 CH2CI2
- Draw the mechanism and predict the major product for each of the following reactions. (a) (b) O (c) NABH4 NABH4. 1. LIAIH4, Et,O ? CH;OH ? 2. H2SO4, H2O mOCH3 CH;OH7. For each of the following pairs of species, encircle the stronger nucleophile in acetone? (a) H3C-OH or H,C- (b). H3C- or H,C-OH2 (c) H3C-OH or H3C-NH2 (d) o (e) () or or or NH (h) CH,S CH;Se or or NH PH (1) CH,Se or BrDraw the product of each of the following reactions. (a) (b) NaN3 KCN ? H20 ? HOCH,CH,OH (c) (d) HCN 1. LIAIH4 ? HOCH,CH,OH ? 2. Hао (e) (f) CH;OH CH;ONa ? H,SO4 ? CH;OH (g) (Һ) CeH,CH,NH, ? 1. CH3LI ? 2. H,00 CH;OH