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Q 11.28: Which of the following set of conditions is an efficient synthesis of the molecule...
С. D. Which of the following sequences of reagents will be used to do the following transformation? он Он А. 1. KOt...
С. D. Which of the following sequences of reagents will be used to do the following transformation? он Он А. 1. KOtBu; 2. Hg(OAc)2, H2O; 3. NaBH 1. TsCl, pyr; 2. KO B ; 3. BH3-THF; 4. H202, NaOH 1. H2SO4, heat; 2. Hg(OAc), H2O; 3. NaBH 1. TsCl, pyr; 2. NaOH; 3. BH3 THF; 4. H202, NaOH В. С. 8. Select the best reagents for the reaction below. Br Br Na ? А. 1. OsO4; 2. NaHSO3, H20 В....
Post-Lecture Quiz Q#4 Worksheet 19.3 Q3(c) Propose an efficient synthesis for the transformation below ОН OH...
Post-Lecture Quiz Q#4 Worksheet 19.3 Q3(c) Propose an efficient synthesis for the transformation below ОН OH Hint: This one does NOT involve a Wittig reaction See last slide for reagent options Post-Lecture Quiz Q#3 and Q#4 Reagent options (a) LAH, then H20 (b) H30*, heat (c) PhyP CH2 (d) Ph3P-CHCH, (e) Phyp-C(CH3)2 () Hg(OAc), H20 then NaBHA (h) BH, THF, then H2O3, NaOH (1) HBr + ROOR (1) MCPBA (6) KCN, HCN (1) Formaldehyde (m) Acetone (9) PCC
Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound...
Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound as starting materials? 1.P(Ph). CH3CH2Br - 2. base 3. ?? Compound (1) Cor съсно, не с gloch oh (D) The PCC oxidation of (3R,5R)-5 methyl-3-heptanol forms? PCC (3R,5R)-5-methyl-3-heptanol - A) A chiral compound of unknown configuration B) A chiral compound of known configuration C) A racemic mixture D) An achiral compound Which term is associated with 13 C-NMR? A) multiplicity B) wave number C)...
Propose an efficient synthesis for each of the following transformations: O OH. - H20 1) [H*),...
Propose an efficient synthesis for each of the following transformations: O OH. - H20 1) [H*), HO 2) NaNH2 3) Eti 1) [H"), HO 2) Eti O H. - H2O 4) H30* OH-H20 1) [H"). HO 2) NaNH2 3) Eti 4) H30 O H. - H20 1) [H*). HO 2) NaNH2 3) H30 ОН 1) [н']), но 2) LiAIH, он, - H,0 он, - H,0 1) [н'], но 2) Н, 3) НО* 1) [н'], но 2) H2 он, -но он,...
In each reaction box, place the best reagent and conditions from the list below. он 1)...
In each reaction box, place the best reagent and conditions from the list below. он 1) OH 2) 3) Вн-THF NABH4 in EtOH PCI3 Cl2, H2O H2SO4 (conc.) H202. NaOH, H2о dilute H30* Вг2 НаСrОд In each reaction box, place the best reagent and conditions from the list below 1) OH 2) PHCO3H in CH2Cl2 H2O2/NaOH O3 in CH2Cl2 PhLi in Et2O НаРОд, Д B2He in THF PCC in CH2Cl2 CH3ONa in CH3OH NaBH4 in EtOH
Practice Problem 11.15a Identify reagents that can be used for the following synthesis: Draw the structure...
Practice Problem 11.15a
Identify reagents that can be used for the following
synthesis:
Draw the structure of compound A.
Practice Problem 11.15a Identify reagents that can be used for the following synthesis: он Compound A он correct. Identify reagent(s) that can be used to convert the starting alcohol into compound A. (1) TsCI, py; (2) NaOMe H2, Pt H2504 (1) TSCl, py; (2) t-BuOk SHOW ANSWER X Incorrect. Draw the structure of compound A 2 Edit Correct Identify reagent(s) that...
Bioethanol, ethanol produced by fermentation of sugars, is a desirable starting material for chemical synthesis since...
Bioethanol, ethanol produced by fermentation of sugars, is a desirable starting material for chemical synthesis since it comes rom renewable resources OH Ethanol Ethylene glycol Identify the reagents you would use to accomplish this industrial transformation that converts ethanol to ethylene glycol. O 1) Os04; 2) NaHsO3, H20 3) conc. H2S04, heat O 1) conc. H2S04, heat; 2) KMnO4, NaOH, cold O 1) conc. H2S04, heat; 2) oH O 1) H2, Pt; 2) Hg(OAc)2, H20; 3) NaBH4 BH3 THF; 3)...
What is the major product is this reaction sequence? Cl2, hv 5 Hg(OAc)2, H20 NaBH4 Br2...
What is the major product is this reaction sequence? Cl2, hv 5 Hg(OAc)2, H20 NaBH4 Br2 NaOET EtOH FeBr3 OH OH OH ot Br Br Br A B с D ΟΑ B D Which is the major product of this reaction? CN 1. EtMgBr 2. acid workup one OH or one A B с D B оооо What is the major product of this reaction? 1. aq. NaOH 2. acid workup NH он for HN. NH но. он NH2 -он...
Provide the major product(s) for the following reactions: Show Stereochemistry when necessary HBr Br2 CH2Cl2 HBr...
Provide the major product(s) for the following reactions: Show
Stereochemistry when necessary
HBr Br2 CH2Cl2 HBr Br2 ROOR H20 H2O СН,ОН H30* 1) BH3, THE 2) H2O2, NaOH, H2O 1) Hg(O2CCF3)2 CH3OH 2) NaBH4, NaOH 1) Hg(OAc)2, H20, THF 2) NaBH4, NaOH H2 Pd/C
For each of the following short reaction schemes, draw the structures of the compounds that would...
For each of the following short reaction schemes, draw the structures of the compounds that would be formed at each spot in the scheme where there is a letter Scheme 1 1. NaBH4 SOCI2 А B H 2. H20 Scheme 2 tosyl chloride H3C-0 Na он с D pyridine H3C-OH Scheme 3 1. H20, Hg(OAC)2 PCC E F 2. NaBH4 CH2Cl2 Scheme 4 Br S NaOH G H + Br I H2N NH2 Scheme 5 1. MCPBA Na2Cr207 J K...
С. D. Which of the following sequences of reagents will be used to do the following transformation? он Он А. 1. KOtBu; 2. Hg(OAc)2, H2O; 3. NaBH 1. TsCl, pyr; 2. KO B ; 3. BH3-THF; 4. H202, NaOH 1. H2SO4, heat; 2. Hg(OAc), H2O; 3. NaBH 1. TsCl, pyr; 2. NaOH; 3. BH3 THF; 4. H202, NaOH В. С. 8. Select the best reagents for the reaction below. Br Br Na ? А. 1. OsO4; 2. NaHSO3, H20 В....
Post-Lecture Quiz Q#4 Worksheet 19.3 Q3(c) Propose an efficient synthesis for the transformation below ОН OH Hint: This one does NOT involve a Wittig reaction See last slide for reagent options Post-Lecture Quiz Q#3 and Q#4 Reagent options (a) LAH, then H20 (b) H30*, heat (c) PhyP CH2 (d) Ph3P-CHCH, (e) Phyp-C(CH3)2 () Hg(OAc), H20 then NaBHA (h) BH, THF, then H2O3, NaOH (1) HBr + ROOR (1) MCPBA (6) KCN, HCN (1) Formaldehyde (m) Acetone (9) PCC
Synthesis of Compound (1) using the Wittig reaction was carried out with CH3CH2Br and which compound as starting materials? 1.P(Ph). CH3CH2Br - 2. base 3. ?? Compound (1) Cor съсно, не с gloch oh (D) The PCC oxidation of (3R,5R)-5 methyl-3-heptanol forms? PCC (3R,5R)-5-methyl-3-heptanol - A) A chiral compound of unknown configuration B) A chiral compound of known configuration C) A racemic mixture D) An achiral compound Which term is associated with 13 C-NMR? A) multiplicity B) wave number C)...
Propose an efficient synthesis for each of the following transformations: O OH. - H20 1) [H*), HO 2) NaNH2 3) Eti 1) [H"), HO 2) Eti O H. - H2O 4) H30* OH-H20 1) [H"). HO 2) NaNH2 3) Eti 4) H30 O H. - H20 1) [H*). HO 2) NaNH2 3) H30 ОН 1) [н']), но 2) LiAIH, он, - H,0 он, - H,0 1) [н'], но 2) Н, 3) НО* 1) [н'], но 2) H2 он, -но он,...
In each reaction box, place the best reagent and conditions from the list below. он 1) OH 2) 3) Вн-THF NABH4 in EtOH PCI3 Cl2, H2O H2SO4 (conc.) H202. NaOH, H2о dilute H30* Вг2 НаСrОд In each reaction box, place the best reagent and conditions from the list below 1) OH 2) PHCO3H in CH2Cl2 H2O2/NaOH O3 in CH2Cl2 PhLi in Et2O НаРОд, Д B2He in THF PCC in CH2Cl2 CH3ONa in CH3OH NaBH4 in EtOH
Practice Problem 11.15a
Identify reagents that can be used for the following
synthesis:
Draw the structure of compound A.
Practice Problem 11.15a Identify reagents that can be used for the following synthesis: он Compound A он correct. Identify reagent(s) that can be used to convert the starting alcohol into compound A. (1) TsCI, py; (2) NaOMe H2, Pt H2504 (1) TSCl, py; (2) t-BuOk SHOW ANSWER X Incorrect. Draw the structure of compound A 2 Edit Correct Identify reagent(s) that...
Bioethanol, ethanol produced by fermentation of sugars, is a desirable starting material for chemical synthesis since it comes rom renewable resources OH Ethanol Ethylene glycol Identify the reagents you would use to accomplish this industrial transformation that converts ethanol to ethylene glycol. O 1) Os04; 2) NaHsO3, H20 3) conc. H2S04, heat O 1) conc. H2S04, heat; 2) KMnO4, NaOH, cold O 1) conc. H2S04, heat; 2) oH O 1) H2, Pt; 2) Hg(OAc)2, H20; 3) NaBH4 BH3 THF; 3)...
What is the major product is this reaction sequence? Cl2, hv 5 Hg(OAc)2, H20 NaBH4 Br2 NaOET EtOH FeBr3 OH OH OH ot Br Br Br A B с D ΟΑ B D Which is the major product of this reaction? CN 1. EtMgBr 2. acid workup one OH or one A B с D B оооо What is the major product of this reaction? 1. aq. NaOH 2. acid workup NH он for HN. NH но. он NH2 -он...
Provide the major product(s) for the following reactions: Show
Stereochemistry when necessary
HBr Br2 CH2Cl2 HBr Br2 ROOR H20 H2O СН,ОН H30* 1) BH3, THE 2) H2O2, NaOH, H2O 1) Hg(O2CCF3)2 CH3OH 2) NaBH4, NaOH 1) Hg(OAc)2, H20, THF 2) NaBH4, NaOH H2 Pd/C
For each of the following short reaction schemes, draw the structures of the compounds that would be formed at each spot in the scheme where there is a letter Scheme 1 1. NaBH4 SOCI2 А B H 2. H20 Scheme 2 tosyl chloride H3C-0 Na он с D pyridine H3C-OH Scheme 3 1. H20, Hg(OAC)2 PCC E F 2. NaBH4 CH2Cl2 Scheme 4 Br S NaOH G H + Br I H2N NH2 Scheme 5 1. MCPBA Na2Cr207 J K...
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