Propose an efficient synthesis for the transformation below, using two sequential reductive aminations. Enter the appropriate number or letter from the reagent list handout.
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Propose an efficient synthesis for the transformation below,
using two sequential reductive aminations. Enter
the appropriate number...
Propose an efficient synthesis for the transformation below. Enter the appropriate number of letter from the...
Propose an efficient synthesis for the transformation below. Enter the appropriate number of letter from the reagent list handout Step 1 Step 2 Step 3 OH Alkyl Halides (X = CI, Br or 1) and Acyl chlorides: Assume Allig 15 present, if needed CIP CU CH3X X CI E A B EE Ketones. Aldehydes and Epoxides: Assume "then H20" is included if a protonation step is needed F A A K 0 MN Р Grignard, Wittig and Organocuprate Reagents: Assume...
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
Propose an efficient synthesis for the following transformation. The transformation above can be performed with some...
Propose an efficient synthesis for the following transformation. The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B Br2 HBr, ROOR cat. Os04, NMO D E H2, Pd F H2SO4, H20, HgSO4 HBO G 1) O3; 2) DMS H 1)...
Complete the following synthesis by selecting from the list of 14 reagents below. Each reagent (or...
Complete the following synthesis by selecting from the list of 14 reagents below. Each reagent (or set of reagents) is labeled as a letter. In the answer box, simply place the order of reagents used as uppercase letters. For example, if your synthesis involves using reagent A followed by B and then C, and then D, your answer would be: ABCD. OLU SO3 Br2 PBra OH H2PO2 1. LiAlH4 2. H20 NaNO2 HCI H2SO4 FeBrz H2O, heat HNO3 NaBH3CN NBS...
Practice Problem 11.18a Propose an efficient synthesis for the following transformation. OH The transformation above can...
Practice Problem 11.18a Propose an efficient synthesis for the following transformation. OH The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B с H2, Lindlar's cat. HBr, ROOR 1) xs NaNH2, 2) H2O D E F HBr Br2 H2S04, H20,...
10. Complete the following synthesis by selecting from the list of 10 reagents below. Each reagent...
10. Complete the following synthesis by selecting from the list of 10 reagents below. Each reagent (or set of reagents) is labeled as a letter. In the answer box, simply place the order of reagents used as uppercase letters. For example, if your synthesis involves using reagent A followed by B, followed by C, and then D, your answer would be: ABCD. ? 'H Nang H2 1. LIAIH4 PCC OH HO Pd-C 2. H20 H* A B с D E...
1)? 2) ? 3) ? 12? NO2 Choose from the following list of reagents. KMnO4, NaOH,...
1)? 2) ? 3) ? 12? NO2 Choose from the following list of reagents. KMnO4, NaOH, heat Br2 Fuming H2SO4 H30+ H Excess NBS Zn, HCI HNO3, H2SO4 Zn(Hg), HCI, heat Enter the correct letter for each step of the reaction in the boxes below. (Reagents cannot be used more than once) Reagent 1: Reagent 2: Reagent 3:
Integrated Problem 22.90 Incorrect. In the first asymmetric synthesis of (-)-(5,5)-homaline, a symmetric alkaloid isolated in...
Integrated Problem 22.90 Incorrect. In the first asymmetric synthesis of (-)-(5,5)-homaline, a symmetric alkaloid isolated in the early 1970s, a key intermediate was compound 2 (Tetradhedron Lett. 2012, 53, 1119-1121). Provide the reagents for converting compound 1 into compound 2. Make the tertiary amine at first. 'N, Me HN Two steps .CO.Me co Me Ph Ph 1 2 Choose from the list of reagents: NH NH Hyo, Na ByCN b. HjO", NBH CN HO. NaBHCN H H HC CH d....
Integrated Problem 12.54d X Incorrect. Propose an efficient synthesis for the following transformation: vi CI The...
Integrated Problem 12.54d X Incorrect. Propose an efficient synthesis for the following transformation: vi CI The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B с t-BuOK 1) MeMgBr; 2) H20+ Na2Cr207, H2SO4, H20 NaOH D F G H E...
Using the list, propose the forward synthesis of the retrosynthesis shown below (and number of steps...
Using the list, propose the forward synthesis of the retrosynthesis shown below (and number of steps can be used, so long as they get to the desired product in as high a regioselectivity as possible). Please report your answer by typing the letters/symbols sequentially HO ОН A. CUCI, B. CuBr. 0 °C C. Cu20, Cu(NO3)2, H20.0°C D. CuCN. 0 °C E. SO3, H2SO4, 100 °C F. Cl2, FeCl3, THF, 65 °C G. Br2, FeBrz. THF, 65 °C H. ACCI, AICI3....
Propose an efficient synthesis for the transformation below. Enter the appropriate number of letter from the reagent list handout Step 1 Step 2 Step 3 OH Alkyl Halides (X = CI, Br or 1) and Acyl chlorides: Assume Allig 15 present, if needed CIP CU CH3X X CI E A B EE Ketones. Aldehydes and Epoxides: Assume "then H20" is included if a protonation step is needed F A A K 0 MN Р Grignard, Wittig and Organocuprate Reagents: Assume...
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
Propose an efficient synthesis for the following transformation. The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B Br2 HBr, ROOR cat. Os04, NMO D E H2, Pd F H2SO4, H20, HgSO4 HBO G 1) O3; 2) DMS H 1)...
Complete the following synthesis by selecting from the list of 14 reagents below. Each reagent (or set of reagents) is labeled as a letter. In the answer box, simply place the order of reagents used as uppercase letters. For example, if your synthesis involves using reagent A followed by B and then C, and then D, your answer would be: ABCD. OLU SO3 Br2 PBra OH H2PO2 1. LiAlH4 2. H20 NaNO2 HCI H2SO4 FeBrz H2O, heat HNO3 NaBH3CN NBS...
Practice Problem 11.18a Propose an efficient synthesis for the following transformation. OH The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B с H2, Lindlar's cat. HBr, ROOR 1) xs NaNH2, 2) H2O D E F HBr Br2 H2S04, H20,...
10. Complete the following synthesis by selecting from the list of 10 reagents below. Each reagent (or set of reagents) is labeled as a letter. In the answer box, simply place the order of reagents used as uppercase letters. For example, if your synthesis involves using reagent A followed by B, followed by C, and then D, your answer would be: ABCD. ? 'H Nang H2 1. LIAIH4 PCC OH HO Pd-C 2. H20 H* A B с D E...
1)? 2) ? 3) ? 12? NO2 Choose from the following list of reagents. KMnO4, NaOH, heat Br2 Fuming H2SO4 H30+ H Excess NBS Zn, HCI HNO3, H2SO4 Zn(Hg), HCI, heat Enter the correct letter for each step of the reaction in the boxes below. (Reagents cannot be used more than once) Reagent 1: Reagent 2: Reagent 3:
Integrated Problem 22.90 Incorrect. In the first asymmetric synthesis of (-)-(5,5)-homaline, a symmetric alkaloid isolated in the early 1970s, a key intermediate was compound 2 (Tetradhedron Lett. 2012, 53, 1119-1121). Provide the reagents for converting compound 1 into compound 2. Make the tertiary amine at first. 'N, Me HN Two steps .CO.Me co Me Ph Ph 1 2 Choose from the list of reagents: NH NH Hyo, Na ByCN b. HjO", NBH CN HO. NaBHCN H H HC CH d....
Integrated Problem 12.54d X Incorrect. Propose an efficient synthesis for the following transformation: vi CI The transformation above can be performed with some reagent or combination of the reagents listed below. Give the necessary reagent(s) in the correct order, as a string of letters (without spaces or punctuation, such as "EBF"). If there is more than one correct solution, provide just one answer. A B с t-BuOK 1) MeMgBr; 2) H20+ Na2Cr207, H2SO4, H20 NaOH D F G H E...
Using the list, propose the forward synthesis of the retrosynthesis shown below (and number of steps can be used, so long as they get to the desired product in as high a regioselectivity as possible). Please report your answer by typing the letters/symbols sequentially HO ОН A. CUCI, B. CuBr. 0 °C C. Cu20, Cu(NO3)2, H20.0°C D. CuCN. 0 °C E. SO3, H2SO4, 100 °C F. Cl2, FeCl3, THF, 65 °C G. Br2, FeBrz. THF, 65 °C H. ACCI, AICI3....
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