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2. Provide missing conditions, reactants in the following synthesis. Propose the structures for Products A, B...
2. Provide missing conditions, reactants in the following synthesis. Propose the structures for Products A, B...
2. Provide missing conditions, reactants in the following synthesis. Propose the structures for Products A, B and C. Note: each step consists of more than one transformation. Step 1 Step 2 Hint: can use you 1. H, ethylene glycol, heat 2. NaOHH2o, heat 3. Н,о" Br Product A Step 3 HCI dilute PhMgBr, ether Product C Product B acetone 2. H,о" Step 1: Step 2: Step 3:
Propose a mechanism for the follo heat Br Draw all missing reactants and/or products in the...
Propose a mechanism for the follo heat Br Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Add charges where needed. Electron flow arrows should start on an atom or a bond and should end on an atom, bond, or location where a new bond should be created H-Br: Cl H-Br: H20
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,
using two sequential reductive aminations. Enter
the appropriate number or letter from the reagent list handout.
Propose an efficient synthesis for the transformation below, using two sequential reductive aminations. Enter the appropriate number or letter from the reagent list handout. Step 1 + NaBH3CN, H+, Step 2 - NaBH3CN, H+ Reagent List (Updated 4/30/2020) Enter # or letter in the appropriate boxes. Note: Exam responses are case insensitive Alkyl Halides (X = Cl,...
12) (85 pts total) Provide the bond-line structures of the reactants and of the products. For...
12) (85 pts total) Provide the bond-line structures of the reactants and of the products. For the products labeled with a star, give the names of the new functional groups formed in the products. (A) (13 pts) CH3OH CHỊCH NHA phosp gene (COCI) (B) (9 pts) maleic anhydride leq aniline (C) (6 pts) KOH, H2O, A N-cyclohexyl- propan amide (D) (11 pts) 2,2-dimethylprop an al ethylene glycol (E) (13 pts) le 1 eg Сн,он CH3OH не 2-methyl cyclopentanone (F) (6...
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...
draw the missing structures for the letters Scheme 1 Br S NaOH CI + A B...
draw the missing structures for the
letters
Scheme 1 Br S NaOH CI + A B + С H2N NH2 Scheme 2 1. MCPBA Na2Cr2O7 D E 2. H20, H30+ H30+ Scheme 3 1. LIAIH4 PBr3 F G Н 2. H30+ ether Scheme 4 1. H20, Hg(OAc)2 DMP H I 2. NaBH4 CH2Cl2 Scheme 5 OH tosyl chloride Na J K pyridine ОН
Queston 6 (56 pts.). Provide the missing major organic products, or reagents/conditions, or organic reactants, as...
Queston 6 (56 pts.). Provide the missing major organic products, or reagents/conditions, or organic reactants, as appropriate. Do not forget to include stereochemistry as appropriate unless specified otherwise. 2. Hgo :0: :o 1. Na* CN 2. H30* /heat gnore stereochemistry c) :Br: :OH d) 1 Equiv H3C CI: e) Ph h) heat (Aldol reaction)
18 Question (3 points) Draw the three requested missing structures for this acetoacetic ester synthesis. Just...
18 Question (3 points) Draw the three requested missing structures for this acetoacetic ester synthesis. Just draw the main organic product of each step-leave out any byproducts 1. NaOEt, EtOH 2. PhCH2Br 3. NaOEt, EtOH 4. CHal 5. NaOH, H2O 6. H30", heat 1st attempt Part 1 (1 point) al See Periodic Table See Hint Draw the product after Step 2:
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
Provide the missing products for the following molecules: Br Br- 1. K* OEt / EtOH 2....
Provide the missing products for the following molecules:
Br Br- 1. K* OEt / EtOH 2. H30* / H20, Heat 1. NaOEt / ETOH CI 2.
2. Provide missing conditions, reactants in the following synthesis. Propose the structures for Products A, B and C. Note: each step consists of more than one transformation. Step 1 Step 2 Hint: can use you 1. H, ethylene glycol, heat 2. NaOHH2o, heat 3. Н,о" Br Product A Step 3 HCI dilute PhMgBr, ether Product C Product B acetone 2. H,о" Step 1: Step 2: Step 3:
Propose a mechanism for the follo heat Br Draw all missing reactants and/or products in the appropriate boxes by placing atoms on the canvas and connecting them with bonds. Add charges where needed. Electron flow arrows should start on an atom or a bond and should end on an atom, bond, or location where a new bond should be created H-Br: Cl H-Br: H20
Propose an efficient synthesis for the transformation below,
using two sequential reductive aminations. Enter
the appropriate number or letter from the reagent list handout.
Propose an efficient synthesis for the transformation below, using two sequential reductive aminations. Enter the appropriate number or letter from the reagent list handout. Step 1 + NaBH3CN, H+, Step 2 - NaBH3CN, H+ Reagent List (Updated 4/30/2020) Enter # or letter in the appropriate boxes. Note: Exam responses are case insensitive Alkyl Halides (X = Cl,...
12) (85 pts total) Provide the bond-line structures of the reactants and of the products. For the products labeled with a star, give the names of the new functional groups formed in the products. (A) (13 pts) CH3OH CHỊCH NHA phosp gene (COCI) (B) (9 pts) maleic anhydride leq aniline (C) (6 pts) KOH, H2O, A N-cyclohexyl- propan amide (D) (11 pts) 2,2-dimethylprop an al ethylene glycol (E) (13 pts) le 1 eg Сн,он CH3OH не 2-methyl cyclopentanone (F) (6...
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...
draw the missing structures for the
letters
Scheme 1 Br S NaOH CI + A B + С H2N NH2 Scheme 2 1. MCPBA Na2Cr2O7 D E 2. H20, H30+ H30+ Scheme 3 1. LIAIH4 PBr3 F G Н 2. H30+ ether Scheme 4 1. H20, Hg(OAc)2 DMP H I 2. NaBH4 CH2Cl2 Scheme 5 OH tosyl chloride Na J K pyridine ОН
Queston 6 (56 pts.). Provide the missing major organic products, or reagents/conditions, or organic reactants, as appropriate. Do not forget to include stereochemistry as appropriate unless specified otherwise. 2. Hgo :0: :o 1. Na* CN 2. H30* /heat gnore stereochemistry c) :Br: :OH d) 1 Equiv H3C CI: e) Ph h) heat (Aldol reaction)
18 Question (3 points) Draw the three requested missing structures for this acetoacetic ester synthesis. Just draw the main organic product of each step-leave out any byproducts 1. NaOEt, EtOH 2. PhCH2Br 3. NaOEt, EtOH 4. CHal 5. NaOH, H2O 6. H30", heat 1st attempt Part 1 (1 point) al See Periodic Table See Hint Draw the product after Step 2:
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
Provide the missing products for the following molecules:
Br Br- 1. K* OEt / EtOH 2. H30* / H20, Heat 1. NaOEt / ETOH CI 2.
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