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1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI...
help please! 1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry. 1)...
help please!
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry. 1) PCC, CH2Cl2 2) Brz, acetic acid OH 3) KotBu, A 4) NaOEt, EtOH P CO 8 5) H2O+ workup 6) THF, H.CaPPha HCB , cat. PdOAC) cat. PPh3, DMF, EN | CHA 0 нс. CH32) LDA, THF, -78 °C CHICH,then H3O+ workup 4) NaBH4, EtOH, then H3O+ workup 5) cat. TSOH, benzaldehyde 1) cat. H2SO4, A 2) O3. CH2Cl2, then (CH3)2S CH; 3) NaOE,...
1) Reactions. Provide the major products for each reaction sequence, account for stereochemistry 1) KMnO4, A 2) SOCI...
1)
Reactions. Provide the major products for each reaction sequence,
account for stereochemistry
1) KMnO4, A 2) SOCI, CH2Cl2 3) 2 equiv. 1) ethylene oxide, THF 2) H3O+ workup Culi 3) DIBAL-H, THF 4) H3O+ workup 5) cat. TsOH, THF H3CCHE (c) HN COH 1) excess LAH, THE 2) H30+ workup 3) 1 equiv. EtN, DMF 4) pyridine i ( " culi , THF (d) PC Ph 2) H3O+/H2O workup 3) KMnO4, A 4) CH,OH, cat. H2SO4 5) cat. TsOH,...
1. Predict the major organic products of the following reactions. Draw all stereoisomers that are formed....
1. Predict the major organic products of the following reactions. Draw all stereoisomers that are formed. НО, OH 1 eq ,H2SO4 (assume H2O workup of reaction to neutralize product) 1. LDA 2. (assume H,O workup of reaction to neutralize product) 3. Hg(OAC)2 4. NaBH, EtOH 1eq HBr EtOH ambiente 1. Brz. CCL 2. NaOET, ETOH OH
1. Give the structure(s) of the major product(s) expected from the following reactions. Assume standard aqueous...
1. Give the structure(s) of the major product(s) expected from the following reactions. Assume standard aqueous workup conditions are used for product isolation. (40 points, 4 points for cach). H a) Sia,BH (1.0 eq) THF, 0 °C b) CH-CO-D, 60 °C OTS KOI-Bu -BuOH "Me 1a, LDA (1.0 eq). THF, -78 °C 16. TMSCI 2a, Toluene, heat 2b, H* acequous workup 1a, LDA, THF 2, LDA (1.0 q). THE 10. CH3COCI 2, CH,CH_CH_Br EtOC 1) HCI, MeOHXH, heat 2). Hz,...
1. Give the major product of the following reactions, write NR. if no reaction happens. Indicate the stereochemistr...
1. Give the major product of the following reactions, write NR. if no reaction happens. Indicate the stereochemistry if necessary CHCI KOC(CH3). (CH),COH 1. conc. HBr, heat 2. KOBU, HOBU 1. NaOM, MOH CI 2. BICN 1. 1 eq. BH3. THE 2. H2O2, NaOH, H2O 3. Hg(OAC), MeOH 4. NaBH4, NaOH, H2O 1. conc. HCI 2. LDA, THF 3. O. CH,OH 4.(CH), 1. Hg(OAC), THE 2. NaBH, NaOH, H2O > OH (Hint: product has a bicyclic ring)
PROBLEMS 1. Reagents. Give the structures of the major products (A-G) expected from the following reactions....
PROBLEMS 1. Reagents. Give the structures of the major products (A-G) expected from the following reactions. Assume standard aqueous workup conditions are used for product isolation. a. OH 1. TBSCI imidazole, CH2Cl2 ► DMF, -18°C tot HO OH2. NalO4, CH2Cl2 large excoss A 80% b. олон 1. TSCI. py B "CH, 2. LiEt3BH. THE c. MeOC O H OH 1. TICI (1 cq) py, cat. DMAP - 2. TBSOT 2,6-lutidine, CH2Cl2 C1 79% 3. LIBHA, THE 4. Php. 12 imidazole...
Predict the major product for the following transformations. Pay attention to stereochemistry where appropriate. Submit your...
Predict the major product for the following transformations.
Pay attention to stereochemistry where appropriate. Submit your
answers labeled clearly with the letter above the structure. You
can show intermediates of individual steps to earn partial credit,
where applicable.
1. HSCH2CH2SH p-TsOH 2. n-BuLi OTBS 3. 4. Raney-Ni SİPr 1.AIC13. O 2. NaBH4, H20 1. HCN O 2. H2SO4 NH2 3.workup EtOH 1. PPha H2CO 2. n-BuLi 3. benzaldehyde Eto 1. ethyl bromide 2.NaOH 3. HOEt, 4. LiAlH4 5. H2O NaCN...
What's the major product in each step of the reaction? e) 1. NaOEt, EtOH dilute OEt...
What's the major product in each step of the reaction?
e) 1. NaOEt, EtOH dilute OEt Eto 2. HyO*, heat 1. LiAIH4, ether 1. DIBAL, THF 2. H', H2O h) 1.2 eq. CH,CH2MgBr, ether 2. D3O OCH, 1) OH, H20 3) EtOH, H,o* 2) H,o 4) excess CHMgBr 5) H,O
Provide the missing reagent or major organic product from the following reaction sequence. Take note of...
Provide the missing reagent or major organic product from the following reaction sequence. Take note of the direction of the arrows. Write only the corresponding letters or numbers in the space provided. If the reagent or product is not available then write NONE. Assume aqueous workup is applied at the end of the reaction except for deprotonation reactions. Br 2 PhMgBr х Dess Martin (CH3)2Culi Y REAGENT BANK A. PBrz, Br2 D. NaOEt, EtOH G. CH3OH B. HBr, Br2 E....
QUESTION 5 OH The Major Product in the reaction sequence below is OH 1) HBO OH...
QUESTION 5 OH The Major Product in the reaction sequence below is OH 1) HBO OH 2) KOT-Bu 3) CH3CO3H 1 2 3 @ A4 0 0 B.1 0.2 D.3 QUESTION 6 он The Major Product in the reaction sequence below is он 1) Bra (dilute), H20 CH 2) NaOH 3)H" (cat , H2O OH OH ОН ( با ما - -OH OH Note: All Products Race mic 1 2 A2 E. 1 C. 0.3 QUESTION 11 The Major Product...
help please!
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry. 1) PCC, CH2Cl2 2) Brz, acetic acid OH 3) KotBu, A 4) NaOEt, EtOH P CO 8 5) H2O+ workup 6) THF, H.CaPPha HCB , cat. PdOAC) cat. PPh3, DMF, EN | CHA 0 нс. CH32) LDA, THF, -78 °C CHICH,then H3O+ workup 4) NaBH4, EtOH, then H3O+ workup 5) cat. TSOH, benzaldehyde 1) cat. H2SO4, A 2) O3. CH2Cl2, then (CH3)2S CH; 3) NaOE,...
1)
Reactions. Provide the major products for each reaction sequence,
account for stereochemistry
1) KMnO4, A 2) SOCI, CH2Cl2 3) 2 equiv. 1) ethylene oxide, THF 2) H3O+ workup Culi 3) DIBAL-H, THF 4) H3O+ workup 5) cat. TsOH, THF H3CCHE (c) HN COH 1) excess LAH, THE 2) H30+ workup 3) 1 equiv. EtN, DMF 4) pyridine i ( " culi , THF (d) PC Ph 2) H3O+/H2O workup 3) KMnO4, A 4) CH,OH, cat. H2SO4 5) cat. TsOH,...
1. Predict the major organic products of the following reactions. Draw all stereoisomers that are formed. НО, OH 1 eq ,H2SO4 (assume H2O workup of reaction to neutralize product) 1. LDA 2. (assume H,O workup of reaction to neutralize product) 3. Hg(OAC)2 4. NaBH, EtOH 1eq HBr EtOH ambiente 1. Brz. CCL 2. NaOET, ETOH OH
1. Give the structure(s) of the major product(s) expected from the following reactions. Assume standard aqueous workup conditions are used for product isolation. (40 points, 4 points for cach). H a) Sia,BH (1.0 eq) THF, 0 °C b) CH-CO-D, 60 °C OTS KOI-Bu -BuOH "Me 1a, LDA (1.0 eq). THF, -78 °C 16. TMSCI 2a, Toluene, heat 2b, H* acequous workup 1a, LDA, THF 2, LDA (1.0 q). THE 10. CH3COCI 2, CH,CH_CH_Br EtOC 1) HCI, MeOHXH, heat 2). Hz,...
1. Give the major product of the following reactions, write NR. if no reaction happens. Indicate the stereochemistry if necessary CHCI KOC(CH3). (CH),COH 1. conc. HBr, heat 2. KOBU, HOBU 1. NaOM, MOH CI 2. BICN 1. 1 eq. BH3. THE 2. H2O2, NaOH, H2O 3. Hg(OAC), MeOH 4. NaBH4, NaOH, H2O 1. conc. HCI 2. LDA, THF 3. O. CH,OH 4.(CH), 1. Hg(OAC), THE 2. NaBH, NaOH, H2O > OH (Hint: product has a bicyclic ring)
PROBLEMS 1. Reagents. Give the structures of the major products (A-G) expected from the following reactions. Assume standard aqueous workup conditions are used for product isolation. a. OH 1. TBSCI imidazole, CH2Cl2 ► DMF, -18°C tot HO OH2. NalO4, CH2Cl2 large excoss A 80% b. олон 1. TSCI. py B "CH, 2. LiEt3BH. THE c. MeOC O H OH 1. TICI (1 cq) py, cat. DMAP - 2. TBSOT 2,6-lutidine, CH2Cl2 C1 79% 3. LIBHA, THE 4. Php. 12 imidazole...
Predict the major product for the following transformations.
Pay attention to stereochemistry where appropriate. Submit your
answers labeled clearly with the letter above the structure. You
can show intermediates of individual steps to earn partial credit,
where applicable.
1. HSCH2CH2SH p-TsOH 2. n-BuLi OTBS 3. 4. Raney-Ni SİPr 1.AIC13. O 2. NaBH4, H20 1. HCN O 2. H2SO4 NH2 3.workup EtOH 1. PPha H2CO 2. n-BuLi 3. benzaldehyde Eto 1. ethyl bromide 2.NaOH 3. HOEt, 4. LiAlH4 5. H2O NaCN...
What's the major product in each step of the reaction?
e) 1. NaOEt, EtOH dilute OEt Eto 2. HyO*, heat 1. LiAIH4, ether 1. DIBAL, THF 2. H', H2O h) 1.2 eq. CH,CH2MgBr, ether 2. D3O OCH, 1) OH, H20 3) EtOH, H,o* 2) H,o 4) excess CHMgBr 5) H,O
Provide the missing reagent or major organic product from the following reaction sequence. Take note of the direction of the arrows. Write only the corresponding letters or numbers in the space provided. If the reagent or product is not available then write NONE. Assume aqueous workup is applied at the end of the reaction except for deprotonation reactions. Br 2 PhMgBr х Dess Martin (CH3)2Culi Y REAGENT BANK A. PBrz, Br2 D. NaOEt, EtOH G. CH3OH B. HBr, Br2 E....
QUESTION 5 OH The Major Product in the reaction sequence below is OH 1) HBO OH 2) KOT-Bu 3) CH3CO3H 1 2 3 @ A4 0 0 B.1 0.2 D.3 QUESTION 6 он The Major Product in the reaction sequence below is он 1) Bra (dilute), H20 CH 2) NaOH 3)H" (cat , H2O OH OH ОН ( با ما - -OH OH Note: All Products Race mic 1 2 A2 E. 1 C. 0.3 QUESTION 11 The Major Product...
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