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help please! 1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry. 1)...
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI...
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI 2) Bry, acetic acid 3) KOBU, A 4) NaOEI, ETOH, P CO- 5) H30 workup 6) THF, H.COPPA HC CH2 O e .cat. Pd(OAc) cat. PPh. DMF, EIN 2) LDA, THF. -78 °C 3) Chichen H3O* workup 4) NaBH, EtOH, then H3O+ workup 5) cat. TSOH, benzaldehyde (c) L AL SUO TESTE TO 1) cat. H2SO4. A лон 2) O3, CH, Cl, then (CH),...
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,...
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...
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....
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...
1) Reactions. Provide the major product for each reaction sequence, account for stereochemistry 1) PCC, CHCI 2) Bry, acetic acid 3) KOBU, A 4) NaOEI, ETOH, P CO- 5) H30 workup 6) THF, H.COPPA HC CH2 O e .cat. Pd(OAc) cat. PPh. DMF, EIN 2) LDA, THF. -78 °C 3) Chichen H3O* workup 4) NaBH, EtOH, then H3O+ workup 5) cat. TSOH, benzaldehyde (c) L AL SUO TESTE TO 1) cat. H2SO4. A лон 2) O3, CH, Cl, then (CH),...
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,...
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...
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....
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...
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