give product and mechanism 1) PPh 2) n-Buli Br 3) Photo
TF + Buli oo -78°C
OH 1) CH3CH2CH2MĚC 2) H2O 1 2. 1) CH3CH2CH2Br 2) P(Ph)3, n-BuLi (You may start with ylide) 3. 4. N [H2SO4 Me2NH -H20 5. m OH 1) CH3CH2CH2MĚC 2) H2O 1 2. 1) CH3CH2CH2Br 2) P(Ph)3, n-BuLi (You may start with ylide) 3. 4. N [H2SO4 Me2NH -H20 5. m
4. This equilibrium reaction of bromo-pyridines with BuLi favours formation of the weaker base which can be treated with a suitable electrophile. Explain why only the 4-substituted pyridine is obtained in these reactions. Ac Br i) BuLi i) BuLi ii) Ac20 i) Ac20 Br 4. This equilibrium reaction of bromo-pyridines with BuLi favours formation of the weaker base which can be treated with a suitable electrophile. Explain why only the 4-substituted pyridine is obtained in these reactions. Ac Br i)...
What is the major organic product obtained from the following reaction? 1. PPh3 2. Buli 3.CH3CH2CHO 4. H20 Br a. 2-methyl-2-pentene b. (E)-3-methyl-2-pentene c. 4-methyl-1-pentene ed. (Z)-3-methyl-2-pentene
What is the major organic product obtained from the following reaction? 1. PPh 2. Buli 3.CH3CH2CHO 4. H20 Br a. 2-methyl-2-pentene b.(Z)-3-methyl-2-pentene c. 4-methyl-1-pentene d.(E)-3-methyl-2-pentene
Which is reagent R in this reaction? Br R O A. n-Buli OB. n-BuMgBr OC. PPh3 + 2 n-Buli OD. Cul + 2 n-Buli In the following Michael addition reaction with compound served as the Michael acceptor, A? CH2(CO2Et) H2O/H30* А KOH A OH OA i ОВ. Ос. OD. i QUESTION 7 Compound 1 is an acetyl protected precursor of the phytonutrient pterostilbene (2), a natural antioxidant found in blueberries. Which reagents would you use to synthesize 1 starting with...
Provide an arrow pushing mechanism. محل 1) Phan, . 2) BuLi
OH 1) CH3CH2CH2MĚC 2) H2O 1 2. 1) CH3CH2CH2Br 2) P(Ph)3, n-BuLi (You may start with ylide) 3. 4. N [H2SO4 Me2NH -H20 5. m
Which is reagent in this reaction? R O An-BuMgBr B. Cul + 2 n-Buli OC. PPh3 + 2 n.Buli D.n-Buli Which of these compounds is the best Michael acceptor? А. СВ. ham