9. Making a Wittig reagent. Draw the product when each is treated with thriphenylphosphine, then followed by n-butyllithium.
10. Predict the product after each step.
9. Making a Wittig reagent. Draw the product when each is treated with thriphenylphosphine, then followed by n-butyllith...
Part I – Reactions Draw the expected major product(s) or required reagent(s) for each of the following reactions. Part 1 - Reactions (20 marks) Draw the expected major product(s) or required reagent(s) for each of the following reactions. Question Answer 1. MgBr 1. CH3CN 2. H30* 2. OH HT ОН 3. Br PPh3 1. BULI 2. CH20 CI (1 mole) ОН 5. 1. LDA ? (directed aldol condensation) 2. CH3CHO 6. HO H (cat) OH ? (cyclic anhydride) . (-H20)...
Draw the expected major product(s) or required reagent(s) for each of the following reactions. Question Answer 1. MgBr 1. CH3CN ? 2. H30* 2. OH H* ? OH 3. Br PPh3 1. Buli ? 2. CH20 4. IZ CI (1 mole) OH
Predict the Products/Reagents. Draw the expected products from the following reactions or fill in the missing reagent(s). Where a stereocenter is created, indicate the configuration of the product. Predict the Products/Reagents. Draw the expected products from the following reactions or fil in the missing reagent(s). Where a stereocenter is created, indicate the configuration of the product Br Mgo Et20 8. 1. PhCH2Br 2. BuLi PPh3 9. H2N Et, (c CO2Et Ph 10. NH2 NaBH3CN
Draw the product formed when 1-bromobutane is treated with cach reagent. 1. Li (2 equiv) 2. Mg in (CHCH2):0 solvent 3. Li (2 equiv), then Cul (0.5 equiv) 4. The answer in (a), then H;O 5. The answer in (b), then D20 6. The answer in (a), then CH,CCH Draw the product formed when (CH3CH2CH2CH2) CuLi is treated with each compound. In so cases, no reaction occurs. CHн, ,then H,O Draw the product formed when the a.ß-unsaturated ketone A is...
Draw the major organic product when each compound is treated with Tollens' reagent. If no reaction occurs, draw the reactant. Reaction A Reaction BReaction C
Draw the major organic product for the reaction below. Clearly show stereochemistry in the product. u Br Homo 1. PPh3 2. n-butyllithium CH,
What product is formed when 1-pentene (CH2CH2CH2CH=CH) is treated with each reagent? a. HBr draw structure ... b. HCI draw structure ...
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...
What product is formed when 1-pentene (CH2CH2CH2CH=CH,) is treated with each reagent? a. H2, Pd draw structure ... b. H20, H2SO4 draw structure ...
8. Provide the major organic product which results when PhCH2CH2CO2H is treated with 2 eq. butyllithium followed by H30+. 9. Provide the major organic product which results when (CH3)2CHCH2CH2COCI is treated with LIAIH[OC(CH3)313-